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二茂铁亚甲基三氮唑配合物的合成、晶体结构及性能研究
Syntheses,Crystal Structures and Properties of[(1H-1,2,4-Triazol-1-yl)methyl]ferrocene Complexes
【摘要】 通过配体二茂铁亚甲基三氮唑与金属离子的自组装,得到了两个新的二茂铁基功能配合物:[Cd(tmf)2(SCN)2]n(1)和[Ni(tmf)4(SCN)2](2)(tmf=二茂铁亚甲基三氮唑).其中,配合物1呈一维链状结构;配合物2是一个通过氢键作用而形成的二维超分子.三阶非线性光学性质测试结果表明,配合物1(n2=2.11×10-11esu)和2(n2=1.92×10-11esu)的三阶非线性光学折射效应与配体tmf(n2=2.49×10-11esu)接近,说明配合物1和2的三阶非线性光学性质主要受配体控制.循环伏安法(CV)测试结果显示,这两个配合物在电极上的氧化还原过程是受扩散控制的.计时电流法(CA)和计时电量法(CC)测得配合物1的扩散系数比配合物2的扩散系数小.
【Abstract】 Two new complexes Cd(tmf)2(SCN)2 n(1) and Ni(tmf)4(SCN)2(2) have been synthesized by self-assembly of ligand(1H-1,2,4-triazol-1-yl)methyl ferrocene(tmf),SCN-anion and Cd(Ⅱ) or Ni(Ⅱ) cation.X-ray crystal diffraction analysis reveals that complex 1 displays a one-dimensional double chain structure and complex 2 is a two-dimensional supramolecule formed by hydrogen bonds.The results of the third-order nonlinear optical(NLO) experiments display that the n2 values of complex 1(2.11×10-11 esu) and 2(1.92×10-11 esu) are close to that of tmf(2.49×10-11 esu),indicating that the third-order NLO prop-erties of complexes 1 and 2 are ruled by tmf ligand.The cyclic voltammetry studies suggest that the redox processes of complexes 1 and 2 at the electrode are controlled by diffusion.The results of chronoamperome-try and chronocoulometry show that the values of the diffusion coefficient(D) of complex 1 is smaller than that of complex 2.
【Key words】 cadmium; nickel; ferrocenyl complex; crystal structure; third-order nonlinear optical property; electrochemical property;
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,2008年07期
- 【分类号】O641.4
- 【被引频次】13
- 【下载频次】415