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The predissociation of CS2 at 210 nm and the spectra of photofragment CS

✍ Scribed by Huei Tarng Liou; Peilin Dan; Tsung Yen Hsu; Howard Yang; Huai Mere Lin

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 325 KB
Volume: 192
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85516-d

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✦ Synopsis

The I B 2 (lieu+) state of CS2 at 210 nm was studied using jet-cooled laser-induced fluorescence and dispersed spectra. The lifetime of the IB2(I]~+ ) state at 210 nm was deduced from the transition linewidth to be 4.4 ps. Hot bands of photofragment CS (A q-l,-X ~E + ) transitions up to v" = 6 were observed indicating large vibrational excitation occurring in the photodissociation of CS2. The fluorescence yield from the E~ band of the 'B2 state, located at 47562 cm-~, was observed from 205 to 550 nm. The fluorescence with wavelength shorter than the excitation wavelength results from the photofragment CS (v" = l, 2, 3) absorbing a photon sequentially in the photodissociation of C52. The dispersed pattern exhibits four intensity maxima which result from a complex mixture of states at 210 nm excitation.

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