期刊
CHEMISTRY OF MATERIALS
卷 18, 期 18, 页码 4259-4269出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm0601887
关键词
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The synthesis of several new truxenones and one tris( dicyanomethylene) derivative substituted by different amines at positions 4, 9, and 14 is reported. A complete characterization of the NLO properties of representative derivatives was carried out by hyper-Rayleigh scattering; the major electronic effects and the influence of the structural modifications on the NLO properties have been examined. Because of their C-3 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.
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