超分子化合物[UO2Cl4][phenH]2的合成、晶体结构、荧光性质及[UO2Cl4][phenH]2/PVA薄膜的发光性能(英文)

Synthesis,Characterization and Luminescent Properties of [UO_2Cl_4]_2 and Its Polyvinyl Alcohol Cast Film

水热条件下合成了一种含铀的超分子化合物[UO2Cl4][phenH]2(phen=1,10-邻菲罗啉),进行了X射线单晶衍射、红外光谱、紫外光谱和荧光光谱分析。晶体结构分析表明,该化合物由2个[phenH]+阳离子和1个阴离子[UO2Cl4]2-组成。红外光谱和X射线单晶衍射表明,标题化合物的三维框架是由N H Cl、C H Cl和C H O弱氢键相互作用所构建。中心U原子是六配位,有4个Cl原子和2个O原子。此外,没参与配位的phen利用氢键和π…π堆积与[UO2Cl4]2-相互作用。含U原子的阴离子是一种扭曲八面体结构。利用溶胶-凝胶法合成了化合物的PVA薄膜。标题化合物和薄膜均有较强的荧光性。

A uranyl-containing supramolecular compound [UO2Cl4]2（phen=1,10-phenanthroline） has been synthesized under hydrothermal condition and characterized by X-ray single-crystal analysis,IR,UV and fluorescence spectrum.Crystal structural analysis indicates that it consists of two ＋ and one heteropolyanion of [UO2Cl4]2-in the asymmetric unit.The results of IR spectra and X-ray single crystal diffraction reveal that the title complex present a 3D framework built up by NHCl,CHCl and CHO weak hydrogen bonds interactions.The central uranium atom has a distorted octahedral environment and is coordinated by four Cl atoms and two O atoms.In addition,there are also uncoordinated protonated 1,10-phenanthroline bonded by hydrogen bonds and ππ stacking interactions,which is rarely observed in previous reports.Its polyvinyl alcohol（PVA） film was casted by a sol-gel process and characterized by IR,UV and fluorescence spectrum.Both the title compound and its film show strong fluorescence.CCDC：713149