Synthesis and Characterization of New Truxenones for Nonlinear Optical Applications

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• 作者：Lionel Sanguinet ; Jarrod C. Williams ; Zhiyong Yang ; Robert J. Twieg ; Guilin Mao ; Kenneth D. Singer ; Greg Wiggers ; Rolfe G. Petschek
• 刊名：Chemistry of Materials
• 出版年：2006
• 出版时间：September 5, 2006
• 年：2006
• 卷：18
• 期：18
• 页码：4259 - 4269
• 全文大小：153K
• 年卷期：v.18,no.18(September 5, 2006)
• ISSN：1520-5002

文摘

The synthesis of several new truxenones and one tris(dicyanomethylene) derivative substituted bydifferent amines at positions 4, 9, and 14 is reported. A complete characterization of the NLO propertiesof representative derivatives was carried out by hyper-Rayleigh scattering; the major electronic effectsand the influence of the structural modifications on the NLO properties have been examined. Because oftheir C₃ symmetry and their large first hyperpolarizability, the chiral versions of the tris(dicyanomethylene)truxene derivatives are of interest for second-order nonlinear optics in uniaxially aligned chiral media.