Dipolar NLO‐phores with large off‐diagonal components of the second‐order polarizability tensor

Abstract

A new class of nonlinear optical chromophores (NLO‐phores) with large off‐diagonal components of the second‐order polarization and remarkable transparency properties have been investigated. The synthesis and NLO characterization of a series of C 2n symmetry benzene derivatives, such as that shown in the Figure, are described. The results of UV‐vis, EFISH, hyper‐Rayleigh scattering, etc., measurements are compared. magnified image