TY - JOUR
T1 - Evidence that irreversible intramolecular vibrational energy redistribution is slow for ring modes up to 8200 cm-1 in S0 benzene
AU - Nicholson, Joanne A.
AU - Lawrence, Warren D.
PY - 1995/4/13
Y1 - 1995/4/13
N2 - High-resolution dispersed fluorescence spectra have been used to probe intramolecular vibrational energy redistribution (IVR) for ring vibrations in S0 benzene up to ≈ 8200 cm-1. 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-1, corresponding to rate constants < 4.7 × 1010 s-1 (τIVR > 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.
AB - High-resolution dispersed fluorescence spectra have been used to probe intramolecular vibrational energy redistribution (IVR) for ring vibrations in S0 benzene up to ≈ 8200 cm-1. 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-1, corresponding to rate constants < 4.7 × 1010 s-1 (τIVR > 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.
UR - http://www.scopus.com/inward/record.url?scp=0000136103&partnerID=8YFLogxK
U2 - 10.1016/0009-2614(95)00222-P
DO - 10.1016/0009-2614(95)00222-P
M3 - Article
AN - SCOPUS:0000136103
SN - 0009-2614
VL - 236
SP - 336
EP - 342
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 3
ER -