H. Hamaguchi, H. Okamoto, M. Tasumi
Jun 8, 1984
Citations
0
Influential Citations
32
Citations
Journal
Chemical Physics Letters
Abstract
Transient Raman studies of isomeric retinals reveal that the photoexcitation and subsequent intersystem crossing results (except for 13-cis) in an identical relaxed triplet species which gives exclusively the all-trans conformer in the ground state. The 13-cis isomer yields another relaxed triplet species. A scheme for the mechanism of the isomerization in T 1 is proposed in which the cis-trans partitioning takes place in the vibrationally, excited levels of the cis T 1 manifold and in which an efficient intersystem crossing occurring in these levels plays an essential role.