Journal of the American Chemical Society p. 3082 - 3086 (1990)
Update date:2022-07-30
Topics:
Sandros, Kjell
Sundahl, Mikael
Wennerstr?m, Olof
Norinder, Ulf
The mechanism of the Z/E photoisomerization of a p-styrylstilbene has been studied by steady state and time-resolved fluorescence measurements combined with isomerization quantum yield determinations. It was found that on excitation of the Z,Z isomer both the isomers, Z,E and E,E, are produced initially, mainly by adiabatic processes on the singlet excited surface. Quantum mechanical calculations give surface profiles supporting the adopted mechanism.
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