The 157 nm Photodissociation of OCS

Authors

C. E. Strauss, Cornell University
George C. McBane, Grand Valley State UniversityFollow
P. L. Houston, Cornell University
I. Burak, Tel Aviv University
J. W. Hepburn, University of Waterloo

Disciplines

Biological and Chemical Physics

Abstract

The photodissociation of OCS at 157 nm has been investigated by using tunable vacuum ultraviolet radiation to probe the CO and S photoproducts. Sulfur is produced almost entirely in the ¹S state, while CO is produced in its ground electronic state and in vibrational levels from v=0-3 in the appropriate ratio (v=0):(v=1):(v=2):(v=3) = (1.0):(1.0):(0.5):(0.3). The rotational distribution for each vibrational level is found to be near Boltzmann, with temperatures that decrease from 1350 K for v=0 to 780 K for v=3. Measurements of the CO Doppler profiles demonstrate that the dissociation takes place from a transition of predominantly parallel character (β=1.8±0.2) and that the CO velocity and angular momentum vectors are perpendicular to one another.

Original Citation

Strauss, C. E., McBane, G. C., Houston, P. L., Burak, I., & Hepburn, J. W. (1989). The 157 nm photodissociation of OCS. The Journal of Chemical Physics, 90(10), 5364–5372. https://doi.org/10.1063/1.456443

ScholarWorks Citation

Strauss, C. E.; McBane, George C.; Houston, P. L.; Burak, I.; and Hepburn, J. W., "The 157 nm Photodissociation of OCS" (1989). Peer Reviewed Articles. 4.
https://scholarworks.gvsu.edu/chm_articles/4