Time Resolved Resonance Raman Study of S1 cis-Stilbene and its Deuterated Isotopomers

Autor: Kwok, W.M., Ma, C., Phillips, D., Beeby, A., Marder, T.B., Thomas, R.L., Tschuschke, C., Baranović, Goran, Matousek, Pavel, Towrie, M., Parker, A.W.
Jazyk: angličtina
Rok vydání: 2003
Předmět:
Popis: We present the picosecond time-resolved resonance Raman (ps-TR3) spectra of the first excited singlet state (S1) of cis-stilbene (d0), fully deuterated cis-stilbene (d12) and  - ’ -d2-cis-stilbene (d2) measured in n-hexane at pump and probe wavelengths 267 and 630 nm, respectively. The main observation is that in the lower wavenumber region the spectra are dominated by a 2nd order overtone progression originating from a 229 cm-1 fundamental band for the S1 d0 cis-stilbene. The observed low-wavenumber modes of the excited cis-stilbene are substantially more resonantly enhanced than the modes around 1600 cm-1.
Databáze: OpenAIRE