Molecular polarizability: the anisotropy of the -N=N- group

Abstract

Consideration of molar Kerr constants, dielectric polarizations, etc., now found for azoethane and azoisopropane as solutes in benzene, leads to the conclusions that the polarizability ellipsoid for the N=N group has semi-axes (in 10^-23 C.O. units) as follow: b_L^N:N = 0.28₅, b_T^N:N = 0.10₀, and b_V^N:N = 0.07₉. No photo-isomerism can be recognized with azoisopropane analogous to that which is well known with azo-aryls.