Octupolar Crystals for Nonlinear Optics: 1,3,5-Trinitro-2,4,6-tris(styryl)benzene Derivatives

Abstract

1,3,5-Trinitro-2,4,6-tris(styryl)benzene derivatives 1−3 were synthesized and their optical properties, first hyperpolarizabilities (β), powder SHG efficiencies, and Td, were determined. They exhibited significant β [β(0) = (24−89) × 10-30 esu] and powder SHG values [M/MmNA = 0.2−5.8] as well as high thermal stabilities ( = 210−310 °C).