| 一种不对称Salamo-型螯合配体及其钴髤配合物：合成、表征与晶体结构 | |
| An Asymmetrical Salamo-Type Chelating Ligand with Its Cobalt(Ⅱ) Complex：Syntheses, Characterizations and Crystal Structures | |
| 摘要: 合成了一种不对称Salamo-型螯合配体4-氯-6'-甲氧基-2，2'-[乙二氧双（氮次甲基）]二酚（H2L）及其钴（Ⅱ）配合物[Co（L）（H2O）]，并通过元素分析、红外光谱、紫外-可见吸收光谱及X-射线单晶衍射方法对配体H2L及其配合物进行了表征。结果表明：配体属单斜晶系，P21/n空间群，配合物属正交晶系，Iba2空间群。配合物为单核结构，由1个Co（Ⅱ）离子和1个四齿的L2-配体单元和1个配位水分子组成，中心Co（Ⅱ）原子的配位数是5，且具有稍微扭曲的三角双锥几何结构，而配合物分子通过分子间C8-H8…Cl1氢键组装成1D链状的超分子结构。 | |
| 关键词: Salamo-型螯合配体 钴（Ⅱ）配合物 合成 晶体结构 超分子作用 | |
| 基金项目: 国家自然科学基金（No.21361015）、甘肃省高校科技支撑基金（No.212086）和兰州交通大学科技支撑基金（No.ZC2012003）资助项目。 | |
| Abstract: A salamo-type chelating ligand 4-chloro-6'-methoxy-2,2'-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol (H2L) and its complex [Co(L)(H2O)], have been synthesized and characterized by elemental analyses, IR spectra, UV-Vis spectra and X-ray single crystal diffraction method. The ligand crystallizes in the monoclinic system, space group P21/n with cell parameters: a=1.555 54(17) nm, b=0.470 55(5) nm, c=2.423 3(2) nm, β=106.108(2)°, Z=4, V=1.704 1(3) nm3, R2=0.055 3, wR2=0.063 3, and the Co(Ⅱ) complex crystallizes in the orthorhombic system, space group Iba2 with cell parameters: a=1.934 27(14) nm, b=2.497 20(19) nm, c=0.752 96(5) nm, Z=8, V=3.637 0(5) nm3, R2=0.045 4, wR2=0.083 9, the Co(Ⅱ) complex is mono-nuclear structure. The five-coordinated Co(Ⅱ) atom of the complex lies in the N2O2 coordination sphere of one bis-oxime ligand, and the Co(Ⅱ) atom of the complex has a slightly distorted trigonal bipyramid geometry, while the molecules also assemble to a 1D infinite chain-like supramolecular structure by intermolecular C8-H8…Cl1 hydrogen bond. CCDC: 940101,H2L; 940100, Co(Ⅱ) complex. | |
| Keywords: salamo-type ligand Co(Ⅱ) complex synthesis crystal structure supramolecular interaction | |
| 投稿时间：2014-03-13 修订日期：2014-04-27 | |
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| 董文魁,李刚,李翔,杨成娟,赵萌萌,董秀延.一种不对称Salamo-型螯合配体及其钴髤配合物：合成、表征与晶体结构[J].无机化学学报,2014,30(8):1911-1919. | |
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