DOI: 10.1063/1.447715. Mechanisms and rate constants for the vibrational relaxation of HD(<i>v</i>=4, 5, and 6) in collisions with HD, 4He, and D2

Mechanisms and rate constants for the vibrational relaxation of HD(v=4, 5, and 6) in collisions with HD, 4He, and D2

10.1063/1.447715

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

The relaxation of highly vibrationally excited HD with several collision partners is examined using direct overtone excitation and time-resolved photoacoustic detection of the subsequent change in translational energy of the gas. Analysis of such data for HD(v=4, 5 and 6) self-relaxation yields vibration-translation (V-T) and vibration–vibration (V–V) rate constants for collisions between HD(v=1 to 6) and HD(v=0). The V-T rate constant becomes larger than the V–V rate constant above v=4. Similarly, relaxation data for the HD(v=4 and 5)–4He systems is analyzed and the HD–4He V-T rate constants at v=4 and v=5 are presented. The differences in the quantum number scaling of the V-T rates for the HD–HD and HD–4He systems are discussed. Finally, the time-resolved photoacoustic data for HD(v=4) relaxing in collisions with D2 shows the effect of the rapid, near-resonant V–V energy transfer between HD in the v=1 through v=4 levels and D2 in v=0.

Bibliography

Rohlfing, E. A., Rabitz, H., Gelfand, J., & Miles, R. B. (1984). Mechanisms and rate constants for the vibrational relaxation of HD(v=4,â5, and 6) in collisions with HD, 4He, and D2. The Journal of Chemical Physics, 81(2), 820â827.

Authors 4

Eric A. Rohlfing (first)
Herschel Rabitz (additional)
Jack Gelfand (additional)
Richard B. Miles (additional)

References 13 Referenced 23

{'key': '2024021001040502500_r1', 'first-page': '221', 'volume': '51', 'year': '1980', 'journal-title': 'Chem. Phys.'} / Chem. Phys. (1980)
10.1063/1.441927 / J. Chem. Phys. (1981)
10.1063/1.331464 / J. Appl. Phys. (1982)
{'key': '2024021001040502500_r4'}
{'key': '2024021001040502500_r5'}
{'key': '2024021001040502500_r6'}
10.1016/0301-0104(79)80117-2 / Chem. Phys. (1979)
10.1063/1.441711 / J. Chem. Phys. (1981)
10.1016/0009-2614(79)80322-X / Chem. Phys. Lett. (1979)
{'key': '2024021001040502500_r9a'}
10.1063/1.437770 / J. Chem. Phys. (1979)
10.1063/1.1672656 / J. Chem. Phys. (1970)
{'key': '2024021001040502500_r12', 'first-page': '203', 'volume': '27', 'year': '1974', 'journal-title': 'Chem. Phys. Lett.'} / Chem. Phys. Lett. (1974)

Dates

Type	When
Created	22 years, 6 months ago (Feb. 28, 2003, 12:34 p.m.)
Deposited	1 year, 6 months ago (Feb. 9, 2024, 9:18 p.m.)
Indexed	1 year, 6 months ago (Feb. 10, 2024, 8:47 a.m.)
Issued	41 years, 1 month ago (July 15, 1984)
Published	41 years, 1 month ago (July 15, 1984)
Published Print	41 years, 1 month ago (July 15, 1984)

Funders 0

None

BibTeX

@article{Rohlfing_1984, title={Mechanisms and rate constants for the vibrational relaxation of HD(v=4, 5, and 6) in collisions with HD, 4He, and D2}, volume={81}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.447715}, DOI={10.1063/1.447715}, number={2}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Rohlfing, Eric A. and Rabitz, Herschel and Gelfand, Jack and Miles, Richard B.}, year={1984}, month=jul, pages={820–827} }

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