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采用相转移Witig反应合成了5种二茂铁金属有机化合物,对它们进行了红外光谱、紫外光谱、元素分析、核磁共振的表征,研究了分子的结构和二阶非线性光学性质。研究表明该类化合物具有较高的分子二阶非线性极化率,作为给体和受体的推拉电子取代基的存在和扩大共轭范围都对增大二阶光学非线性有利。
Five kinds of ferrocene metal organic compounds were synthesized by phase-transfer Witig reaction. Their structures were characterized by IR, UV, elemental analysis and nuclear magnetic resonance. The structures and the second-order nonlinear optical properties were studied. Studies have shown that these compounds have higher second-order nonlinear polarizabilities, and the presence of push-pull electron donors as donors and acceptors and the enlargement of the conjugate range all contribute to the enhancement of second-order optical nonlinearity.