基于3,3′,4,4′-二苯酮四甲酸构筑的配位聚合物合成、晶体结构和荧光性能研究

Syntheses,structures and properties of one novel coordination polymer assembled with 3,3′,4,4′-benzophenonetetracarboxylic

基于柔性有机羧酸配体3,3′,4,4′-二苯酮四甲酸作为构筑单元,同时选取吡啶类配体作为辅助配体,采用扩散方法合成具有三维孔洞结构的配位聚合物{[Cd2(bptc)(N3)2(H2O)2]·2H2O}n(1)(H4bptc=3,3′,4,4′-benzophenonetetracarboxylic,N3=dipyridin-2-ylamine),通过X-射线单晶衍射测定了单晶结构,并进行元素分析、红外光谱、热分析、荧光等性能研究.结果表明该配合物属于单斜晶系,空间群C2/c;晶胞参数a=26.696(4),b=20.801(4),c=9.552(2),V=5 198.3(17)3,Z=4;最终偏离因子R=0.053 0。配体bptc4-键连金属Cd(II)构成了一维链状结构,另外,一维链又通过分子间氢键作用和π-π堆积作用构成了三维超分子多孔网络结构.

A novel zinc coordination polymer { [ Cd2 （bptc） （ N3） 2 （ H2 O） 2 ] · 2 H2O} n （ 1 ） （H4 bptc= 3,3′, 4,4′-benzophenonetetracarboxylic, Na = dipyridin-2-ylamine） has been dif- fuse synthesized and structurally characterized by single-crystal. Additionally, the fluores- cent property, and TG analysis for compound 1 were also measured and discussed. The re- sults show that complex 1 crystallizes in the monocline system, space group C2/c with a= 26.696（4）A,b=20.801（4）A,c=9.552（2）A,V=5 198. 3（17）A3,Z=4,R=0. 053 0. The bptc4 ligands bond the Cd（II） atoms to produce an infinite linear 1D chain, which was linked to form a 3D supramolecular network by the hydrogen bonding interactions and π-π stack interactions.