Hyperpolarizability contributions to Kerr effect in liquids

Abstract

Hyperpolarizability contributions to the electro-optic Kerr effect are calculated for six non-polar organic liquids by subtracting the Gans' theory value from the experimental value. Mean second molecular hyperpolarizabilities calculated in this way agree with other estimates. The bond-additivity approximation for mean second hyperpolarizabilities is approximately verified for molecules in the n-alkane series, and the bond values are estimated.