| 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 |
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| 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(Ⅱ)的配位环境均为扭曲四面体，在化合物2中，每个Mn(Ⅱ)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。 |
| 关键词: 乙酰丙酮 1R，2R-环己二胺 配合物 晶体结构 |
| 基金项目: |
| Abstract: The Schiff base ligand L [N,N′-bis(acetylacetone)-1R,2R-diaminocyclohexane] was synthesized from con-densation reaction of 1R,2R-diaminocychohexane with acetyacetone. CoCl2·6H2O and MnCl2·4H2O react, respec-tively 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 acacH-imine units belonging to two L ligands to generate a helical one-dimensional (1D) chain structure. CCDC: 688744, 1; 688743, 2. |
| Keywords: acetylacetone 1R,2R-diaminocyclohexane complex crystal structure |
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| 张奇龙,戴美碧,朱兴城,朱必学.一维链状钴(Ⅱ)和锰(Ⅱ)配合物的合成及结构表征[J].无机化学学报,2008,24(11):1864-1868. |
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