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两种新型镍、钴配合物的合成及结构

Syntheses and Crystal Structures of Two Novel Nickel and Cobalt Complexes
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摘要 以2,2'-二吡啶胺(Hdpa)和对硝基苯甲酸(PNBA)为原料,分别和氯化镍、氯化钴反应合成了两种新型的镍、钴配合物[Ni(Hdpa)_2(PNBA)](H_2O)Cl(1)、[Co(Hdpa)_2(PNBA)(CH_3OH)](CH_3OH)Cl(2),并通过扩散法得到了两种配合物的晶体。通过X-射线单晶衍射、元素分析对配合物进行了结构表征。晶体结构表明:这两种配合物为异构的阳离子-阴离子型化合物。两个配合物均含有两个二吡啶胺配体、一个对硝基苯甲酸阴离子配体和一个抗衡阴离子Cl^-,但对硝基苯甲酸中羧基的配位方式却不同。配合物(1)的结构基元还含有一个游离的水分子,配合物(2)的结构中则含有两个甲醇分子,一分子参与配位而另一分子处于游离状态。 With 2,2'- dipyridylamine,4 -nitrobenzoic acid and nickel chloride or cobalt chloride respectively as raw materials, two novel complexes with the formula of [ Ni ( Hdpa)2 (PNBA) ] ( H2 O) CI ( 1 ), [ Co ( Hdpa)2 (PNBA) ( CH3 OH) ] ( CH3 OH) Cl (2) , were synthesized and the single crystals were obtained by diffusion method. The complexes were characterized by elemental analysis and single crystal X - ray diffraction analysis. Single crystal structures show that the geometries of the two complexes are isomerism and they are cation - anion species. Both complexes contain two 2,2'- dipyridylamine ligands, one 4 - nitrobenzoic anion ligand and one counter - anion Cl -, but the coordination mode of carboxyl ligand was different. Complexes ( 1 ) also contains one free water molecule and complexes (2) contains two methanol molecules, one methanol molecule involved in coordination and the other is in the free state.
出处 《山东化工》 CAS 2017年第15期39-40,42,共3页 Shandong Chemical Industry
关键词 配合物 晶体结构 配位方式 complex crystal structure coordination mode
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