✦ LIBER ✦
Evidence that irreversible intramolecular vibrational energy redistribution is slow for ring modes up to 8200 cm−1 in S0 benzene
✍ Scribed by Joanne A. Nicholson; Warren D. Lawrence
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 508 KB
- Volume
- 236
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
High-resolution dispersed fluorescence spectra have been used to probe intramolecular vibrational energy redistribution (IVR) for ring vibrations in S o benzene up to ~-8200 cm-a. All bands monitored show sharp structure (= 1 cm 1 fwhm) with resolved rotational features. An upper limit to the contribution from irreversible IVR to these linewidths is 0.5 cm a, corresponding to rate constants < 4.7 X 1010 S-1 (,rlVR > 21 ps). The ring mode linewidths appear to be narrower than CH stretch overtone linewidths at comparable energies, indicating that irreversible IVR is slower for ring modes.