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The anti-Stokes resonance Raman spectrum of photoexcited S1 trans-stilbene

✍ Scribed by P. Matousek; A.W. Parker; W.T. Toner; M. Towrie; D.L.A. de Faria; R.E. Hester; J.N. Moore

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 387 KB
Volume: 237
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00324-w

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✦ Synopsis

Anti-Stokes resonance Raman spectra of S 1 trans-stilbene have been measured for vibrational wavenumbers up to 1570 cm-1. Trans-stilbene in n-hexane was excited at 290-310 nm and probed at 580-620 nm, respectively, with 8 ps resolution. All the dominant bands seen in the Stokes spectrum of the S 1 state are also seen in the anti-Stokes spectrum. Some anti-Stokes bands, notably those at 1570, 1240, 1180, 980, 720 and 285 cm -1, decrease markedly in relative intensity on a 10 ps timescale, displaying dynamics similar to those observed for the changes in the band position and bandwidth of several features in the Stokes spectrum.

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