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| 异核配合物K2[Co(Dipc)2]·7H2O的合成、性质、结构和热分解动力学研究 | |
| 引用本文： | 张淑华,蒋毅民,肖 瑜.异核配合物K2[Co(Dipc)2]·7H2O的合成、性质、结构和热分解动力学研究[J].无机化学学报,2003,19(12):1339-1342. |
| 作者姓名： | 张淑华 蒋毅民 肖 瑜 |
| 作者单位： | 1. 桂林工学院材料与化学工程系,桂林,541004 2. 广西师范大学化学化工学院,桂林,541004 3. 桂林工学院资源与环境工程系,桂林,541004 |
| 基金项目： | 广西科学基金，广西高校科研项目 |
| 摘 要： | A heteronuclear compound, K2Co(Dipc)2]·7H2O (Dipc=pyridine-2,6-dicarboxylic acid) has been synthe- sized and characterized by IR, elemental analysis, and X-ray diffraction. Crystal data: orthorhombic system with space group Pnna and unite cell parameters: a=2.0645(3)nm, b=1.3484(2)nm, c=0.8204(1)nm; V=2.2838(6)nm3, Z=4, Dcald=1.726 g·cm-3, μ=1.193 mm-1, F(000)=1212, Gof=1.045, Δρ=339～-348 e·nm-3, the final R is 0.0295. In the molecule of the complex, Co(Ⅱ) ion is six-coordinate to form a dis-torted octahedron. The N atom and the carboxyl group of pyridine-2,6-dicarboxylic acid are coordinated with the central ions. One of the carboxyl groups of the pyridine-2,6-dicarboxylic acid connect K(Ⅰ) and Co(Ⅱ). The com- pound possesses approximate C2 symmetry. The compounds form a three-dimensional network of infinite length connection with crystal waters, potassium ions and hydrogen bonds. The result of kinetics of thermal decomposition indicated that the compound decomposition takes place in two steps. CCDC: 207078. |
| 关 键 词： | 吡啶-2 6-二甲酸 异核配合物 晶体结构 热分解动力学 |
Synthesis, Characterization, Structure and Kinetics of Thermal Decomposition of K2[Co(Dipc)2]·7H2O |
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| ZHANG Shu-Hu,JIANG Yi-Min and XIAO Yu.Synthesis, Characterization, Structure and Kinetics of Thermal Decomposition of K2[Co(Dipc)2]·7H2O[J].Chinese Journal of Inorganic Chemistry,2003,19(12):1339-1342. | |
| Authors: | ZHANG Shu-Hu JIANG Yi-Min and XIAO Yu |
| Institution: | Department of Material and Chemical engineering, Guilin Institute of Technology, Guilin 541004,Department of Chemistry, Guangxi Normal University, Guilin 541004 and Department of Resources and Environment Engineering, Guilin Institute of Technology, Guilin 541004 |
| Abstract: | A heteronuclear compound, K2 Co (Dipc) 2 ] @ 7H2O (Dipc = pyridine-2, 6-dicarboxylic acid) has been synthesized and characterized by IR, elemental analysis, and X-ray diffraction. Crystal data: orthorhombic system withspace group Pnna and unite cell parameters: a =2. 0645(3) nm, b = 1. 3484(2) nm, c =0. 8204(1) nm; V=2.2838(6) nm3, Z=4, Dca1d=1.726g@cm-3, μ=1.193mm-1, F(000)=1212, Gof=1.045, △ρ=339～ -348 e @ nm-3, the final R is 0. 0295. In the molecule of the complex, Co (Ⅱ) ion is six-coordinate to form a dis-torted octahedron. The N atom and the carboxyl group of pyridine-2, 6-dicarboxylic acid are coordinated with thecentral ions. One of the carboxyl groups of the pyridine-2, 6-dicarboxylic acid connect K (Ⅰ) and Co (Ⅱ). The com-pound possesses approximate C2 symmetry. The compounds form a three-dimensional network of infinite lengthconnection with crystal waters, potassium ions and hydrogen bonds. The result of kinetics of thermal decompositionindicated that the compound decomposition takes place in two steps. |
| Keywords: | pyridine-2 6-dicarboxylic acid heteronuclear compound crystal structure kinetics of thermal decomposition |
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