Thermokinetics on the Reaction of Formation of the Ternary Complex Nd[(C_5H_8NS_2)_3(C_(12)H_8N_2)]  

作　　者：樊学忠 孟祥鑫 陈三平 焦宝娟 任宜霞 高胜利 史启祯 

机构地区：[1]Department of Chemistry, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University [2]Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China

出　　处：《Chinese Journal of Chemistry》2004年第10期1109-1114,共6页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (No. 20171036); the National Natural Science Foundation of Shaanxi Prov-ince (No. FF02328) and Education Committee of Shannxi Province (No. 01JK229).

摘　　要：The title ternary complex Nd[(C5H8NS2)3(C12H8N2)] has been synthesized in absolute ethanol by the reaction of NdCl33.74H2O with ammonium pyrrolidinyldithiocarboxylate (APDC) and 1,10-phenanthroline (phenH2O) at air atmosphere without any cautions against moisture. The bonding characteristics of the complex were characterized by IR, showing that Nd3+ is bonded with sulfur atom in the APDC and coordinated with nitrogen atom in the phen. TG-DTG investigation indicates that the title complex was decomposed into Nd2S3 and deposited carbon in one step where Nd2S3 predominated in the final products. The enthalpy change of formation of the reaction on the title com-plex in liquid-phase has been determined by a microcalorimeter. Thermodynamic parameters (the activation en-thalpy, the activation entropy and the activation free energy) and kinetics parameters (the rate constant, the apparent activation energy, the pre-exponential constant and the reaction order) of the title reaction have been calculated. The enthalpy change of the solid-phase reaction has been obtained by a thermochemistry cycle.The title ternary complex Nd[(C5H8NS2)3(C12H8N2)] has been synthesized in absolute ethanol by the reaction of NdCl33.74H2O with ammonium pyrrolidinyldithiocarboxylate (APDC) and 1,10-phenanthroline (phenH2O) at air atmosphere without any cautions against moisture. The bonding characteristics of the complex were characterized by IR, showing that Nd3+ is bonded with sulfur atom in the APDC and coordinated with nitrogen atom in the phen. TG-DTG investigation indicates that the title complex was decomposed into Nd2S3 and deposited carbon in one step where Nd2S3 predominated in the final products. The enthalpy change of formation of the reaction on the title com-plex in liquid-phase has been determined by a microcalorimeter. Thermodynamic parameters (the activation en-thalpy, the activation entropy and the activation free energy) and kinetics parameters (the rate constant, the apparent activation energy, the pre-exponential constant and the reaction order) of the title reaction have been calculated. The enthalpy change of the solid-phase reaction has been obtained by a thermochemistry cycle.

关 键 词：hydrous neodymium chloride ammonium pyrrolidinyldithiocarboxylate (APDC) 1 10-phenan- throline (phen) characterization THERMOCHEMISTRY 

分 类 号：O627[理学—有机化学]