W0214

Structural Studies of Organic Chromophore Compounds as Potential Materials in Non-Linear Optics. Mikhail Yu. Antipin^1,2, Tatiana V. Timofeeva¹, Vladimir N. Nesterov¹, Donald O. Frazier³, Benjamin G. Penn³, ¹Dept. of Natural Sciences, New Mexico Highlands Univ., Las Vegas, NM 87701, USA, ²Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Russia, ³NASA G.C. Marshall Space Flight Center, Huntsville, AL 35812, USA.

A several dozens of organic chromophore compounds, based on numerous derivatives of dicyanovinylbenzene and its analogs including heterocyclic derivatives, N,N-dimethyl-4-nitroaniline derivatives, Schiff bases, naphthoquinone compounds, compounds with azo-polyene fragments, and others have been synthesized and studied as potential non-linear optical materials for the second harmonic generation, electrooptical, photorefractive, optical limiting, and two-photon absorption applications. Single crystal X-ray diffraction analysis, molecular and crystal structure modeling, quantum calculations, study of polymorphism, optical properties, and experimental measurements of the non-linear optical responses have been done for most compounds. These data allowed one to establish some important "structure-property" relations, and to find some new and prospective compounds for further studies and application as non-linear optical materials.