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

摘要

A novel zinc coordination polymer {[Cd2 (bptc)(N3 )2 (H2O)2 ] · 2H2O}n (1) (H4 bptc=3 ,3′,4 ,4′-benzophenonetetracarboxylic ,N3 = 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 )Å ,b=20 .801 (4 )Å ,c=9 .552 (2 )Å ,V =5 198 .3 (17 )Å3 ,Z=4 ,R=0 .053 0 .T he 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-πstack interactions .%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（H2 O）2]·2H2 O｝n （1）（H4 bptc＝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）Å，b＝20．801（4）Å，c＝9．552（2）Å，V ＝5198．3（17）Å3，Z ＝4；最终偏离因子 R＝0．0530。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．