Synthesis and Nonlinear Optical Properties of 1,3,5-Tricyano-2,4,6-tris2-(thiophen-2-yl)vinylbenzene Derivatives

摘要

1,3,5-Tricyano-2,4,6-tris2-(thiophen-2-yl)vinylbenzene derivatives have been synthesized as a new type of octupolar nonlinear optical molecules and their linear and nonlinear optical properties were determined. The ル max values increased with the conjugation length and as the conjugation bridge was changed from phenyl to thienyl group. For phenyl and thiophene derivatives, the b value increased with conjugation length. In contrast, the モ values of the thiophene derivatives were much smaller than the corresponding phenyl derivatives.