Laser flash photolysis of benzene. VII. Fluorescence decay in the channel 3 region

Abstract

The benzene vibronic level 7101611120 (Q12), which lies about 2000 cm−1 above the channel 3 threshold, was selectively pumped with tunable UV laser radiation. The resulting single vibronic level fluorescence was exponential with a lifetime of 42±10 ps. A small amount of fluorescence from the thermalized S1 level was also detected.