[Ag(4，4′-bpy)]+及[Zn(phen)2(H2O)2]2+两种配合物的合成、结构与荧光性质

用水热法和溶液法分别合成了2个新的配合物{Ag(4,4′-bpy)]·3-HSBA.H2O}n(1)和Zn(phen)2(H2O)2]·(A-2,5-DSA)·3H2O(2)(3-HSBA=3-羧基苯磺酸根,A-2,5-DSA=苯氨-2,5-二磺酸根,4,4′-bpy=4,4′-联吡啶,phen=1,10-邻菲咯啉),用X-射线单晶衍射结构分析方法测定了其晶体结构。配合物1是一维链状结构。在1个不对称单元中包含1个Ag(4,4′-bpy)]+阳离子,1个3-羧基苯磺酸根阴离子和1个晶格水分子。Ag髣离子与2个4,4′-联吡啶的2个氮原子配位。配合物2是单核结构。在1个不对称单元中包含1个Zn(phen)2(H2O)2]2+阳离子,1个苯氨-2,5-二磺酸根阴离子和3个晶格水分子。Zn髤离子与2个1,10-邻菲咯啉的4个氮原子和2个水氧原子配位。配合物1和2中,配位阳离子、抗衡阴离子以及晶格水分子之间存在丰富的氢键,进而构筑成超分子网络结构。配合物的荧光均来自于配体的π-π*电子跃迁。

Synthesis,Characterization and Fluorescence Property of Two Complexes Based on[Ag(4,4'-bpy)]+and[Zn(phen)2(H2O)2]2+

Two complexes,{Ag(4,4′-bpy)]·3-HSBA·H2O}n(1) and Zn(phen)2(H2O)2]·(A-2,5-DSA)·3H2O(2)(3-HSBA=3-sulfobenzoate,A-2,5-DSA=Aniline-2,5-disulfonate,4,4′-bpy=4,4′-bipyridine,and phen=1,10-phenathroline),were synthesized under hydrothermal condition and solvent method,respectively.The structures of the two complexes were determined by X-ray diffraction single-crystal structure analysis.Complex 1 is a one-dimensional chain structure.The asymmetric unit contains one Ag(4,4′-bpy)]+ cation,one free 3-HSBA anion and a lattice water molecule.Ag(Ⅰ) ion is two-coordinated by two N atoms from two 4,4′-bpy molecules.Complex 2 is a mononuclear molecule containing one Zn(phen)2(H2O)2]2+ cation,one free A-2,5-DSA anion and three lattice water molecules.Zn(Ⅱ)ion is six-coordinated by four N atoms from two phen ligands and two O atoms from two water molecules.The different 3D supramolecular networks of the two complexes have resulted from extensive hydrogen bonds among the coordination cations,counterions and lattice water molecules.Fluorescence spectrum of the two complexes are assigned to π-π* of ligand.CCDC: 820981,1;820982,2.