A Novel Layer Cadmium Coordination Polymer Containing Tetranuclear [Cd_4(tpt)_2(Cl)_4]^(4+) as a Secondary Building Unit(SBU) Bridged by Pyridine 2,4-Dicarboxylic Acid  

作　　者：向景 骆亚 

机构地区：[1]College of Chemistry and Environmental Engineering,Yangtze University

出　　处：《Chinese Journal of Structural Chemistry》2014年第3期345-352,共8页结构化学（英文）

基　　金：supported by the financial support of National Natural Science Foundation of China(21201023);the scientific research fund of Hubei Provincial Education Department(D20131202)

摘　　要：A novel 2-D {[Cd4（tpt）2（Cl）4（2,4-pdc）2]·4H2O}n （1） has been synthesized from the hydrothermal reaction of 3,5,6-tris（2-pyridyl）-1,3,5-triazine （tpt）, hydrated CdCI2, and 2,4-dicarboxylic acid （2,4-H2pdc）. Compound 1 crystallizes in triclinic, P1^- space group with a = 8.9434（5）, b = 9.5486（7）, c = 17.5772 （8） A, a = 75.014 （5）, β= 83.778（5）, γ = 68.304（6）°, V = 1347.14（14） A^3, C50H38Cd4C14N14O12, Mr = 1618.32, Dc = 1.990 g/cm^3, S = 0.95,μ（MoKa） = 1.83 mm^-1, F（000） = 788, Z = 1, R = 0.039 and wR = 0.080. The structure consists of tetranuclear [Cd4（tpt）2（Cl）4]^4＋ cores as the secondary building unit, which is further connected by the ligand pdc2 to give a 2-D extended structure. Tpt entities are located on both sides of each 2-D framework and act as ＇side arms＇ to form a corrugated layer and the adjacent layers are arranged in a tongue-and-groove interdigitating fashion. 1 was characterized by IR, TGA, PX1RD, and elemental analysis. The solid state luminescent properties were also investigated at room temperature.A novel 2-D {[Cd4（tpt）2（Cl）4（2,4-pdc）2]·4H2O}n （1） has been synthesized from the hydrothermal reaction of 3,5,6-tris（2-pyridyl）-1,3,5-triazine （tpt）, hydrated CdCI2, and 2,4-dicarboxylic acid （2,4-H2pdc）. Compound 1 crystallizes in triclinic, P1^- space group with a = 8.9434（5）, b = 9.5486（7）, c = 17.5772 （8） A, a = 75.014 （5）, β= 83.778（5）, γ = 68.304（6）°, V = 1347.14（14） A^3, C50H38Cd4C14N14O12, Mr = 1618.32, Dc = 1.990 g/cm^3, S = 0.95,μ（MoKa） = 1.83 mm^-1, F（000） = 788, Z = 1, R = 0.039 and wR = 0.080. The structure consists of tetranuclear [Cd4（tpt）2（Cl）4]^4＋ cores as the secondary building unit, which is further connected by the ligand pdc2 to give a 2-D extended structure. Tpt entities are located on both sides of each 2-D framework and act as ＇side arms＇ to form a corrugated layer and the adjacent layers are arranged in a tongue-and-groove interdigitating fashion. 1 was characterized by IR, TGA, PX1RD, and elemental analysis. The solid state luminescent properties were also investigated at room temperature.

关 键 词：cadmium cluster luminescence crystal structure solvothermal synthesis 

分 类 号：O634[理学—高分子化学]