paul j. dagdigian - krieger school of arts &...
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PAUL J. DAGDIGIAN
Department of Chemistry
The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218
Phone_ (410) 516-7438; e-mail: [email protected]
RESEARCH INTERESTS
Physical Chemistry: Dynamics of molecular collisions, reactive intermediates, chemical reactions,
vibrational and rotational energy transfer, laser spectroscopy, laser-based detection techniques
EDUCATION
1967 B.A. Magna cum laude, major: chemistry, Haverford College
1972 Ph.D. Research area: physical chemistry, University of Chicago
APPOINTMENTS
1972-1974 Postdoctoral Associate, Dept. Chemistry, Columbia University, advisor: R. N. Zare
1974-1978 Assistant Professor, Department of Chemistry, Johns Hopkins University
1979-1980 Associate Professor, Department of Chemistry, Johns Hopkins University
1981-present Professor, Department of Chemistry, Johns Hopkins University
1998-2005 Chair, Department of Chemistry, Johns Hopkins University
1999-present Arthur D. Chambers Professor of Chemistry, The Johns Hopkins University
2005-2006 Visiting Fellow, JILA, University of Colorado
2005-present Adjunct Professor, Department of Chemistry and Biochemistry, U. Maryland
2013-1014 Visiting Professor, U. New South Wales, UNSW Canberra Campus, Australia
FELLOWSHIPS AND AWARDS
1976-1980 Alfred P. Sloan Research Fellow
1977-1982 Camille and Henry Dreyfus Teacher-Scholar
2007 Maryland Chemist of the Year, Maryland Section of the ACS
SERVICE TO DEPARTMENT, UNIVERSITY, AND COMMUNITY (selected)
1982-1984 Member, Editorial Board, The Journal of Chemical Physics
1985-1991 Eastern U.S. Editor, Laser Chemistry (Gordon and Breach Science Publishers)
1985 Vice-chair, 1985 Conference on the Dynamics of Molecular Collisions
1987 Chair, 1987 Conference on the Dynamics of Molecular Collisions
1988 Participant, ARO Workshop on Nitramine Propellant Ignition and Combustion,
Chapel Hill, NC
1988-1989 Member, Program Committee, Quantum Electronics Laser Science Meeting,
Baltimore, MD
1989-1990 Vice-Chair, Division of Chemical Physics, American Physical Society
1990-1991 Member, Program Committee, Quantum Electronics Laser Science Meeting,
Baltimore, MD
1990-1992 Chair, Division of Chemical Physics, American Physical Society
1992 Member, Workshop on Local Measurement Techniques for Tropospheric OH and
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HO2, Menlo Park, CA
1995-1996 Co-organizer, ACS Symposium on Bimolecular Interactions of Small Free Radicals
2002 Vice-chair, Gordon Research Conference on Atomic and Molecular Interactions
2004 Chair, Gordon Research Conference on Atomic and Molecular Interactions
2004 Member, Herbert P. Broida Prize Committee, American Physical Society
2004 Participant, U.S.-Egypt Workshop on Laser Chemistry and Applications to
Materials and Biomedical Research, Cairo, Egypt
2006 Evaluator of Chemistry Department of St. Mary's College of Maryland for ACS
Committee on Professional Training
2006 Participant, Investment Strategy Meeting, Army Research Office
2006-2011 Member, Homewood Academic Council, Johns Hopkins University
2006-2012 Member, American Chemical Society Petroleum Fund Advisory Board
2008 Member, Army Chemistry Coordinating Group, Army Research Office
2010 Organizer, Symposium on Laser-Based Detection of CBE Threats, Pacifichem 2010
2010 Rapporteur, Habilitation of François Lique, Université du Havre, FR
2011-2012 Member, Tenure and Appointment Procedures Committee, Johns Hopkins U.
2011-present Visiting Associate, Committee on Professional Training, ACS
2012 Evaluator of Chemistry Department of New Jersey Institute of Technology for ACS
Committee on Professional Training
2013-2017 Member, Homewood Academic Council, Johns Hopkins University
PROFESSIONAL SOCIETIES
Fellow, American Physical Society
Member, American Chemical Society
PUBLICATIONS
1. P. J. Dagdigian, J. Graff and L. Wharton, “Stark effect of NaLi X1+,” J. Chem. Phys. 55, 4980-
4982 (1971).
2. J. Graff, P. J. Dagdigian and L. Wharton, “Electric resonance spectrum of NaLi,” J. Chem. Phys.
57, 710-714 (1972).
3. P. J. Dagdigian and L. Wharton, “Molecular beam electric deflection and resonance
spectroscopy of the heteronuclear alkali dimers: 39K7Li, Rb7Li, 39K23Na, Rb23Na, and 133Cs23Na,” J. Chem. Phys. 57, 1487-1496 (1972).
4. P. J. Dagdigian and L. Wharton, “Stark effect of BaCl2,” J. Chem. Phys. 58, 1243-1245 (1973).
5. H. W. Cruse, P. J. Dagdigian and R. N. Zare, “Crossed-beam reactions of barium with hydrogen
halides: Measurement of internal state distributions by laser-induced fluorescence,” Faraday
Discuss. Chem. Soc. 55, 277-292 (1973).
6. P. J. Dagdigian, H. W. Cruse and R. N. Zare, “Radiative lifetimes of the alkaline earth
monohalides,” J. Chem. Phys. 60, 2330-2339 (1974).
7. R. N. Zare and P. J. Dagdigian, “Tunable laser fluorescence method for product state analysis,”
Science 185, 739-747 (1974).
8. P. J. Dagdigian and R. N. Zare, “Primitive angular distribution studies of internal states in
crossed-beam reactions using laser fluorescence detection,” J. Chem. Phys. 61, 2464-2465
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(1974).
9. P. J. Dagdigian, H. W. Cruse, A. Schultz and R. N. Zare, “Product state analysis of BaO from
the feactions Ba + CO2 and Ba + O2,” J. Chem. Phys. 61, 4450-4465 (1974).
10. P. J. Dagdigian, H. W. Cruse and R. N. Zare, “Laser fluorescence study of AlO formed in the
reaction Al + O2: Product state distribution, dissociation energy, and radiative lifetime,” J.
Chem. Phys. 62, 1824-1833 (1975).
11. P. J. Dagdigian, “Detection of LiH and NaH molecular beams by laser fluorescence and
measurement of radiative lifetimes of the A1+ state,” J. Chem. Phys. 64, 2609-2615 (1976).
12. P. J. Dagdigian, H. W. Cruse and R. N. Zare, “Vibrational state analysis of unrelaxed BaI from
the reactions Ba + CH3I and Ba + CH2I2,” Chem. Phys. 15, 249-260 (1976).
13. L. Pasternack and P. J. Dagdigian, “Laser-fluorescence study of the reactions of alkaline earth
atoms with BrCN: Spectroscopic observations of the alkaline earth monocyanides,” J. Chem.
Phys. 65, 1320-1326 (1976).
14. M. H. Alexander, P. J. Dagdigian and A. E. DePristo, “Quantum interpretation of full state-
selected rotationally inelastic collision experiments,” J. Chem. Phys. 66, 59-66 (1977)
15. Book review: “Gas Kinetics,” by M. F. R. Mulcahy, J. Chem. Educ. 54, A197 (1977).
16. L. Pasternack and P. J. Dagdigian, “Time-of-flight velocity selection using pulsed tunable laser
fluorescence detection,” Rev. Sci. Instrum. 48, 226-228 (1977).
17. P. J. Dagdigian, “Dependence of collision complex lifetime on product internal state: Laser
fluorescence detection of the Ca + NaCl crossed beam reaction,” Chem. Phys. 21, 453-466
(1977).
18. M. H. Alexander and P. J. Dagdigian, “Rotational alignment in inelastic collisions,” J. Chem.
Phys. 66, 4126-4132 (1977).
19. B. E. Wilcomb and P. J. Dagdigian, “Determination of state resolved rotationally inelastic cross
sections: LiH(j=1) – Ar,” J. Chem. Phys. 67, 3829-3830 (1977).
20. L. Pasternack and P. J. Dagdigian, “The effect of reagent translation on product internal energy
distributions: Laser fluorescence study of Al + O2,” J. Chem. Phys. 67, 3854-3863 (1977).
21. P. J. Dagdigian, “Determination of the absolute chemiluminescence cross section and photon
yield for the Ca(4s4p 3P) + N2O reaction,” Chem. Phys. Lett. 55, 239-244 (1978).
22. L. Pasternack and P. J. Dagdigian, “The reaction of metastable Ca atoms with O2 and CO2,”
Chem. Phys. 33, 1-11 (1978).
23. M. H. Alexander and P. J. Dagdigian, “Statistical and dynamical influences on electronic
branching in reactions of dround- and excited-state alkaline earth atoms with molecular
oxidants,” Chem. Phys. 33, 13-25 (1978).
24. B. E. Wilcomb and P. J. Dagdigian, “Visible chemiluminescence from the reaction of metastable
Sr with N2O: Absolute cross section and photon yield,” J. Chem. Phys. 69, 1779-1781 (1978).
25. Book review: “Vibrational and Rotational Relaxation in Gases,” by J. D. Lambert, J. Chem.
Educ. 56, A42 (1979).
26. P. J. Dagdigian, B. E. Wilcomb and M. H. Alexander, “LiH state-to-state rotationally inelastic
cross sections in collisions with HCl and DCl,” J. Chem. Phys. 71, 1670-1682 (1979).
27. P. J. Dagdigian, “Ground state dipole moment of NaH,” J. Chem. Phys. 71, 2328-2329 (1979).
28. P. J. Dagdigian and J. P. Doering, “Measurement of the rotational energy distribution of ground
state N2+ ions from H2
+ – N2 collisions by laser induced fluorescence,” Chem. Phys. Lett. 64,
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200-202 (1979).
29. M. H. Alexander and P. J. Dagdigian, in “Translation Excitation – General Discussion,” Faraday
Disc. Chem. Soc. 67, 141-142 (1979); in “Electronic Excitation – General Discussion,” ibid.
357.
30. L. Pasternack, D. M. Silver, D. R. Yarkony and P. J. Dagdigian, “Experimental and theoretical
study of the CaI 4s3d 1D – 4s2 1S and 4s4p 3P1 – 4s2 1S forbidden transition,” J. Phys. B 13,
2231-2241 (1980).
31. P. J. Dagdigian, “Laser fluorescence measurements of integral cross sections for rotational
transitions of state-selected lithium hydride,” in International Conference on the Physics of
Electronic and Atomic Collisions, edited by N. Oda and K. Takayanagi (North-Holland
Publishing Co., Amsterdam, 1980), pp. 513-521.
32. P. J. Dagdigian and B. E. Wilcomb, “Rotationally inelastic collisions of LiH with He. III.
Experimental determination of state-to-state cross sections,” J. Chem. Phys. 72, 6462-6465
(1980).
33. P. J. Dagdigian and M. H. Alexander, “Experimental and theoretical study of rotationally
inelastic polar molecule collisions: 7LiH – HCN,” J. Chem. Phys. 72, 6513-6520 (1980).
34. J. A. Irvin and P. J. Dagdigian, “Chemiluminescence from the Ca(4s3d 1D) + O2 reaction:
Absolute cross sections, photon yield, and CaO dissociation energy,” J. Chem. Phys. 73, 176-
182 (1980).
35. M. H. Alexander and P. J. Dagdigian, “The Failure of rigid shell models for rotationally inelastic
LiH – He collisions,” J. Chem. Phys. 73, 1233-1237 (1980).
36. P. J. Dagdigian, “Measurement of the vibrational state dependence of the LiH A1+ dipole
moment,” J. Chem. Phys. 73, 2049-2051 (1980).
37. M. H. Alexander, E. F. Jendrek and P. J. Dagdigian, “Validity of energy gap representations of
rotationally inelastic cross sections between polar molecules,” J. Chem. Phys. 73, 3797-3803
(1980).
38. P. J. Dagdigian, “Collisional vibrational excitation of lithium hydride,” Chem. Phys. 52, 279-285
(1980).
39. R. Diffenderfer, P. J. Dagdigian and D. R. Yarkony, “Spin forbidden radiative transitions in
atomic calcium,” J. Phys. B 14, 21-27 (1981).
40. J. A. Irvin and P. J. Dagdigian, “A study of the reactions Ca (1S, 3P, and 1D) + N2O under
single-collision conditions and at higher pressures: Chemiluminescence cross sections, photon
yields, and collisional energy transfer in CaO* by N2O,” J. Chem. Phys. 74 , 6178-6187 (1981).
41. P. J. Dagdigian, “Laser fluorescence study of MgO formed from Mg(3s3p 3P) + O2 and N2O
under single-collision conditions,” J. Chem. Phys. 76, 5375-5384 (1982).
42. P. J. Dagdigian, “Electric deflection study of CaCl: Estimate of the ground state dipole
moment,” Chem. Phys. Lett. 88, 225-228 (1982).
43. J. W. Cox and P. J. Dagdigian, “Single-collision chemiluminescence study of the Sr(1S, 3P) and
Mg(3P) + N2O reactions,” J. Phys. Chem. 86, 3738-3745 (1982).
44. S. P. Hernandez, P. J. Dagdigian and J. P. Doering, “N2 rotational energy distributions in cold,
supersonic beams from electron excited fluorescence measurements of N2+,” Chem. Phys. Lett.
91, 409-412 (1982).
45. S. P. Hernandez, P.J. Dagdigian and J. P. Doering, “Experimental verification of the breakdown
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of the electric dipole rotational selection rule in electron impact ionization-excitation of N2,” J.
Chem. Phys. 77, 6021-6026 (1982).
46. P. J. Dagdigian, “Quantum-state-resolved scattering of lithium hydride,” in Energy Storage and
Redistribution in Molecules, edited by J. Hinze (Plenum, New York, 1983), pp. 149-163.
47. R. N. Diffenderfer, D. R. Yarkony and P. J. Dagdigian, “Radiative lifetimes and transition
moments in MgO,” J. Quant. Spectrosc. Radiat. Transfer 29, 329-331 (1983).
48. P. J. Dagdigian and J. P. Doering, “Electron impact ionization-excitation of CO in a supersonic
beam,” J. Chem. Phys. 78, 1846-1850 (1983).
49. H.-J. Yuh and P. J. Dagdigian, “Intramultiplet mixing in collisions of calcium 4s4p 3P with
helium: Measurement of state-to-state cross sections,” Phys. Rev. A 28, 63-72 (1983).
50. M. H. Alexander and P. J. Dagdigian, “Propensity roles in rotationally inelastic collisions of
diatomic molecules in 3 electronic states,” J. Chem. Phys. 79, 302-310 (1983).
51. H.-J. Yuh and P. J. Dagdigian, “Effect of atomic spin-orbit state on reactivity: Reaction of state-
selected Ca(3PJ) with Cl2,” J. Chem. Phys. 79, 2086-2088 (1983).
52. J. W. Cox and P. J. Dagdigian, “Single-collision chemiluminescence study of the Ba(1S, 3D) +
NO2, N2O, O3 reactions,” J. Chem. Phys. 79, 5351-5359 (1983).
53. M. H. Alexander and P. J. Dagdigian, “Clarification of the electronic charge asymmetry in -
state -doublets with some implications for molecular collisions,” J. Chem. Phys. 80, 4325-4332
(1984).
54. B. Pinchemel and P. J. Dagdigian, “Collisional vibrational relaxation in the A2 state of CN,”
Chem. Phys. Lett. 106, 313-316 (1984).
55. J. W. Cox and P. J. Dagdigian, “Chemiluminescence and laser fluorescence study of several
Mg(1S, 3P) oxidation reactions: On the MgO dissociation energy,” J. Phys. Chem. 88, 2455-
2459 (1984).
56. S. J. Bullman and P. J. Dagdigian,. “Electric quadrupole refocusing of CaBr: Differential
transmission of hyperfine levels and assignment of low J lines in optical spectra,” Chem Phys.
88, 479-483 (1984).
57. H.-J. Yuh and P. J. Dagdigian, “Spin-orbit effects in chemical reactions: The reaction of spin-
orbit state-selected Ca(3PJ) with Cl2, Br2, and CH3Cl,” J. Chem. Phys. 81, 2375-2384 (1984).
58. S. J. Bullman and P.J. Dagdigian, “Propensity rules in rotationally inelastic polar molecule
collisions involving 2+ molecules: CaCl(X2+) – CH3Cl,” J. Chem. Phys. 81, 3347-3348
(1984).
59. H.-J. Yuh and P. J. Dagdigian, “State-resolved fine-structure transitions in collisions of Ca 4s4p 3PJ with H2 and D2 molecules,” J. Phys. B 17, 4351-4357 (1984).
60. P. J. Dagdigian, “Spin-orbit effects in chemiluminescent reactions of state-selected Ca(3PJ),” in
Gas-Phase Chemiluminescence and Chemi-Ionization, edited by A. Fontijn (North-Holland
Publishing Co., Amsterdam, 1985), pp. 203-219
61. P. J. Dagdigian and S. J. Bullman, “State-resolved rotationally inelastic cross sections of
CaCl(X2+) with polar molecule targets,” J. Chem. Phys. 82, 1341-1350 (1985).
62. N. Furio and P. J. Dagdigian, “Chemiluminescence study of the Ca(1D) + BrCN reaction:
Estimate of the CaCN dissociation energy,” Chem. Phys. Lett. 115, 358-361 (1985).
63. M. H. Alexander, S. L. Davis, and P. J. Dagdigian, “Inelastic collisions of CaCl(X2+) with Ar:
A collaborative theoretical and experimental study,” J. Chem. Phys. 83, 556-566 (1985).
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64. M. H. Alexander and P. J. Dagdigian, “Collision-induced transitions between molecular
hyperfine levels: Quantum formalism, propensity rules, and experimental study of CaBr(X2+) +
Ar,” J. Chem. Phys. 83, 2191-2200 (1985).
65. G. C. Corey, M. H. Alexander, and P. J. Dagdigian, “Rotationally inelastic collisions between a
molecule in a 2S+1 electronic state and an open-shell target: General quantum analysis and
experimental measurement of state-resolved cross sections for CaCl(X2+) + NO(X2),” J.
Chem. Phys. 84, 1547-1553 (1986).
66. N. Furio, M. L. Campbell, and P. J. Dagdigian, “Dependence of the chemiluminescence cross
section on spin-orbit state for the reaction of Ca(3PJ) with alkyl bromides,” J. Chem. Phys. 84,
4332-4340 (1986).
67. D. G. Truhlar and P. J. Dagdigian, “The 1985 conference on the dynamics of molecular
collisions,” Comments At. Mol. Phys. 17, 335-342 (1986).
68. P. J. Dagdigian and J. P. Doering, Comment on “Laser-induced fluorescence of N2(X1g+) and
electron-impact excited N2+(X2g
+) in a pulsed supersonic beam: Rotational distribution,” by
H. Helvajian, B. M. DeKoven, and A. P. Baronavski, Chem. Phys. 104, 355-356 (1986).
69. M. L. Campbell, N. Furio, and P. J. Dagdigian, “The reaction of spin-orbit state-selected
Ca(3PJ) with CH3I, CH2I2, and SF6,” Laser Chem. 6, 391-402 (1986).
70. N. Furio, A. Ali, and P. J. Dagdigian, “Interference effects in rotational-state-resolved collisional
energy transfer between the A2 and X2+ states of CN,” Chem. Phys. Lett. 125, 561-565
(1986).
71. M. L. Campbell and P. J. Dagdigian, “Effect of spin-orbit state on chemical reactivity: Study of
chemiluminescent and ground state products from reaction of Sr(3PJ) with several halogen-
containing molecules,” J. Am. Chem. Soc. 108, 4701-4706 (1986).
72. M. H. Alexander, G. C. Corey, S. L. Davis, and P. J. Dagdigian, “Polarization and alignment
effects in collisions involving open-shell molecules,” Amer. Inst. Phys. Conf. Proc. 146, 538-
544 (1986).
73. N. Furio, A. Ali, and P. J. Dagdigian, “State-resolved study of collisional energy transfer
between A2 v=7 and X2+ v=11 rotational levels of CN,” J. Chem. Phys. 85, 3860-3868
(1986).
74. M. L. Campbell and P. J. Dagdigian, “The effect of incident spin-orbit state on the
chemiluminescent reactions of Ba(3DJ) with several oxidants,” J. Chem. Phys. 85, 4453-4462
(1986)
75. Guo Jihua, A. Ali, and P. J. Dagdigian, “State-to-state collisional interelectronic and
intraelectronic energy transfer involving CN A2 v=3 and X2+ v= 7 rotational levels,” J.
Chem. Phys. 85, 7098-7105 (1986).
76. A. Ali, Guo Jihua, and P. J. Dagdigian, “Collisionless and collision-induced B – X emission
from laser-excited CN A2 v=10 rotational levels,” Chem. Phys. Lett. 131, 331-334 (1986).
77. P. J. Dagdigian and M. L. Campbell, “Spin-orbit effects in gas-phase chemical reactions,” Chem.
Rev. 87, 1-17 (1987).
78. A. Ali, N. Furio, and P. J. Dagdigian, “Photolytic production of CN in metastable argon-
cyanogen flows,” Chem. Phys. Lett. 136, 483-486 (1987).
79. A. Ali, Guo Jihua, and P. J. Dagdigian, “State-resolved inelastic cross sections from CN A2
v=8 to X2+ v=12: Quenching of the even-odd alternation in the final rotational state
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populations,” J. Chem. Phys. 87, 2045-2050 (1987).
80. A. Ali and P. J. Dagdigian, “Rotational energy transfer within the B3g v=3 manifold of
molecular nitrogen,” J. Chem. Phys. 87, 6915-6926 (1987).
81. B. Pouilly, P. J. Dagdigian, and M. H. Alexander, “Clarification of the electronic asymmetry of
doublets in 3 electronic states of diatomic molecules,” J. Chem. Phys. 87, 7118-7124 (1987).
82. M. L. Campbell and P. J. Dagdigian, “Spin-orbit effects in chemical reactions: Investigation of
ground state products from reactions of Ba(3D),” Faraday Discuss. Chem. Soc. 84, 127-143
(1987).
83. P. J. Dagdigian and M. H. Alexander, in “General Discussion,” Faraday Discuss. Chem. Soc. 84,
105-106, 171 (1987).
84. P. J. Dagdigian, “Inelastic scattering II: Optical methods,” in Atomic and Molecular Beam
Methods, Vol. 1, edited by G. Scoles, D. Bassi, U. Buck, and D. Lainé (Oxford U.P., New York,
1988), chapter 23.
85. P. J. Dagdigian, “Reactive scattering II: Optical methods,” in Atomic and Molecular Beam
Methods, Vol. 1, edited by G. Scoles, D. Bassi, U. Buck, and D. Lainé (Oxford U.P., New York,
1988), chapter 24.
86. P. J. Dagdigian, “Spin-orbit effects in chemical reactions,” in Selectivity in Chemical Reactions,
edited by J. C. Whitehead (Kluwer Academic, Dordrecht, 1988), pp. 147-177.
87. M. H. Alexander, H.-J. Werner, and P. J. Dagdigian, “Energetics and spin- and -doublet
selectivity in the infrared multiphoton dissociation HN3( ˜ X 1A') N2(X1g+) +
NH(X3–, a1): Theory,” J. Chem. Phys. 89, 1388-1400 (1988).
88. M. H. Alexander, P. Andresen, R. Bacis, R. Bersohn, F. J. Comes, P. J. Dagdigian, R. N. Dixon,
R. W. Field, G. W. Flynn, K.-H. Gericke, E. R. Grant, B. J. Howard, J. R. Huber, D. S. King, J.
L. Kinsey, K. Kleinermanns, K. Kuchitsu, A. C. Luntz, A. J. McCaffery, B. Pouilly, H. Reisler,
S. Rosenwaks, E. W. Rothe, M. Shapiro, J. P. Simons, R. Vasudev, J. R. Wiesenfeld, C. Wittig,
and R. N. Zare, “A nomenclature for doublet levels in rotating linear molecules,” J. Chem.
Phys. 89, 1749-1753 (1988).
89. P. J. Dagdigian, B. E. Forch, and A. W. Miziolek, “Collisional transfer between and quenching
of the 3p 3P and 5P states of the oxygen atom,” Chem. Phys. Lett. 148, 299-308 (1988).
90. A. W. Miziolek, C. F. Melius, L. R. Thorne, P. J. Dagdigian, and M. H. Alexander, “Gas phase
combustion chemistry of nitramine propellants,” Ballistic Research Laboratory, Technical
Report BRL-TR-2906 (1988).
91. P. J. Dagdigian, “State resolved cross sections for rotationally inelastic collisions of
NH2( ˜ X 2B1) with helium,” J. Chem. Phys. 90, 2617-2625 (1989).
92. J. P. Doering and P. J. Dagdigian, “Experimental electron scattering spectrum of atomic carbon,”
Chem. Phys. Lett. 154, 234-236 (1989).
93. N. Furio, A. Ali, P. J. Dagdigian, and H.-J. Werner, “Laser excitation of the overlapping CN B –
A (8,7) and B – X (8,11) bands: The relative phase of the B – A and B – X transition moments,”
J. Mol. Spectrosc. 134, 199-213 (1989).
94. M. H. Alexander and P. J. Dagdigian, “Energetics and Spin Selectivity in the Infrared
Multiphoton Decomposition Process HN3( ˜ X 1A') N2(X1g+) + NH(X3–, a1),” Amer. Inst.
Phys. Conf. Proc. 191, 651-656 (1989).
95. P. J. Dagdigian and A. Ali, “Double resonance studies of rotational energy transfer in the N2
8
B3g state,” Amer. Inst. Phys. Conf. Proc. 191, 664-669 (1989).
96. P. J. Dagdigian, “Scaling relations in the rotational excitation of NH(X3–) N=0 by argon,” J.
Chem. Phys. 90, 6110-6115 (1989).
97. J. Chen, E. Quiñones, and P. J. Dagdigian, “Observation of NH(a1, v=1) from the H + N3
reaction,“ J. Chem. Phys. 90, 7603-7604 (1989).
98. P. J. Dagdigian, M. H. Alexander, and K. Liu, “The inelastic scattering of 2 [case (b)]
molecules and an understanding of the differing doublet propensities for molecules of vs. 3
orbital occupancy,” J. Chem. Phys. 91, 839-848 (1989).
99. P. J. Dagdigian, W. R. Anderson, R. C. Sausa, and A. W. Miziolek, “The photodissociation of
formaldoxime and its methylated homologs: Search for H2CN fluorescence,” J. Phys. Chem. 93,
6059-6064 (1989).
100. D. G. Sauder, D. Patel-Misra, and P. J. Dagdigian, “Rotationally inelastic collisions of a
molecule in a 1 electronic state: NH(a1),” J. Chem. Phys. 91, 5316-5323 (1989).
101. D. G. Sauder and P. J. Dagdigian, “Determination of the internal state distribution of NO
produced from the H + NO2 reaction,” J. Chem. Phys. 92, 2389-2396 (1990).
102. J. J. Chu, P. Marcus, and P. J. Dagdigian, “One-color photolysis/ionization study of HN3: The
N2 fragment internal energy distribution and –v–J correlations,” J. Chem. Phys. 93, 257-267
(1990).
103. J. Chen, E. Quiñones, and P. J. Dagdigian, “A molecular beam study of the H + N3 reaction:
Product NH internal state distribution and electronic state branching ratio,” J. Chem. Phys. 93,
4033-4042 (1990).
104. D. Patel-Misra, D. G. Sauder, and P. J. Dagdigian, “Observation of highly excited bending levels
of NCO( ˜ X 2),” J. Chem. Phys. 93, 5448-5456 (1990).
105. E. Quiñones, J. Chen, and P. J. Dagdigian, “Observation of NH(X3–, a1) from the H + NCO
reaction,” Chem. Phys. Lett. 174, 65-70 (1990).
106. D. Patel-Misra, D. G. Sauder, and P. J. Dagdigian, “Observation of the ND A3 – X3– ∆v=+1
sequence,” Chem. Phys. Lett. 174, 113-118 (1990).
107. D. Patel-Misra, G. Parlant, D. G. Sauder, D. R. Yarkony, and P. J. Dagdigian, “Radiative and
nonradiative decay of the NH(ND) A3 electronic state: Predissociation induced by the 5–
state,” J. Chem. Phys. 94, 1913-1922 (1991).
108. G. Parlant, P. J. Dagdigian, and D. R. Yarkony, “Predissociation of the c1 state of NH(ND):
The role of dipolar spin-spin coupling,” J. Chem. Phys. 94, 2364-2367 (1991).
109. M. H. Alexander, P. J. Dagdigian, M. E. Jacox, C. E. Kolb, C. F. Melius, H. Rabitz, M. D.
Smooke, and W. Tsang, “Nitramine propellant ignition and combustion research,” Prog. Energy
Combust. Sci. 17, 263-296 (1991).
110. D. Patel-Misra, D. G. Sauder, and P. J. Dagdigian, “Internal state distribution of OD produced
from the O(3P) + ND2 reaction,” J. Chem. Phys. 95, 955-962 (1991).
111. D. G. Sauder, D. Patel-Misra, and P. J. Dagdigian, “The vibronic state distribution of the
NCO( ˜ X 2) product from the CN + O2 reaction,” J. Chem. Phys. 95, 1696-1707 (1991).
112. D. Patel-Misra, D. G. Sauder, P. J. Dagdigian, and D. R. Crosley, “Comment on: Observation of
highly excited levels on NCO( ˜ X 2),” J. Chem. Phys. 95, 2222 (1991).
113. M. H. Alexander, P. J. Dagdigian, and H.-J. Werner, “Potential energy surface control of the NH
product state distribution in the decomposition reaction HN3( ˜ X 1A') NH(a1) + N2(X1g+),”
9
Faraday Discuss. Chem. Soc. 91, 319-335 (1991).
114. M. H. Alexander, P. J. Dagdigian, and D. Lemoine, “Quantum scattering studies of inelastic
collisions of NH(A3) with helium: Fine-structure and -doublet propensities,” J. Chem. Phys.
95, 5036-5046 (1991).
115. D. Patel-Misra and P. J. Dagdigian, “Dynamics of the O(3P) + NH2 reaction: The HNO + H
product channel,” Chem. Phys. Lett. 185, 387-392 (1991).
116. J. Chen and P. J. Dagdigian, “Study of the Ca and Sr + HN3 reactions: Indirect evidence for the
formation of the metal imides,” J. Phys. Chem. 96, 1284-1288 (1992).
117. J. Chen and P. J. Dagdigian, “Laser fluorescence study of the Pb + F2, Cl2 reactions: Internal
state distribution of the PbCl product and radiative lifetimes of PbF(A, B) and PbCl(A),” J.
Chem. Phys. 96, 1030-1035 (1992).
118. E. Quiñones and P. J. Dagdigian, “Study of the pressure dependence of the N2 B3g – A3u+
chemiluminescence from the N + N3 reaction,” J. Phys. Chem. 96, 2201-2205 (1992).
119. B. Bohn, F. Stuhl, G. Parlant, P. J. Dagdigian, and D. R. Yarkony, “Predissociation of the
NH/ND(c1, v', J') states,” J. Chem. Phys. 96, 5059-5068 (1992).
120. D. Patel-Misra and P. J. Dagdigian, “The dynamics of the NH(X3–) + NO(X2) reaction:
Internal state distribution of the OH(X2) product,” J. Phys. Chem. 96, 3232-3236 (1992).
121. J. Chen and P. J. Dagdigian, “Spectroscopy and excited state dynamics of the HNF (DNF)
molecule,” J. Chem. Phys. 96, 7333-7343 (1992).
122. Y.-L. Huang and P. J. Dagdigian, “Determination of the internal state distribution of NO(X2)
produced in the O(3P) + NH(X3–) reaction,” J. Chem. Phys. 97, 180-188 (1992).
123. D. Patel-Misra and P. J. Dagdigian, “State resolved electronic quenching of NH(a1) by Xe and
CO,” J. Chem. Phys. 97, 4871-4880 (1992).
124. X. Yang and P. J. Dagdigian, “Reactions of electronically excited boron atoms: Quenching rate
constants and the radiative lifetime of the 4p 2P state,” Chem. Phys. Lett. 200, 217-223 (1992).
125. B. J. Gaffney and P. J. Dagdigian, “Oxygen binding to hemoglobin,” in Physical Chemistry:
Developing a Dynamic Curriculum, edited by R. W. Schwenz and R. J. Moore (American
Chemical Society, Washington, DC, 1993), pp. 370-379.
126. J. Chen and P. J. Dagdigian, “Photofragmentation excitation spectroscopy of the DNF molecule:
Observation of the ND predissociation product,” J. Chem. Phys. 98, 3554-3556 (1993).
127. X. Yang and P. J. Dagdigian, “Chemiluminescence spectra and cross sections for the reaction of
B(4p 2P) with H2 and D2,” J. Phys. Chem. 97, 4270-4276 (1993).
128. E. Hwang, Y.-L. Huang, P. J. Dagdigian, and M. H. Alexander, “Experimental and theoretical
characterization of the BAr van der Waals complex: The X2, A2+, and B2+ electronic
states,” J. Chem. Phys. 98, 8484-8495 (1993).
129. P. J. Dagdigian, D. Patel-Misra, A. Berning, H.-J. Werner, and M. H. Alexander, “A joint
experimental and theoretical study of A2 X2+ electronic energy transfer in the CN
molecule induced by collisions with helium,” J. Chem. Phys. 98, 8580-8592 (1993).
130. J. Chen and P. J. Dagdigian, “The DNF ˜ A 2A' – ˜ X 2A" band system: Rotational analysis of the
origin band and partial analysis of several higher bands,” J. Mol. Spectrosc. 162, 152-167
(1993).
131. J. Chen and P. J. Dagdigian, “Spectrally resolved fluorescence in the HNF (DNF) ˜ A 2A' – ˜ X 2A" band system,” Chem. Phys. Lett. 213, 586-592 (1993).
10
132. E. Hwang, P. J. Dagdigian, and M. H. Alexander, “Bound – free B2+ – X2, A2+ emission in
the BAr van der Waals complex,” Can. J. Chem. 72, 821-827 (1994).
133. J. Chen and P. J. Dagdigian, “Predissociation in the ˜ A 2A' state of HNF (DNF): NH (ND)
photofragmentation excitation spectroscopy,” J. Chem. Phys. 100, 4884-4893 (1994).
134. J. Chen and P. J. Dagdigian, “Radiative and nonradiative decay of electronically excited HNF
and DNF,” Israel J. Chem. 34, 25-32 (1994).
135. M. H. Alexander, S. Gregurick, and P. J. Dagdigian, “Potential energy surfaces for the
interaction of BH(X1+, A1) with Ar and a theoretical investigation of the stretch-bend levels
of the ArBH(A) van der Waals molecule,” J. Chem. Phys. 101, 2887-2902 (1994).
136. E. Hwang and P. J. Dagdigian, “Observation and characterization of the ArBH(X1+, A1) van
der Waals molecule through fluorescence excitation spectroscopy,” J. Chem. Phys. 101, 2903-
2913 (1994).
137. M. H. Alexander, S. Gregurick, P. J. Dagdigian, G. W. Lemire, M. J. McQuaid, and R. C. Sausa,
“Potential energy surfaces for the interaction of CH(X2, B2–) with Ar and an assignment of
the stretch-bend levels of the ArCH(B) van der Waals molecule,” J. Chem. Phys. 101, 4547-
4560 (1994).
138. P. J. Dagdigian and M. H. Alexander, in “General Discussion,” Faraday Discuss. 97, 200, 415-
416, 417-419, 431 (1994).
139. M. H. Alexander and P. J. Dagdigian, “On the generation of preferential doublet populations
in the collisional relaxation of highly rotationally excited CH(X2),” J. Chem. Phys. 101, 7468-
7479 (1994).
140. M. Yang, S. Gregurick, M. H. Alexander, and P. J. Dagdigian, “Theoretical study of the
interaction of AlH(X1+, A1) with Ar: Potential energy surfaces and bend-stretch levels of the
ArAlH(X, A) van der Waals complex,” J. Chem. Phys. 102, 2413-2425 (1995).
141. E. Hwang and P. J. Dagdigian, “Fluorescence excitation spectroscopy and dynamics of the
ArAlH(X1+, A1) van der Waals complex,” J. Chem. Phys. 102, 2426-2439 (1995).
142. M. Yang, M. H. Alexander, H.-J. Werner, J. Hohmann, L. Neitsch, F. Stuhl, and P. J. Dagdigian,
“The rotational relaxation of NH(c1) in collisions with Ar: A combined theoretical and
experimental investigation,” J. Chem. Phys. 102, 4069-4083 (1995).
143. E. Hwang and P. J. Dagdigian, “Spin-orbit splitting in the ground X2 electronic state of the
BAr van der Waals complex,” Chem. Phys. Lett. 233, 483-488 (1995).
144. E. Hwang and P. J. Dagdigian, “Electronic spectroscopy and excited state dynamics of the
KrAlH(X1+, A1) van der Waals complex,” J. Phys. Chem. 99, 3430-3437 (1995).
145. D. F. Varley and P. J. Dagdigian, “Product state distributions and angular differential cross
sections from photo-initiated reactions of chlorine atoms with small hydrocarbons,” J. Phys.
Chem. 99, 9843-9853 (1995).
146. P. J. Dagdigian, “Experimental studies of rotationally inelastic state-resolved collisions of small
molecular free radicals,” in The Chemical Dynamics and Kinetics of Small Radicals, Part I,
edited by K. Liu and A. F. Wagner (World Scientific, Singapore, 1995), pp. 315-364.
147. X. Yang, E. Hwang, P. J. Dagdigian, M. Yang, and M. H. Alexander, “Experimental and
theoretical study of the B–Ne non-bonding interaction: The free – bound B2+ – X2 electronic
transition,” J. Chem. Phys. 103, 2779-2786 (1995).
148. S. A. Wright and P. J. Dagdigian, “Investigation of the effect of reagent CN rotational excitation
11
on the dynamics of the CN + O2 reaction,” J. Chem. Phys. 103, 6479-6489 (1995).
149. X. Yang, E. Hwang, M. H. Alexander, and P. J. Dagdigian, “Experimental investigation of
weakly bound B(2p, 3s)–H2/D2 complexes through laser fluorescence excitation spectroscopy,”
J. Chem. Phys. 103, 7966-7974 (1995).
150. X. Yang, E. Hwang, and P. J. Dagdigian, “Laser fluorescence excitation spectroscopy of BNe
electronic states correlating with the excited valence B(2s2p2 2D) atomic asymptote,” J. Chem.
Phys. 104, 599-606 (1996).
151. L. Neitsch, F. Stuhl, P. J. Dagdigian, and M. H. Alexander, “State-resolved inelastic collisions of
single rotational, fine-structure, and doublet levels of NH(A3) with helium: A combined
experimental and theoretical study,” J. Chem. Phys. 104, 1325-1337 (1996).
152. D. F. Varley and P. J. Dagdigian, “Product state resolved study of the Cl + (CH3)3CD reaction:
Comparison of the dynamics of abstraction of primary vs. tertiary hydrogens,” J. Phys. Chem.
100, 4365-4374 (1996).
153. X. Yang, L. Pederson, D. R. Yarkony, and P. J. Dagdigian, “Radiative and nonradiative decay of
the BH(b3–) state: A joint experimental and theoretical study,” J. Phys. Chem. 100, 5649-5653
(1996).
154. D. F. Varley and P. J. Dagdigian, “Comparison of the dynamics of abstraction of primary vs.
secondary hydrogens in the Cl + CD3CH2CD3 reactions,” Chem. Phys. Lett. 255, 393-400
(1996).
155. X. Yang, E. Hwang, and P. J. Dagdigian, “Observation of the weakly bound B(2s2p2 2D)–H2
complex by fluorescence depletion spectroscopy,” J. Chem. Phys. 104, 8165-8168 (1996).
156. S. A. Wright and P. J. Dagdigian, “Radiative and nonradiative decay of electronically excited
NCO,” J. Chem. Phys. 104, 8279-8291 (1996).
157. T. A. Van Marter, Y. Lu, M. C. Heaven, E. Hwang, P. J. Dagdigian, and J. Tellinghuisen,
“Spectroscopy of metastable species in a free-jet expansion: The D' A' transition in Br2,” J.
Molec. Spectrosc. 177, 311-319 (1996).
158. P. J. Dagdigian, D. F. Varley, R. Liyanage, R. J. Gordon, and R. W. Field, “Detection of DCl by
multiphoton ionization and determination of DCl and HCl internal state distributions,” J. Chem.
Phys. 105, 10251-10262 (1996).
159. E. Hwang, P. J. Dagdigian, and J. Tellinghuisen, “Spectroscopy of metastable Species in a free-
jet expansion: The A transition in Br2,” J. Molec. Spectrosc. 181, 297-306 (1997).
160. M. H. Alexander, M. Yang, A. Walton, X. Yang, E. Hwang, and P. J. Dagdigian, “A
collaborative theoretical and experimental study of the structure and electronic excitation
spectrum of the BAr and BAr2 somplexes,” J. Chem. Phys. 106, 6320-6331 (1997).
161. X. Yang and P. J. Dagdigian, “Fluorescence excitation and depletion spectroscopy of the BAr
complex: Electronic states correlating with the excited valence B(2s2p2 2D) asymptote,” J.
Chem. Phys. 106, 6596-6606 (1997).
162. L. Neitsch, F. Stuhl, P. J. Dagdigian, and M. H. Alexander, “Inelastic collisions of fine structure
and -doublet resolved rotational states of PH(A3, v=0) with helium,” J. Chem. Phys. 106,
7642-7653 (1997).
163. X. Yang and P. J. Dagdigian, “Spectroscopic study of B–Kr non-bonding interactions,” J. Phys.
Chem. A 101, 3509-3513 (1997).
164. P. J. Dagdigian, “State-resolved collision-induced electronic transitions,” Annu. Rev. Phys.
12
Chem. 48, 95-123 (1997).
165. S. A. Wright and P. J. Dagdigian, “Fluorescence excitation spectroscopy of the Ar–
HCO( ˜ X 2A', ˜ B 2A') van der Waals complex,” J. Chem. Phys. 107, 680-690 (1997).
166. H. M. Lambert and P. J. Dagdigian, “Photodissociation of vibrationally excited CH3Cl:
Modification of the dissociation dynamics,” Chem. Phys. Lett. 275, 499-505 (1997).
167. S. A. Wright and P. J. Dagdigian, “Rotational analysis of the ˜ B 2A" – ˜ X 2A" origin band of the
CH2CFO radical,” J. Chem. Phys. 107, 9755-9758 (1997).
168. P. J. Dagdigian, X. Yang, and E. Hwang, “Non-bonding interactions of the boron atom in the
excited 2s23s 2S Rydberg and 2s2p2 2D valence states,“ in Highly Excited States: Relaxation,
Reactions, and Structure, ACS Symposium Series, Vol. 678, edited by A. S. Mullin and G. C.
Schatz (American Chemical Society, Washington, DC, 1997), pp. 122-133.
169. A. Melchior, H. M. Lambert, P. J. Dagdigian, I. Bar, and S. Rosenwaks, “The photodissociation
of ground and vibrationally excited halogenated alkanes,” Israel J. Chem. 37, 455-465 (1997).
170. P. J. Dagdigian and X. Yang, “Chemical reaction within the electronically excited B(2s2p2 2D)–
H2 complex,” Faraday Discuss. 108, 287-307 (1997).
171. P. J. Dagdigian in “General Discussion,” Faraday Discuss. 108, 99, 208-210, 346-347, 347,
349, 443 (1997).
172. X. Yang, P. J. Dagdigian, and M. H. Alexander, “Experimental and theoretical study of the AlNe
complex,“ J. Chem. Phys. 108, 3522-3530 (1998).
173. H. M. Lambert, P. J. Dagdigian, and M. H. Alexander, “Spin-orbit branching in the
photofragmentation of HCl at long wavelength,“ J. Chem. Phys. 108, 4460-4466 (1998).
174. H. M. Lambert and P. J. Dagdigian, “Photodissociation of CH stretch overtone excited CH3Cl
and CHD2Cl (vCH = 5): Cl spin-orbit branching and atomic fragment yields,” J. Chem. Phys.
109, 7810-7820 (1998).
175. X. Yang, I. Gerasimov, and P. J. Dagdigian, “Electronic spectroscopy and excited state dynamics
of the Al–N2 complex,” Chem. Phys. 239, 207-221 (1998).
176. X. Yang and P. J. Dagdigian, “Electronic spectroscopy of the Al–H2 complex: Excited state
dynamics and orbital alignment of the AlH(A1) product,” J. Chem. Phys. 109, 8920-8928
(1998).
177. X. Yang and P. J. Dagdigian, “Selective rotational energy transfer from individual -doublet
levels of highly rotationally excited CN(A2),” Chem. Phys. Lett. 297, 506-514 (1998).
178. I. Gerasimov, X. Yang, and P. J. Dagdigian, “Laser fluorescence excitation spectra of the AlNC
and AlCN isomers,” J. Chem. Phys. 110, 220-228 (1999).
179. J. Lei and P. J. Dagdigian, “Electronic spectroscopy of the Al+–Ar complex,” Chem. Phys. Lett.
304, 317-322 (1999).
180. R. J. Barnes, A. Sinha, P. J. Dagdigian, and H. M. Lambert, “Doppler line shapes in the
photolysis of laser excited, aligned molecules: Application to the vibrationally mediated
photodissociation of HN3,” J. Chem. Phys. 111, 151-162 (1999).
181. I. Gerasimov, J. Lei, and P. J. Dagdigian, “Electronic spectroscopy of the Al–CH4/CD4
complex,” J. Phys. Chem. A 103, 5910-5917 (1999).
182. X. Yang and P. J. Dagdigian, “Observation of magnetic-dipole transitions in the CN B2+ – A2
band system,” J. Molec. Spectrosc. 198, 189-191 (1999).
183. M. H. Alexander, X. Yang, P. J. Dagdigian, A. Berning, and H.-J. Werner, “Potential energy
13
surfaces for the CN(X2+, A2)Ar system and inelastic scattering within the A state,” J. Chem.
Phys. 112, 781-791 (2000).
184. X. Yang, P. J. Dagdigian, and M. H. Alexander, “Experimental and theoretical study of
rotationally inelastic collisions of highly rotationally excited CN(A2) with Ar,” J. Chem. Phys.
112, 4474-4484 (2000).
185. J. R. Krumrine, M. H. Alexander, X. Yang, and P. J. Dagdigian. “Experimental and theoretical
study of the electronic spectrum of the BAr2 complex: Transition to the excited valence B(2s2p2 2D) state,” J. Chem. Phys. 112, 5037-5043 (2000).
186. J. Lei and P. J. Dagdigian, “Molecular beam study of the 6 – X6 electronic transition in
FeCl,” J. Chem. Phys. 112, 10221-10227 (2000).
187. Y. Kim, J. Fleniken, H. Meyer, M. H. Alexander, and P. J. Dagdigian, “A joint theoretical-
Experimental investigation of the lower bound states of the NO(X2)–Ar complex,” J. Chem.
Phys. 113, 73-85 (2000).
188. J. Lei and P. J. Dagdigian, “Laser fluorescence excitation spectroscopy of the CAr van der Waals
complex,” J. Chem. Phys. 113, 602-610 (2000).
189. B. Nizamov and P. J. Dagdigian, “Collisional quenching and energy transfer of the z5DJo states
of the Fe atom,” J. Phys. Chem. A 104, 6345-50 (2000).
190. B. Nizamov and P. J. Dagdigian, “Experimental study of rotationally inelastic collisions of
AlH(A1) with Ar: State-to-state rate constants and -doublet propensities,” J. Chem. Phys.
113, 4124-4131 (2000).
191. J. Lei and P. J. Dagdigian, “Identification of new bands in the orange system of FeO,” J. Molec.
Spectrosc. 203, 345-348 (2000).
192. P. J. Dagdigian, X. Yang, I. Gerasimov, and J. Lei, “Electronic spectroscopy and excited state
dynamics of aluminum atom–molecule complexes,” in Atomic and Molecular Beams: The State
of the Art 2000, edited by R. Campargue (Springer, Berlin, 2001), pp. 367-378.
193. B. Nizamov and P. J. Dagdigian, “Collisional quenching and vibrational energy transfer in the
A2+ state of the CF radical,” J. Phys. Chem. A 105, 29-33 (2001).
194. J. Lei and P. J. Dagdigian, “Observation of the FeNC molecule by laser fluorescence excitation
spectroscopy,” J. Chem. Phys. 114, 2137-2143 (2001).
195. P. J. Dagdigian, “Reactive scattering," in Encyclopedia of Chemical Physics and Physical
Chemistry,” edited by J. H. Moore and N. Spencer (IOP Publishing, Bristol, 2001), section B2.6.
196. M. Kind, F. Stuhl, Y.-R. Tzeng, M. H. Alexander, and P. J. Dagdigian, “Fine-structure state
resolved rotationally inelastic collisions of CH(A2, v=0) with Ar: A combined experimental
and theoretical study,” J. Chem. Phys. 114, 4479-4489 (2001).
197. M. H. Alexander, P. Soldán, T. G. Wright, Y. Kim, H. Meyer, P. J. Dagdigian, and E. P. F. Lee,
“The NO(X2)–Ne complex: II. Investigation of the lower bound states based on new potential
energy surfaces,” J. Chem. Phys. 114, 5588-5597 (2001).
198. X. Tan, P. J. Dagdigian, and M. H. Alexander, “Electronic spectroscopy and excited state
dynamics of the Al–H2/D2 complex,” Faraday Discuss. 118, 387-404 (2001).
199. P. J. Dagdigian, in “General Discussion,” Faraday Discuss. 118, 180-181, 241, 364, 426, 427-
428, 430 (2001).
200. X. Tan, P. J. Dagdigian, J. Williams, and M. H. Alexander, “Experimental and theoretical
investigation of the rotational structure of the Al–H2/D2 complex,” J. Chem. Phys. 114, 8938-
14
8947 (2001).
201. B. Nizamov, P. J. Dagdigian, Y.-R. Tzeng, and M. H. Alexander “Experimental and theoretical
study of -doublet resolved rotationally inelastic collisions of highly rotationally excited
CH(A2, v=0) with Ar,” J. Chem. Phys. 115, 800-809 (2001).
202. J. Lei, A. Teslja, B. Nizamov, and P. J. Dagdigian, “Free-jet electronic spectroscopy of the PO2
radical,” J. Phys. Chem. A 105, 7828-7833 (2001).
203. B. Nizamov, P. J. Dagdigian, and M. H. Alexander, “State-resolved rotationally inelastic
collisions of highly rotationally excited CN(A2) with helium: Influence of the interaction
potential,” J. Chem. Phys. 115, 8393-8402 (2001).
204. X. Tan and P. J. Dagdigian, “The 4s 3p electronic transition in aluminum atom – molecule
complexes: Bound and repulsive excited states,” J. Phys. Chem. A 105, 11009-11017 (2001).
205. C. Tao and P. J. Dagdigian, “Vibrationally mediated photodissociation of CH3Cl: The v = 3 and
4 CH stretch overtone levels,” Chem. Phys. Lett. 350, 63-70 (2001).
206. P. J. Dagdigian, “Quantum theory of vector correlations in vibrationally mediated
photodissociation,” J. Chem. Phys. 116, 7948-7956 (2002).
207. B. Nizamov, X. Yang, P. J. Dagdigian, and M. H. Alexander, “Experimental and theoretical
study of state-resolved electronically inelastic collisions of highly rotationally excited CN(A2)
with argon and helium: The role of gateway levels,” J. Phys. Chem. A 106, 8345-8354 (2002).
208. C. Tao, A. Teslja, P. J. Dagdigian, S. Atahan, and M. H. Alexander, “Laser spectroscopic study
of the SiAr van der Waals complex,” J. Chem. Phys. 116, 9239-9248 (2002).
209. X. Tan and P. J. Dagdigian, “Observation of new electronic states of the Al–H2/D2 complex,”
Chem. Phys. 283, 5-16 (2002).
210. C. Tao and P. J. Dagdigian, “Laser fluorescence excitation spectroscopy of the GeAr van der
Waals complex,” J. Chem. Phys. 118, 1242-1252 (2003).
211. B. Nizamov and P. J. Dagdigian, “Spectroscopic and kinetic investigation of methylene
amidogen by cavity ring-down spectroscopy,” J. Phys. Chem. A 107, 2256-2263 (2003).
212. X. Tan and P. J. Dagdigian, “The electronic spectrum of the gallium dimer,” J. Phys. Chem. A
107, 2642-2649 (2003).
213. C. Tao, X. Tan, P. J. Dagdigian, and M. H. Alexander, “Experimental and theoretical
investigation of the AlH b3– – a3 electronic transition,” J. Chem. Phys. 118, 10477-10484
(2003).
214. X. Tan and P. J. Dagdigian, “Vibrational energy transfer involving Renner-Teller levels of the
NCO( X 2) molecule,” Chem. Phys. Lett. 375, 532-539 (2003).
215. V. I. Babushok, F. C. DeLucia Jr., P. J. Dagdigian, M. J. Nusca, and A. W. Miziolek, “Kinetic
modeling of the LIBS plume from metallic lead,” Appl. Optics 42, 5947-5962 (2003).
216. J. B. Spicer, P. Dagdigian, R. Osiander, J. A. Miragliotta, X.-C. Zhang, R. Kersting, D. R.
Crosley, R. K. Hanson, and J. Jeffries, "Overview: MURI center on spectroscopic and time
domain detection of trace explosives in condensed and vapor phases," Proc. SPIE – Int. Soc.
Opt. Eng. 5089, 1088-1094 (2003).
217. C. Tao and P. J. Dagdigian, “Spectroscopic investigation of nonbonding interactions of group-14
atoms with rare gases: The SnAr van der Waals complex,” J. Chem. Phys. 120, 7512-7519
(2004).
218. A. Teslja, B. Nizamov, and P. J. Dagdigian, “The electronic spectrum of methyleneimine,” J.
15
Phys. Chem. A 108, 4433-4439 (2004).
219. C. Tao, P. J. Dagdigian, and M. H. Alexander, “Experimental and theoretical investigation of the
3s 2p transition in the BNe2 complex,” Chem. Phys. Lett. 392, 151-155 (2004).
220. A. Teslja and P. J. Dagdigian, “Determination of oxygen atom concentrations by cavity ring-
down spectroscopy,” Chem. Phys. Lett. 400, 374-378 (2004).
221. P. J. Dagdigian, “Transient gas-phase intermediates in the decomposition of energetic materials,”
in Overviews of Recent Research on Energetic Materials, edited by R. W. Shaw, T. B. Brill, and
D. L. Thompson (World Scientific, Singapore, 2005), pp. 129-160.
222. A. Khachatrian and P. J. Dagdigian, “Determination of the internal state distribution of the SD
product from the S(1D) + D2 reaction,” J. Chem. Phys. 122, 024303 (6 pages) (2005).
223. A. Khachatrian and P. J. Dagdigian, “Laser fluorescence study of the S(1D) + CD4 reaction:
Determination of the SD product internal state distribution,” Chem. Phys. Lett. 402, 265-269
(2005).
224. V. I. Babushok, F. C. DeLucia Jr., P. J. Dagdigian, and A. W. Miziolek, “Experimental and
kinetic modeling study of the laser-induced breakdown spectroscopy plume from metallic lead in
argon,” Spectrochim. Acta Part B 60, 926-934 (2005).
225. A. Khachatrian and P. J. Dagdigian, “Vibrational relaxation of OH by oxygen atoms,” Chem.
Phys. Lett. 415, 1-5 (2005).
226. A. Khachatrian and P. J. Dagdigian, “The effect of vibrational excitation on the collisional
removal of free radicals by atoms: OH(v=1) + N,” J. Phys. Chem. A 110, 3388-3392 (2006).
227. A. Teslja, P. J. Dagdigian, M. Banck, and W. Eisfeld, “Experimental and theoretical study of the
electronic spectrum of the methylene amidogen radical (H2CN): Verification of the 2A1 2B2
Assignment,” J. Phys. Chem. A 110, 7826-7834 (2006).
228. A. M. Zolot, W. W. Harper, B. G. Perkins, P. J. Dagdigian, and D. J. Nesbitt, “Quantum-state-
resolved reaction dynamics at the gas-liquid Interface: Direct absorption studies of HF(v,J)
product from F(2P) + squalane,” J. Chem. Phys. 125, 021101 (4 pages) (2006).
229. S. K. Shin and P. J. Dagdigian, “Dynamics of the 193 nm photodissociation of dichlorocarbene,”
J. Chem. Phys. 125, 133317 (9 pages) (2006).
230. S. K. Shin and P. J. Dagdigian, “Photodissociation dynamics of dichlorocarbene at 248 nm,”
Phys. Chem. Chem. Phys. 8, 3446–3452 (2006).
231. C. Ramos and P. J. Dagdigian, “Detection of vapors of explosives and explosive-related
compounds by ultraviolet cavity ringdown spectroscopy,” Appl. Optics 46, 620-627 (2007).
232. D. M. Wong and P. J. Dagdigian, “Comparison of IR and UV cavity ring-down spectroscopy
detection of transient intermediates: pyrolysis of methyl azide to form methyleneimine,”
Spectrochimica Acta Part A 67, 1019-1024 (2007).
233. S. K. Shin and P. J. Dagdigian, “Internal state distribution of the CF photofragment in the 193
nm photodissociation of CFCl and CFBr,“ J. Chem. Phys. 126, 134302 (8 pages) (2007).
234. C. Ramos and P. J. Dagdigian, “The effect of photochemistry on molecular detection by cavity
ringdown spectroscopy: Case study of an explosive-related compound,” Appl. Optics 46, 6526-
6532 (2007).
235. J. A. Kłos, P. J. Dagdigian, and M. H. Alexander, “Theoretical study of the multiplet branching
of the SD product in the S(1D) + D2 SD(2) + D,” J. Chem. Phys. 127, 154321 (10 pages)
(2007).
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236. D. Zemsky, R. Shneck, P. J. Dagdigian, and I. Bar, “Structure and morphology of pulsed laser
deposited boron carbide films: Influence of deposition geometry,” J. Appl. Phys. 102, 104309 (8
pages) (2007).
237. V. I. Babushok, F. C. DeLucia Jr., P. J. Dagdigian, J. L. Gottfried, C. A. Munson, M. J. Nusca,
and A. W. Miziolek,“ Kinetic modeling study of the laser-induced plasma plume of the
explosive cyclotrimethylenetrinitramine (RDX),” Spectrochim. Acta Part B 62, 1321-1328
(2007).
238. S. K. Shin and P. J. Dagdigian, “Formation of the CH fragment in the 193 nm photodissociation
of CHCl,“ J. Chem. Phys. 128, 064309 (7 pages) (2008).
239. S. K. Shin and P. J. Dagdigian, “Further investigation of the photodissociation of
dichlorocarbene near 248 nm,“ J. Chem. Phys. 128, 154322 (8 pages) (2008).
240. J. A. Kłos, F. Lique, M. H. Alexander, and P. J. Dagdigian, “Theoretical determination of rate
constants for vibrational relaxation and reaction of OH(X2) with O(3P) atoms,” J. Chem. Phys.
129, 064306 (10 pages) (2008).
241. D. M. Wong and P. J. Dagdigian, “Comparison of laser-induced breakdown spectra of organic
compounds with irradiation at 1.5 and 1.064 m,” Appl. Opt. 47, G149-G157 (2008).
242. A. M. Zolot, P. J. Dagdigian, and D. J. Nesbitt, “Quantum-state resolved reactive scattering at
the gas-liquid interface: F + squalane (C30H62) dynamics via high-resolution infrared
absorption of nascent HF(v, J),” J. Chem. Phys. 129, 194705 (11 pages) (2008).
243. P. J. Dagdigian and M. H. Alexander, “Tensor cross sections and the collisional evolution of
state multipoles; OH(X2)–Ar,” J. Chem. Phys. 130, 094303 (11 pages) (2009); erratum 131,
229902 (2 pages) (2009).
244. A. Khachatrian, P. J. Dagdigian, D. I. G. Bennett, F. Lique, J. Kłos, and M. H. Alexander,
“Experimental and theoretical study of rotationally inelastic collisions of CN(A2) with N2,” J.
Phys. Chem. A 113, 3922-3931 (2009).
245. P. J. Dagdigian and M. H. Alexander, “Tensor cross sections and collisional depolarization of
OH(X2) in collisions with helium,” J. Chem. Phys. 130, 164315 (9 pages) (2009).
246. P. J. Dagdigian and M. H. Alexander, “Dependence of elastic depolarization cross sections on
the potential: OH(X2)–Ar and NO(X2)–Ar,” J. Chem. Phys. 130, 204304 (7 pages) (2009).
247. A. Khachatrian and P. J. Dagdigian, “Laser-induced breakdown spectroscopy with laser
irradiation on mid-infrared hydride stretch transitions: polystyrene,” Appl. Phys. B 97, 243-248
(2009).
248. A. Khachatrian and P. J. Dagdigian, “Rotationally inelastic collisions of CN(A2) with small
molecules,” J. Phys. Chem. A 113, 13390-13394 (2009).
249. F. Lique, M. Jorfi, P. Honvault, P. Halvick, S. Y. Lin, H. Guo, D. Xie, P. J. Dagdigian, J. Kłos,
and M. H. Alexander, “O + OH H + O2 + H: A key reaction for interstellar chemistry. New
theoretical results and comparison with experiment,” J. Chem. Phys.131, 221104
(communication, 4 pages) (2009).
250. M. Weidman, M. Baudelet, S. Palanco, M. Sigman, P. J. Dagdigian, and M. Richardson
“Nd:YAG-CO2 dual-pulse laser‑ induced breakdown spectroscopy of organic films,” Optics
Express 18, 259-266 (2010).
251. A. Khachatrian and P. J. Dagdigian, “Laser-induced breakdown spectroscopy with laser
irradiation resonant with vibrational transitions,” Appl. Optics 49, C1–C7 (2010).
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252. P. J. Dagdigian , A. Khachatrian, and V. I. Babushok, “Kinetic model of C/H/N/O emissions in
laser-induced breakdown spectroscopy of organic compounds,” Appl. Optics 49, C58–C66
(2010).
253. P. J. Dagdigian and M. H. Alexander, “Depolarization in H2O–He collisions,” Mol. Phys. 108,
1159-1169 (2010).
254. L. Scharfenberg, J. Kłos, P. J. Dagdigian, M. H. Alexander, G. Meijer, and S. Y. T. van de
Meerakker, “State-to-state inelastic scattering of Stark decelerated OH radicals with Ar atoms,”
Phys. Chem. Chem. Phys. 12, 10660-10679 (2010).
255. Q. Ma and P. J. Dagdigian, “Kinetic model of atomic and molecular emissions in laser-induced
breakdown spectroscopy of organic compounds,” Anal. Bioanal. Chem. 400, 3193-3205 (2011).
256. L. Ma, P. J. Dagdigian, and M. H. Alexander, “Theoretical investigation of rotationally-inelastic
collisions of CH2(ã) with helium,” J. Chem. Phys. 134, 154307 (13 pages) (2011).
257. M. H. Alexander, G. E. Hall, and P. J. Dagdigian, “The approach to equilibrium: Detailed
balance and the master equation,” J. Chem. Educ. 88, 1538-1540 (2011).
258. M. H. Alexander and P. J. Dagdigian, “Theoretical investigation of rotationally inelastic
collisions of the methyl radical with helium,” J. Chem. Phys. 135, 064306 (9 pages) (2011).
259. G. Paterson, A. Relf, M. L. Costen, K. G. McKendrick, M. H. Alexander, and P. J. Dagdigian,
“Rotationally elastic and inelastic dynamics of NO(X2, v = 0) with Ar,” J. Chem. Phys. 135,
234304 (11 pages) (2011).
260. K. B. Gubbels, Q. Ma, M. H. Alexander, P. J. Dagdigian, D. Tanis, G. C. Groenenboom, A. van
der Avoird, and S. Y. T. van Meerakker, “Resonances in rotationally inelastic scattering of
OH(X2) with helium and neon,” J. Chem. Phys. 136, 144308 (13 pages) (2012).
261. S. J. McGurk, K. G. McKendrick, M. L. Costen, D. I. G. Bennett, J. Kłos, M. H. Alexander, and
P. J. Dagdigian, “Depolarization of rotational angular momentum in CN(A2, v=4) + Ar
collisions,” J. Chem. Phys. 136, 164306 (15 pages) (2012).
262. L. Ma, P. J. Dagdigian, and M. H. Alexander, “Theoretical investigation of rotationally inelastic
collisions of CH2( X ) with helium,” J. Chem. Phys. 136, 224306 (9 pages) (2012).
263. P. J. Dagdigian and M. H. Alexander, “Exact quantum scattering of transport properties:
OH(X2) – helium,” J. Chem. Phys. 137, 094306 (7 pages) (2012).
264. P. J. Dagdigian, “Theoretical investigation of collisional energy transfer in polyatomic
intermediates,” Int. Rev. Phys. Chem. 32, 229-265 (2013).
265. Q. Ma, P. J. Dagdigian, and M. H. Alexander, “Theoretical study of the vibrational relaxation of
the methyl radical in collisions with helium,” J. Chem. Phys. 138, 104317 (10 pages) (2013).
266. P. J. Dagdigian and M. H. Alexander, “Exact quantum scattering calculations of transport
properties: CH2( X3B1,a1A1)–helium,” J. Chem. Phys. 138, 164305 (7 pages) (2013).
267. F. Lique, G. Werfelli, P. Halvick, T. Stoecklin, A. Faure, L. Wiesenfeld, and P. J. Dagdigian,
“Spin-orbit quenching of the C+(2P) ion by collisions with para- and ortho-H2,” J. Chem. Phys.
138, 204314 (6 pages) (2013).
268. S. J. McGurk, K. G. McKendrick, M. L. Costen, M. H. Alexander, and P. J. Dagdigian, “Parity-
dependent oscillations in collisional polarization transfer: CN(A2, v=4) + Ar collisions,” J.
Chem. Phys. 139, 124304 (12 pages) (2013).
269. O. Tkác, A. G. Sage, S. J. Greaves, A. J. Orr-Ewing, P. J. Dagdigian, Q. Ma, and M. H.
Alexander, “Rotationally inelastic scattering of CD3 and CH3 with He: comparison of velocity
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map-imaging with quantum scattering calculations,” Chem. Sci. 4, 4199-4211 (2013).
270. P. J. Dagdigian and M. H. Alexander, “Exact quantum scattering calculations of transport
properties for the H2O–H system,” J. Chem. Phys. 139, 194309 (8 pages) (2013).
271. J. H. Lehman, M. I. Lester, J. Kłos, M. H. Alexander, P. J. Dagdigian, D. Herráez-Aguilar, F. J.
Aoiz, M, Brouard, H. Chadwick, T. Perkins, and S. A. Seamons, “Electronic quenching of OH
A2+ induced by collisions with Kr atoms,” J. Phys. Chem. A 117, 13481-13490 (2013).
272. H. Chadwick, M. Brouard, Y.-P. Chang, C. J. Eyles, G. McCrudden, T. Perkins, S. A. Seamons,
J. Kłos, M. H. Alexander, D. Herraéz-Aguilar, and F. J. Aoiz, “The collisional depolarization of
OH(A2+) and NO(X2) with Kr,” J. Chem. Phys. 140, 054306 (14 pages) (2014).
273. P. J. Dagdigian, “Fundamentals of optical spectroscopy,” in Laser Spectroscopy for Sensing:
Fundamentals, Techniques and Applications, edited by M. Baudelet (Woodhead Publishing Ltd.,
Sawston, UK, 2014), pp. 1-33.
274. O. Tkác, A. J. Orr-Ewing, P. J. Dagdigian, M. H. Alexander, J. Onvlee, and A. van der Avoird,
“Collision dynamics of symmetric top molecules: A comparison of the rotationally inelastic
scattering of CD3 and ND3 with He,” J. Chem. Phys. 140, 134308 (10 pages) (2014).
275. O. Tkác, Q. Ma, C. Rusher, S. J. Greaves, A. J. Orr-Ewing, and P. J. Dagdigian, “Differential
and integral cross sections for rotationally inelastic scattering of methyl radicals with H2 and
D2,” J. Chem. Phys. 140, 204318 (12 pages) (2014).
276. L. Ma, M. H. Alexander, and P. J. Dagdigian, “Theoretical investigation of intersystem crossings
between the ã and states of CH2 induced by collisions with helium,” J. Chem. Phys. 141,
064312 (10 pages) (2014).
277. Q. Ma, J. Kłos, M. H. Alexander, A. van der Avoird, and P. J. Dagdigian, “The interaction of
OH(X2Π) with H2: Ab initio potential energy surfaces and bound states,” J. Chem. Phys. 141,
174309 (14 pages) (2014).
278. L. Ma, P. J. Dagdigian, an M. H. Alexander, “Theoretical investigation of the relaxation of the
bending mode of CH2( ) by collisions with helium,” J. Chem. Phys. 141, 214305 (4 pages)
(2014).
279. P. J. Dagdigian and M. H. Alexander, “Transport properties for systems with deep potential
wells: H + O2,” J. Phys. Chem. A 118, 11935-11942 (2014).
280. O. Tkác, Q. Ma, M. Stei, A. Orr-Ewing, and P. J. Dagdigian, “Rotationally inelastic scattering of
methyl radicals with Ar and N2,” J. Chem. Phys. 142, 014306 (10 pages) (2015).
281. F. Daniel, A. Faure, P. J. Dagdigian, M.-L. Dubernet, F. Lique, and G. Pineau des Forets,
“Collisional excitation of water by hydrogen atoms,” Mon. Not. R. Astron. Soc. 446, 2312-2316
(2015).
282. P. J. Dagdigian, “Combustion simulations with accurate transport properties for reactive
intermediates,” Comb. Flame 162, 2480-2486 (2015).
283. D. Forthomme, M. L. Hause, H.-G. Yu, P. J. Dagdigian, T. J. Sears, and G. E. Hall, “Doppler-
resolved kinetics of saturation recovery,” J. Phys. Chem. A 119, 7439-7450 (2015).
284. H. C. Schewe, Q. Ma, N. Vanhaecke, X. Wang, J. Kłos, M. H. Alexander, S. Y. T. van de
Meerakker, G. Meijer, A. van der Avoird, and P. J. Dagdigian, “Rotationally inelastic scattering
of OH by molecular hydrogen: Theory and experiment,” J. Chem. Phys. 142, 204310 (13 pages)
(2015).
285. Q. Ma, A. van der Avoird, J. Loreau, M. H. Alexander, S. Y. T. van de Meerakker, and P. J.
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Dagdigian, “Resonances in rotationally inelastic of NH3 and ND3 with H2,” J. Chem. Phys. 143,
044312 (10 pages) (2015).
286. P. J. Dagdigian, “Accurate transport properties for H–CO and H–CO2, “ J. Chem. Phys. 143,
054303 (7 pages) (2015).
287. P. J. Dagdigian, J. Kłos, and M. H. Alexander, “Theoretical investigation of the dynamics of
O(1D 3P) electronic quenching by collision with Xe,” J. Chem. Phys. 143, 054306 (13 pages)
(2015).
288. L. A. Garofalo, M. C. Smith, P. J. Dagdigian, J. Kłos, M. H. Alexander, K. A. Boering, and J. J.-
M. Lin, “Electronic quenching of O(1D) by Xe: Oscillations in the product angular distribution
and their dependence on collision energy,” J. Chem. Phys. 143, 054307 (13 pages) (2015).
289. T. K. Boyson, P. J. Dagdigian, K. D. Pavey, N. K. FitzGerald, T. G. Spence, D. S. Moore, and C.
C. Harb, “Real-time multiplexed digital cavity-enhanced spectroscopy,” Optics. Lett. 40, 4560-
4562 (2015).
290. O. Tkác, A. K. Saha, J. Loreau, Q. Ma, P. J. Dagdigian, D. H. Parker, A. van der Avoird, and A.
J. Orr-Ewing, “Rotationally inelastic scattering of ND3 with H2 as a probe of the intermolecular
potential energy surface,” Mol. Phys. 113, 3925-3933 (2015).