Fluorescence from High Vibronically Excited Benzene: a "Channel Three" Problem
Open Access
- 1 December 1981
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 36 (12) , 1340-1343
- https://doi.org/10.1515/zna-1981-1213
Abstract
Gas phase benzene is excited by two-photon absorption at various pressures between 4 and 80 torr. Fluorescence is observed even from states located at excess energies of 3000 cm-1 - 7000 cm-1 , i.e. well above the onset of "channel three". The nonradiative decay rates as estimated from this fluorescence intensity continue the well known shortening of lifetime with excess energy in a monotone fashion and do not show a drastic cut-off as often concluded from previous line-width measurements.Keywords
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