【作者】 杨秀红； 杨明星； 陈丽娟； 林深；

【Author】 Xiuhong Yang;Mingxing Yang;Lijuan Chen;Shen Lin;College of Chemistry and Chemical Engineering,Fujian Normal University;

【机构】 福建师范大学化学与化工学院；

【摘要】 含有N、O原子的多齿芳香羧酸配体(如吡啶羧酸、吡嗪羧酸及咪唑羧酸等)因其具有较强的配位能力和灵活的、多样化的配位模式而广泛用于结构新颖、功能性MOFs的定向组装。然而迄今为止,对3-(3,5-二羧基苯基)吡啶-5-羧酸过渡金属配合物的研究尚未见报道。本文以NiSO4·6H2O与3-(3,5-二羧基苯基)吡啶-5-羧酸(H3L)为原料,合成了一个镍配位聚合物[Ni3L2(H2O)12]·6H2O。X-射线单晶衍射实验结果解析表明:该化合物中镍原子(Ni1和Ni2)与配体配位形成以[Ni2L2]为单元的一维之字链,链与链之间再通过各自链中的羧基氧与Ni3配位形成二维阶梯状结构。更多还原

【Abstract】 Aromatic carboxylic acid ligands containing N and O atoms have been attracted attention owing to their strong ability of coordination and varieties coordination modes.Herein,a novel nickel coordination polymer with 5-(3’,5’-dicarboxylphenyl)-pyridine-3-carboxylic acid(H3L),[Ni3L2(H2O)12]·6H2O as a ligand has been synthesized and characterized.In title compound,each L3-ligands links Ni1,Ni2 ions to form a 1D [Ni2L2] zigzag infinite chain.The adjacent [Ni2L2] chains are further linked through Ni3 atom to generate an interesting 2D ladderlike structure.更多还原