Syntheses and Nonlinear Optical Properties of Tribenzamide Derivatives

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Other Title
  • トリベンズアミド誘導体の合成と二次非線形光学特性
  • Special Articles on Organic and Inorganic Optical Materials. Syntheses and Nonlinear Optical Properties of Tribenzamide Derivatives.

Abstract

To develop high SHG active materials with short cut-off wavelengths, “umbrella-shaped”tribenzamide derivatives were investigated. Crystals of these umbrella type materials are expected to show molecular columns due to van der Waals interactions. Tribenzamide ( 1)gave a powder SHG efficiency 1.5 times that of urea, and itsλis 330 nm in methanol. In the β calculation of 1 by the ab initio STO-3 G CPHF method, the β component of the direction along umbrella shaft was the largest. However in the crystal state, the component disappeared due to antiparallel alignment of packing columns. In other para-substituted tribenzamide derivatives with methyl and methoxy substituents, only two compounds showed SHG efficiency.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1992 (10), 1261-1263, 1992-10-10

    The Chemical Society of Japan

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