具有一维孔道的配位聚合物[{NaCd4(IDC)3(prz)}·3H2O]n的合成、晶体结构及性质研究(英文) |
Synthesis, Crystal Structure and Luminescent Properties of Coordination Polymer [{NaCd4(IDC)3(prz)}·3H2O]n with 1D Channels |
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摘要: 通过水热方法,采用H3IDC(H3IDC=imidazole-4,5-dicarboxylic acid)、prz (prz=piperazine)与Cd(NO3)2·4H2O反应,合成了具有一维孔道的配位聚合物[{NaCd4(IDC)3(prz)}·3H2O]n (1),并对其结构和荧光性质进行了研究。结构分析结果表明该化合物属于单斜晶系,Cc空间群。其结构单元中含有4个独立的Cd原子。3个Cd原子形成一个小环,6个Cd原子形成一个大环。这些环通过IDC3-和Cd(Ⅱ)的配位作用,进一步连接产生了含一维孔道的配位聚合物。孔道内含有大量水分子和Na+离子。研究表明,该配合物在室温下能发出很强的兰色荧光。 |
关键词: 孔洞结构 配位聚合物 一维孔道 荧光性质 |
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Abstract: A 3D coordination polymer with 1D channels of [{NaCd4(IDC)3(prz)}·3H2O]n(1) (H3IDC=imidazole-4,5-dicarboxylic acid, prz=piperazine) was hydrothermally synthesized, and characterized by single-crystal X-ray diffraction. The crystal belongs to monoclinic system, space group Cc. There are four crystallographically independent Cd(Ⅱ) ions in the crystal lattice. Three Cd(Ⅱ) atoms form a small ring, and six Cd(Ⅱ) atoms form a large ring. The rings are further connected by the coordination interactions of IDC3- and Cd(Ⅱ) to generate a novel 3D frameworks containing 1D hexagonal channels, which is occupied by water molecules and Na+ ions. The compound displays strong blue fluorescent emission at room temperature. CCDC: 688709. |
Keywords: porous structure coordination polymer 1D channel luminescent properties |
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顾金忠,高竹青,窦 伟,谭民裕.具有一维孔道的配位聚合物[{NaCd4(IDC)3(prz)}·3H2O]n的合成、晶体结构及性质研究(英文)[J].无机化学学报,2009,25(9):1663-1667. |
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