A hemicyanine dye containing an amphiphilic rare earth complex anion 4-[(4-N,N’-(diethyl amino) phenyl) ethenyl]-1-hexadecyl-pyridinnium-Tri (1-phenyl-3-methylbeen designed, synthesized and characterized. Its floatin...
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A hemicyanine dye containing an amphiphilic rare earth complex anion 4-[(4-N,N’-(diethyl amino) phenyl) ethenyl]-1-hexadecyl-pyridinnium-Tri (1-phenyl-3-methylbeen designed, synthesized and characterized. Its floating monolayer film was spread bya dilute cliloroform solution onto the pure water subphase by using a NIMA TechnologyLB Though at room temperature. The π-A isotherm shows that the film formation property is improved and the multilayer films are homogeneous. The molecular second orderhyperpolarizability(β) is evaluated to be 5.4× 10-28e.s.u. which is one of largest SHG material reported.
由于在光通讯、光计算机、光能转换等方面的应用前景,合成有大的非线件光学材料是当前十分活跃的高技术领域.在有机物中,给体受体取代的偶氨化合物,由于它们具有很高的二阶非线性光学效应以及作为一类新的、有前景的电光材料而倍受重视.1988年Lupo等首次报道了有关芪唑盐(C_(16)H_(33))_2NC_6H_4CH=CHC_5H_4N^+CH_3I^-的LB膜研究,结果表明它是一种具有高二阶非线性光学极化率的有机分子,其β值为2 X 10^(-27)(esu)。
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