水热条件下合成了一种含铀的超分子化合物[UO:Cl4][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[UO:Cl4]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 ] [phenH] 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 [phenH] ＋ 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 N-H…CI, C-H…CI and C-H…O 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 π…π 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.
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