Low-Temperature Photochemistry of Previtamin D: A Hula-Twist Isomerization of a Triene
- 2 March 1998
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition in English
- Vol. 37 (4) , 505-507
- https://doi.org/10.1002/(sici)1521-3773(19980302)37:4<505::aid-anie505>3.0.co;2-u
Abstract
What is the standard course of the cis – trans isomerization of nonpolar polyenes? Many results support a pathway in which only a central CH group rotates out of the plane, while the remaining parts of the molecule reorient within the plane (“hula-twist” mechanism). The intermediate structure through which the molecule passes corresponds to the geometry predicted for the conical intersection of the S1 and S0 potential energy surfaces (see picture).This publication has 0 references indexed in Scilit: