一维链状钴(Ⅱ)和锰(Ⅱ)配合物的合成及结构表征  

Synthesis and Crytal Structure of Co(Ⅱ) and Mn(Ⅱ) Complexes with One-dimensional Chain Structure

作　　者：张奇龙[1] 戴美碧[1] 朱兴城[1] 朱必学[1] 

机构地区：[1]贵州省大环化学及超分子化学重点实验室,贵阳550025

出　　处：《无机化学学报》2008年第11期1864-1868,共5页Chinese Journal of Inorganic Chemistry

基　　金：教育部"春晖计划"项目;贵州省国际合作重点资助项目(No.20066026)

摘　　要：本文以乙酰丙酮和1R,2R-环己二胺进行缩合得到N,N′-双(乙酰丙酮)-1R,2R-环己二胺的Schiff碱配体L,再分别同CoCl2·6H2O和MnCl2·4H2O进行配位反应,得到了2个配合物[CoLCl2]n(1)和[MnLCl2(C2H5OH)·H2O]n(2),并用元素分析,FTIR和X-射线单晶结构分析进行了表征。配合物1和2的晶体均属于正交晶系,空间群分别是Fddd和P212121。在化合物1中,每个Co髤的配位环境均为扭曲四面体,在化合物2中,每个Mn髤的配位环境都是三角双锥。2个配合物中每个配体L通过其两臂乙酰丙酮亚胺单元的端基氧原子同2个金属离子配位桥联形成一维螺旋链结构。The Schiff base ligand L [N,N′-bis（acetylacetone）-1R,2R-diaminocyclohexane] was synthesized from condensation reaction of 1R,2R-diaminocychohexane with acetyacetone. COCl2·6H2O and MnCl2 ·4H2O react, respectively with L to give two complexes [CoLCl2]n （1） and [MnLCl2（C2H5OH）·H2O]n （2）, and they were characterized by elemental analysis, FTIR and X-ray diffraction single-crystal structure analyses. The results of structural analysis indicate that both complexes crystallize in the orthorhombic, space group Fddd and P212121 for 1 and 2, respectively. The coordination environment of Co（Ⅱ） is a distorted tetrahedron, and that of Mn（Ⅱ） is a trigonal bipyramid. In the two complexes, each L ligand links two metal atoms using two terminal oxygen atom from aeacH-imine units belonging to two L ligands to generate a helical one-dimensional （1D） chain structure. CCDC： 688744, 1; 688743, 2.

关 键 词：乙酰丙酮 1R 2R-环己二胺 配合物 晶体结构 

分 类 号：O614.711[理学—无机化学] O614.338[理学—化学]