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。
A coordination polymer, namely [Cd(3-CPOA)(phen)]n (1) has been constructed hydrothermally using 3-H2CPOA (3-H2CPOA=3-carboxyphenoxyacetatic acid), phen (phen=l,10-phenanthroline) and Cd(OAc)2·2H20. 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 CPOA^2- ligands and two phen ligands form a [Cd2(CPOA)z(phen)2] ring. The rings are connected by the coordination interactions of CPOA^2- 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.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2012年第12期2655-2659,共5页
Chinese Journal of Inorganic Chemistry
基金
太原科技大学研究团队资助项目
关键词
配位聚合物
镉(Ⅱ)配合物
氢键
荧光性质
coordination polymer
cadmium(Ⅱ) complex
hydrogen bond
luminescent properties