Premium
Theory of Direct Photoisomerization of Stilbene
Author(s) -
Paerschke H.,
Süsse K.E.,
Welsch D.G.
Publication year - 1979
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19794910202
Subject(s) - photoisomerization , photochemistry , singlet state , excitation , triplet state , spectroscopy , fluorescence , physics , excited state , chemistry , isomerization , atomic physics , optics , quantum mechanics , catalysis , biochemistry
A microscopic model for describing the direct trans‐cis photoisomerization of stilbene is developed and an interpretation of the experimental results found from time‐resolved fluorescence and absorption spectroscopy of stilbene in solution is given. According to this model the photoisomerization of trans‐stilbene is proposed to involve the radiationless transition from the trans singlet state S 1 (trans), prepared by direct optical excitation, into the perp singlet state S 1 (perp) and the radiationless decay of this state into the quasi‐isoenergetic trans triplet state T 4 (trans).