Synthesis,Crystal Structure and Nonisothermal Kinetics of Complex Co(tda)(5-mphen)(H_2O)

作     者：HOU Xiang-yang CHEN San-ping GAO Sheng-li 

作者机构：Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education College of Chemistry ＆ Materials Science Northwest University Xi＇an 710069 P. R. China Department of Chemistry Yan＇an University Yan＇an 716000 P. R. China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2009年第25卷第3期

页      面：383-387页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070203[理学-原子与分子物理] 0703[理学-化学] 070301[理学-无机化学] 0702[理学-物理学] 

基　　金：Supported by the National Natrual Science Foundation of China(No.20771089) 

主　　题：Co(tda)(5-mphen)(H2O) Crystal structure Kinetics of thermal decomposition 

摘      要：The title complex, formulated as Co（tda）（5-mphen）（H2O）（H2tda=thiodiglycolic acid, 5-mphen= 5-methyl-1,10-phenanthroline）, was synthesized and characterized by elemental analysis, IR spectroscopy, X-ray single crystal diffraction, and TG-DTG techniques. The complex crystallized in monoclinic space group C2/c, with parameters of a=1.8142（2） nm, b=0.78251（9） nm, c=2.4624（3） nm,β=93.809（2）°, V=3.4880（7） nm^3, Z=8, Dc=1.579 g/cm^3, the final R indices[1〉2σ（1）] are R1=0.0469, wR2=0.1021, R indices for all data are R1=0.0835, wR2=0.1169. The central Co^2＋ cation is coordinated in a distorted octahedral geometry with the ligand tda, 5-mphen, and water molecule. The coordination complex possesses a three-dimensional framework by means of hydrogen bonds and π-π stacking interactions. According to TG-DTG curves, the possible thermal decomposition mechanisms, the possible kinetic parameters, and equation of dehydration stage of the complex are obtained, that is, Ea=110.98 kJ/mol, lg（A/s^-1）=8.554, da/dT= 10^8.5546/β.3（1-α）[-1n（1-α）]^2/***（-13349/T）, respectively.