Kerr constants and steric structure of acetylenic thio- and selenoethers

Abstract

1. The axes of the polarizability ellipoids of the Csp-S and Csp-Se bonds were determined. 2. The steric structure of a number of acetylenic thio- and selenoethers p-XC6H4E-C≡CC6H5 was studied. The benzene ring attached to the triple bond is located in the plane of the {Mathematical expression} bonds, while the aromatic fragment attached to the heteroatom (S or Se) lies outside this plane by ∼30-40°. © 1979 Plenum Publishing Corporation