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二维层状配位聚合物:[Ni(Hbic)_2]_n的合成、晶体结构和热分析

Analysis of synthesis,crystal structure and thermal of a novel two-dimension layered coordination polymer:[Ni(Hbic)_2]_n
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摘要 利用刚性配体1H-苯并咪唑-5-羧酸(H2bic)与Ni(NO3)2.6H2O,在水热条件下组装得到一个新颖的镍配位聚合物:[Ni(Hbic)2]n。X-射线晶体衍射结构解析表明:每个Ni()离子呈六配位扭曲的八面体构型,配体通过μ2-(η2-O,O-),N3和μ2-(η2-O,O-),N1 2种配位模式连接金属离子形成了波浪状的(4,4′)层结构,二维层通过氢键和π-π堆积作用形成了一个三维超分子。热分析结果表明配合物在410.0°C下是稳定的。 A novel coordination polymer,[Ni(Hbic)2]n,was obtained by assembly of rigid 1H-benzimidazole-5-carboxylic acid(H2bic) with Ni(NO3)2·6H2O under hydrothermal conditions.The analysis of the X-ray crystallographic shows that each Ni(Ⅱ) ion lies in a six-coordinated distorted octahedral environment,the complex molecules are linked by both μ2-(η2-O,O-),N1 and μ2-(η2-O,O-),and the N3 coordination modes of ligands to form cross-like wave(4,4′) layer structures,which are further stacked through interlayer hydrogen bonds and π-π stacking interactions in an offset fashion to form a 3D supramolecular structure.The result of TG analysis shows that the title complex is stable under 410.0 °C.
出处 《佛山科学技术学院学报(自然科学版)》 CAS 2010年第1期29-32,共4页 Journal of Foshan University(Natural Science Edition)
基金 广东省自然科学基金资助项目(7010404)
关键词 镍配合物 晶体结构 1H-苯并咪唑-5-羧酸 热分析 nickel complex crystal structure 1H-benzimidazole-5-carboxylic acid thermal analysis
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