Development of Ultrafast Spectroscopy and Reaction Mechanisms Studied by the Observation of Ultrashort-Life Species and Transition States

Abstract

Based on the results of the present study, it is concluded that the first process in the photophysical dynamics in bR is the deformation of retinal configuration which decays within 30 fs near the C=N bond in the protonated Schiff base. It is followed by C=C stretching and then torsional motion of several periods around the C-13=Q(4) bond.