| Synthesis and Crystal Structure of [Cu3（dmpzm）4（μ-1, 3-dca）2（dca）4]·2H2O （dmpzm = 1,1＇-Methylenebis- （3,5-dimethyl-1H-pyrazole）, dca = dicyanamide） |
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| 作者姓名： | WANG Chun-Lan ;CHEN Yang ;ZHANG Yong ;LANG Jian-Ping |
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| 作者单位： | School of Chemistry and Chemical Engineering Suzhou University，School of Chemistry and Chemical Engineering Suzhou University，School of Chemistry and Chemical Engineering Suzhou University，School of Chemistry and Chemical Engineering Suzhou University，Suzhou Jiangsu 215123 China，Suzhou Jiangsu 215123 China，Suzhou Jiangsu 215123 China，Suzhou Jiangsu 215123 China State Key Laboratory of Coordination Chemistry Nanjing University Jiangsu 210093 China |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China (No. 20525101), the NSF of Jiangsu Province (No. BK2004205), and the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20050285004) and State Key Laboratory of Coordination Chemistry |
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| 摘 要： | The title compound, Cu3（dmpzm）4（μ-1,3-dca）2（dca）4]·2H2O （dmpzm = 1,1＇-methylenebis（3,5-dimethyl-lH-pyrazole）, dca = dicyanamide） 1·2H2O, was synthesized via the reaction of CuCl2·2H2O with dmpzm and Na（dca）, and characterized by elemental analysis and IR spectra. 1·2H2O crystallizes in the monoclinic system, space group C2/m with a = 13.578（3）, b = 16.769（3）, c = 14.769（3） A, β = 104.10（3）° V = 3261.4（11） A^3, Z = 2, Dc = 1.466 g/cm^3, T = 153（2） K, C56H68N34O2Cu3, Mr = 1440.09, F（000） = 1490,μ（MoKa） = 1.040 mm^-1, S = 1.150, R = 0.0553 and wR = 0.1123 for 2744 observed reflections with I 〉 2σ（I）. The central copper atom is chelated by two dmpzm ligands and coordinated by two bridging dca anions, forming a slightly distorted octahedral geometry. The two external copper atoms adopt a square-pyramidal coordination geometry, coordinated by one chelating dmpzm ligand and one bridging and two terminal dca anions. Two intermolecular hydrogen bonding interactions result in the formation of a 2D （4,4） hydrogen-bonded network.
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| 关 键 词： | 铜配合物 合成 晶体结构 亚甲基 吡唑 二氨腈 |
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