双肟钴(Ⅱ)配合物的合成及晶体结构(英文)
Synthesis and Crystal Structure of a Bisoxime Cobalt(Ⅱ) Complex
作者单位
董文魁 兰州交通大学化学与生物工程学院兰州 730070 
王 莉 兰州交通大学化学与生物工程学院兰州 730070 
孙银霞 兰州交通大学化学与生物工程学院兰州 730070 
同军锋 兰州交通大学化学与生物工程学院兰州 730070 
吴健超 兰州交通大学化学与生物工程学院兰州 730070 
摘要: 利用螯合双肟配体H2L(H2L=4,4′-二硝基-2,2′-[1,2-亚乙基二氧双(氮次甲基)]二酚)合成了1个三核钴(Ⅱ)配合物[Co3(OAc)2(CH3OH)2L2]·2CH3CN,并用X-射线单晶衍射分析确定了其晶体结构。配合物晶体属三斜晶系,P1 空间群,由3个Co(Ⅱ)离子、2个四齿的L2-单元、2个配位的乙酸根、2个配位的甲醇分子和2个结晶的无序乙腈分子组成,其几何构型为稍微扭曲的八面体,且配合物通过分子间C-H…O氢键形成了1种二维超分子结构。
关键词: 双肟配体  钴(Ⅱ)配合物  合成  晶体结构
基金项目: 
Abstract: A trinuclear Co(Ⅱ) complex, [Co3(OAc)2(CH3OH)2L2]·2CH3CN, was synthesized with Salen-type bisoxime ligand 4,4′-dinitro-2,2′-[1,2-ethylenedioxybis(nitrilomethylidyne)]diphenol (H2L), and characterized by elemental analyses, IR spectra and X-ray diffraction method. X-ray single crystal structure analysis reveals that the complex crystallizes in the triclinic system, space group P1 with cell parameters: a=0.992 80(8) nm, b=1.084 4(1) nm, c=1.360 4(1) nm, α=73.655(2)°, β=69.847(1)°, γ=73.026(2)°, Z=1, V=1.288 1(2) nm3, R1=0.054 4, wR2=0.163 5. In the Co(Ⅱ) complex, there are two L2- moieties (which provide N2O2 donors), two acetate ions, two coordinated CH3OH molecules and two non-coordinated disordered CH3CN molecules, which result in the formation of octahedral geometries around the Co(Ⅱ) atoms. And every title compound molecule links four other molecules into an infinite 2D-layer supramolecular structure via intermolecular C-H…O hydrogen bond interactions. CCDC: 780294.
Keywords: bisoxime ligand  cobalt(Ⅱ) complex  synthesis  crystal structure
 
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董文魁,王 莉,孙银霞,同军锋,吴健超.双肟钴(Ⅱ)配合物的合成及晶体结构(英文)[J].无机化学学报,2011,27(2):372-376.
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