Dai Jing-Cao, Wu Xin-Tao, Fu Zhi-Yong, Cui Chuan-Peng, Hu Sheng-Min, Du Wen-Xin, Wu Li-Ming, Zhang Han-Hui, Sun Rui-Qing
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
Inorg Chem. 2002 Mar 25;41(6):1391-6. doi: 10.1021/ic010794y.
Three novel complexes, Cd3tma213H2O (1), Cd3tma2dabco2H2O (2), and Cd3Htma38H2O (3) (tma = trimesate), of cadmium(II)-trimesate coordination polymers are obtained from hydrothermal reaction. 1 (C18H32O25Cd3) crystallizes in the monoclinic C2/c space group [a = 18.985(2) A, b = 7.3872(6) A, c = 20.432(2) A, = 97.1660(10), and Z = 4]. 2 (C24H22N2O14Cd3) crystallizes in the monoclinic P2(1)/c space group [a = 10.1323(2) A, b = 19.5669(5) A, c = 13.15880(10) A, = 108.9810(10), and Z = 4]. 3 (C27H28O26Cd3) belongs to the trigonal P31c space group [a = 15.7547(3) A, b = 15.7547(3) A, c = 7.93160(10) A, and Z = 2]. The Cd(II) centers in the three complexes are bridged by tma ligands in the coordination fashion of unidentate, bridging unidentate, bidentate, chelating bis-bidentate, chelating/bridging bis-bidentate, or chelating/bridging bidentate to form the T-shaped molecular bilayer motif for 1, chicken-wire-like motif for 2, and honeycomb-like porous structure for 3, respectively, in which the T-shaped molecular bilayer motif and chicken-wire-like motif are further interlinked in interdigitating or alternating fashion to construct the different coordination architectures. These three complexes exhibit strong fluorescent emission bands at 355 nm (lambda(ex) = 220 nm) for 1, 437 nm (lambda(ex) = 365 nm) for 2, and 353 nm (lambda(ex) = 218 nm) for 3 in the solid state at room temperature.
通过水热反应得到了三种新型的镉（II）-均苯三甲酸配位聚合物配合物，即Cd3tma2·13H2O（1）、Cd3tma2·dabco·2H2O（2）和Cd3Htma3·8H2O（3）（tma = 均苯三甲酸）。1（C18H32O25Cd3）结晶于单斜晶系C2/c空间群[a = 18.985(2) Å，b = 7.3872(6) Å，c = 20.432(2) Å，β = 97.1660(10)°，Z = 4]。2（C24H22N2O14Cd3）结晶于单斜晶系P2(1)/c空间群[a = 10.1323(2) Å，b = 19.5669(5) Å，c = 13.15880(10) Å，β = 108.9810(10)°，Z = 4]。3（C27H28O26Cd3）属于三方晶系P31c空间群[a = 15.7547(3) Å，b = 15.7547(3) Å，c = 7.93160(10) Å,，Z = 2]。三种配合物中的Cd（II）中心通过均苯三甲酸配体以单齿、桥连单齿、双齿、螯合双齿、螯合/桥连双齿或螯合/桥连双齿的配位方式桥连，分别形成1的T形分子双层结构、2的鸡笼状结构和3的蜂窝状多孔结构，其中T形分子双层结构和鸡笼状结构进一步以交错或交替的方式相互连接，构建出不同的配位结构。这三种配合物在室温固态下分别在355 nm（λex = 220 nm）、437 nm（λex = 365 nm）和353 nm（λex = 218 nm）处表现出强荧光发射带。
