Anisotropy of the polarizability and steric structure of arylvinyl selenides and arylvinyl sulfides

Abstract

1. Molecules of arylvinyl selenides have a maximally conjugated planar s-trans structure, 2. The conformations of arylvinyl sulfides are determined by the ratio of the energies of conjugation and steric repulsion of atoms; the disturbance of coplanarity occurs on account of rotation of the aryl radicals. © 1976 Plenum Publishing Corporation.