Synthesis and Structural Characterization of a Novel Coordination Polymer [Cd(C_4H_2O_4)(C_3H_4N_2)_3]_n·2nH_2O  

作　　者：岳琳 周秋香 王延吉 赵新强 

机构地区：[1]DepartmentofChemicalEngineeringandTechnology,HebeiUniversityofTechnology,Tianjin300130,China

出　　处：《Chinese Journal of Structural Chemistry》2005年第3期287-290,共4页结构化学（英文）

基　　金：Supported by the National Natural Science Foundation of China (No. 20176008);and Natural Science Foundation of Hebei Province (No. 202006)

摘　　要：At room temperature, a new three-dimensional organic-inorganic coordination polymer [Cd(C4H2O4)(C3H4N2)3]n?2nH2O was synthesized by the reaction of Cd(CH3COO)2?2H2O, imidazole and fumaric acid. It was characterized by EA, IR, TG-DTA and X-ray single-crystal diffraction. It crystallizes in the monoclinic system, space group P21/n with a = 8.980(3), b = 15.803(5), c = 13.415(4) ?, α = γ = 90.00°, β = 98.450(5)°, F(000) = 936, Mr = 466.73, Z = 4, V = 1883.0(10) ?3, Dc = 1.646 g/cm3, μ(MoKα) = 1.201 mm-1, S = 1.041, the final R = 0.0237 and wR = 0.0469. The crystal structure shows that the cadmium has a distorted octahedral environment with three carboxyl oxygen donors and three imidazole nitrogen donors. Each cadmium atom is linked by a fumatate as bridging ligand to afford a one-dimensional framework, and then an infinite three- dimensional supramolecular network is formed through hydrogen bonding interactions.At room temperature, a new three-dimensional organic-inorganic coordination polymer [Cd(C4H2O4)(C3H4N2)3]n?2nH2O was synthesized by the reaction of Cd(CH3COO)2?2H2O, imidazole and fumaric acid. It was characterized by EA, IR, TG-DTA and X-ray single-crystal diffraction. It crystallizes in the monoclinic system, space group P21/n with a = 8.980(3), b = 15.803(5), c = 13.415(4) ?, α = γ = 90.00°, β = 98.450(5)°, F(000) = 936, Mr = 466.73, Z = 4, V = 1883.0(10) ?3, Dc = 1.646 g/cm3, μ(MoKα) = 1.201 mm-1, S = 1.041, the final R = 0.0237 and wR = 0.0469. The crystal structure shows that the cadmium has a distorted octahedral environment with three carboxyl oxygen donors and three imidazole nitrogen donors. Each cadmium atom is linked by a fumatate as bridging ligand to afford a one-dimensional framework, and then an infinite three- dimensional supramolecular network is formed through hydrogen bonding interactions.

关 键 词：coordination polymer FUMARATE crystal structure 

分 类 号：O635.1[理学—高分子化学]