Synthesis of two-photon LC materials

A number of derivatives of distyrlbenzene, having a high cross section for two-photon absorption, are synthesized. Gradual variations in design are ca rried out to understand the structure-activity correlation and to bring in liquid crystalline nature. The goal is to synthesize liquid crystals with h igh nonlinear absorption, specifically two-photon absorption, so they can b e used as optical shutters and laser hardening materials.