Effect of Substituents on the Equilibrium between Trans and Perpendicular Conformers in the Triplet Excited State of Substituted Styrylpyrenes
- 1 May 1993
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 22 (5) , 833-836
- https://doi.org/10.1246/cl.1993.833
Abstract
In the equilibrium between trans (3t*) and perpendicular (3p*) conformers in the triplet excited state of 1-styrylpyrenes, substitution by electron-accepting groups at the para-position of styryl group more effectively stabilizes 3t* than 3p*, therefore affording very high composition of their trans isomers at the photostationary state.Keywords
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