晶态配合物荧光材料[Ni(3,5-(SO_3)_2CatH_2)(phen)_2(H_2O)]·4H_2O的合成、结构及性质

Synthesis,Structure and Property of Fluorescence Material of Crystalline Complex [Ni(3,5-(SO_3)_2CatH_2)(phen)_2(H_2O)]·4H_2O

利用缓慢蒸发溶剂法合成了单核镍(Ⅱ)配合物[Ni(3,5-(SO3)2CatH2)(phen)2(H2O)]·4H2O(CatH2=1,2-二羟基苯,phen=1,10-邻菲罗啉)。利用X-射线单晶衍射、元素分析、红外光谱、热重分析和荧光光谱等对其进行了表征。结果表明,该配合物属于三斜晶系,P1空间群。镍离子与一个1,2-二羟基苯-3,5-二磺酸根离子、两个1,10-邻菲罗啉配体和一个水分子配位,形成[Ni(3,5-(SO3)2CatH2)(phen)2(H2O)]结构。在结构单元中,还有四个未配位的水分子。未配位的水分子和[Ni(3,5-(SO3)2CatH2)(phen)2(H2O)]结构通过O-H…O氢键相连,形成三维网状结构。与配体相比,配合物的荧光发射谱发生红移,发射峰在645 nm。荧光寿命为1.07 ns。

The mononuclear Ni（Ⅱ） complex [Ni（ 3,5-（ SO3）2CatH2）（ phen）2（ H2O） ]·4H2O（ CatH2=1,2-dihydroxybenzene,phen = 1,10-phenanthroline） was synthesized by slow evaporation method and it was characterized by X-ray single crystal diffraction,elemental analysis,infrared spectroscopy,thermogravimetric analysis,fluorescence spectroscopy,etc.The results show that the complex crystallizes in triclinic system with space group P1.The nickel anion coordinates with one（ 3,5-（ SO3）2CatH2）2-anion,two 1,10-phenanthroline ligands and one water molecule to form [Ni（ 3,5-（ SO3）2CatH2）（ phen）2（ H2O） ]structural unit.In the asymmetric unit,there are four water molecules,which are interconnected through hydrogen bonds O-H…O with [Ni（ 3,5-（ SO3）2CatH2）（ phen）2（ H2O） ]structural units,forming a threedimensional network structure.Compared with the ligands,the fluorescence spectrum happens red shift,and the emission peak is at 645 nm.The fluorescence lifetime is 1.07 ns.