4,5-二氰基咪唑构筑的锌(Ⅱ)、钴(Ⅱ)配合物的合成、晶体结构及荧光性质

摘要

Two novel metal-organic complexes {[Zn2(IMDN)4(H2O)3] ·(H2O)3}n (1) and [Co(IMDN)2(H2O)2]n (2) (HIMDN =2H-imidazole-4,5-dicarbonitrile) based on HIMDN have been synthesized by the method of normal temperature diffusion,and characterized by elemental analysis,FTIR,thermal gravimetric analysis and X-ray diffraction single-crystal structural analysis.The coordination environment of two Zn (Ⅱ) ions is different in 1.One Zn (Ⅱ) ion is four-coordinated and the other is six-coordinated.The central Co (Ⅱ) ion is six-coordinated in 2.Both complexes show one dimensional (1D) chain structure and connected by hydrogen bonds to form threedimensional structure.Moreover,the fluorescent property of complex 1 had been investigated in the solid state.CCDC:889348,1; 889349,2.%以4,5-二氰基咪唑(HIMDN)配体,用常温扩散法合成了2个新颖的金属-有机配合物{[Zn2(IMDN)4(H2O)3]·(H2O)3}n(1)和[Co(IMDN)2(H2O)2]n(2),并通过元素分析、红外分析、热重分析和X-射线单晶衍射对其进行了表征.结果表明配合物1中2个中心Zn(Ⅱ)离子的配位环境不同,一个是四配位,另一个是六配位.配合物2的中心钴(Ⅱ)离子为六配位.2个配合物都为一维链状结构,并且均通过氢键作用显示出三维结构.此外还研究了配合物1的荧光性质.