Infrared-ultraviolet double resonance studies of fast vibrational energy transfer in D2CO

B. J. Orr*, C. P. Bewick

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


Experiments are reported showing that collisional V-V transfer between the ν6 (inplane wag, 989-cm-1) and ν4) (out-of-plane bend, 938-cm-1) vibrational modes is remarkably rapid, occurring with approximately gas-kinetic efficiency. Earlier studies of D2CO/D2CO collisions have been extended to a variety of collision partners (He, Ar, CH4, N2, N2O), providing some control of the relative rates of ν6 → ν4 transfer and of rotational relaxation with respect to quantum numbers J and Ka. The extraordinary efficiency of collision-induced ν6 → ν4 transfer in D2CO is attributable to the rovibrational mixing effect of Coriolis coupling and the availability of a number of efficient quasielastic relaxation channels.

Original languageEnglish
Title of host publicationCLEO 88 Conf Lasers Electro Opt 1988 Tech Dig Ser Vol 7
Place of PublicationWashington, DC
PublisherOptical Society of America (OSA)
ISBN (Print)155752033X
Publication statusPublished - 1988


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