| 3-羧基苯氧乙酸构筑的Cd(Ⅱ)配位聚合物的合成、晶体结构及荧光性质 |
| Synthesis, Crystal Structure and Luminescent Properties of a Cd(Ⅱ) Coordination Polymer Constructed by 3-Carboxyphenoxyacetatic Acid |
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| 摘要: 通过水热方法,采用3-羧基苯氧乙酸(3-H2CPOA=3-carboxyphenoxyacetatic acid)和phen(phen=1,10-phenanthroline)与Cd(OAc)2·2H2O反应,合成了一个具有一维双链结构的配位聚合物[Cd(3-CPOA)(phen)]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聚合物的晶体属于单斜晶系,C2空间群.2个镉(Ⅱ)离子、2个3-CPOA2-配体和2个phen配体形成了1个[Cd2(3-CPOA)2(phen)2]环,这些环通过镉(Ⅱ)离子与3-CPOA2-配体的配位作用形成了1个一维双链结构.链与链之间又通过C-H…O氢键作用形成了1个三维的配位框架.研究表明,该聚合物在室温下能发出很强的蓝色荧光. |
| 关键词: 配位聚合物 镉(Ⅱ)配合物 氢键 荧光性质 |
| 基金项目: 太原科技大学研究团队资助项目. |
| Abstract: A coordination polymer, namely [Cd(3-CPOA)(phen)]n (1) has been constructed hydrothermally using 3-H2CPOA (3-H2CPOA=3-carboxyphenoxyacetatic acid), phen (phen=1,10-phenanthroline) and Cd(OAc)2·2H2O. The complex crystallizes in the monoclinic system, space group C2 with a=1.575 3(7) nm, b=1.035 4(5) nm, c=1.133 9(5) nm, β=97.806(4)°, V=1.832 3(15) nm3, Dc=1.764 g·cm-3, Z=4, R=0.020 4 and wR=0.039 7 (I>2σ(I)). Two Cd(Ⅱ) atoms, two CPOA2- ligands and two phen ligands form a [Cd2(CPOA)2(phen)2] ring. The rings are connected by the coordination interactions of CPOA2- ligands and Cd(Ⅱ) ions to generate a 1D double-chain, which are further extended into a 3D metal-organic supramolecular framework by C-H…O hydrogen bond interactions. Luminescent studies show that complex 1 displays strong blue emission at room temperature. CCDC: 853932. |
| Keywords: coordination polymer cadmium(Ⅱ) complex hydrogen bond luminescent properties |
| 投稿时间：2012-12-01 修订日期：2012-06-03 |
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| 高竹青,李红晋,顾金忠.3-羧基苯氧乙酸构筑的Cd(Ⅱ)配位聚合物的合成、晶体结构及荧光性质[J].无机化学学报,2012,28(12):2655-@. |
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