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通过水热合成法合成了配位聚合物ZnL(PMA)0.5·1.5H2O(1),其中H4PMA为均四苯甲酸,L为4,4’,4″-(1H-咪唑-2,4,5-三基)三吡啶。用单晶X-ray衍射法测定了它的晶体结构,该晶体属单斜晶系,空间群P2(1)/c,a=10.465(9),b=9.818(4),c=20.558(3),β=92.85(4)°,V=2109.923,C23H17N5O5.5Zn,Mr=516.82,Z=4,Dc=1.846g/cm3,F(000)=1032.0,R=0.0491,wR=0.1113(I>2ó(I)),2 471个可观测衍射点。该分子为配位聚合物,锌原子位于由2个L配体氮原子和2个均四苯甲酸羧酸氧原子构成的四面体中。结构分析表明,这种配位聚合物通过分子间氢键形成了一种新型的三维网络互穿结构。
The coordination polymer ZnL (PMA) 0.5 · 1.5H2O (1) was synthesized by hydrothermal method, in which H4PMA was tetramethylbenzoic acid and L was 4,4 ’, 4 "- (1H- imidazole-2,4, Triazolyl) tripyridine. Its crystal structure was determined by single crystal X-ray diffractometry. The crystal belongs to monoclinic system with space group P2 (1) /c,a=10.465 (9), b = 9.818 (4), c = 20.558 (3) β, β = 92.85 (4) °, V = 2109.923, C23H17N5O5.5Zn, Mr = 516.82, Z = 4, Dc = 1.846g / cm3, 1032.0, R = 0.0491, wR = 0.1113 (I> 2 ó (I)), 2 471 observable diffraction points.The molecule is a coordination polymer in which the zinc atom is located at the center of the ligand consisting of two L ligands, Benzoate carboxylic acid oxygen atoms in the tetrahedron structure analysis shows that this coordination polymer through intermolecular hydrogen bonding to form a new type of three-dimensional network interpenetrating structure.