Molecular structures in the excited states of 2-and 4-benzylpyridine

Raman excitation profiles of several normal vibrations of 2- and 4-benzylpy ridine were measured and analyzed. On the basis of the results, possible st ructures and other interesting properties of the two molecules in the excit ed electronic states are discussed. Normal mode characteristics are also de scribed. It seems likely that a singlet state, lying in the vacuum ultravio let region with respect to the ground state, plays a significant role in th e scattering phenomena. Copyright (C) 1999 John Wiley & Sons, Ltd.