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Thermokinetics on the reaction of formation of the ternary complex Nd[(C 5 H 8 NS 2 ) 3 (C 12 H 8 N 2 )]
Author(s) -
Fan XueZhong,
Meng XiangXin,
Chen SanPing,
Jiao BaoJuan,
Ren YiXia,
Gao ShengLi,
Shi QiZhen
Publication year - 2004
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20040221011
Subject(s) - chemistry , thermochemistry , enthalpy , thermochemical cycle , activation energy , reaction rate constant , ternary operation , standard enthalpy of formation , gibbs free energy , kinetics , analytical chemistry (journal) , thermodynamics , catalysis , organic chemistry , hydrogen production , physics , quantum mechanics , computer science , programming language
The title ternary complex Nd[(C 5 H 8 NS 2 ) 3 (C 12 H 8 N 2 )] has been synthesized in absolute ethanol by the reaction of NdCl 3 ·3.74H 2 O with ammonium pyrrolidmyldifhiocaboxylate (APDC) and 1,10‐phenanthroline (phen·H 2 O) at air atmosphere without any cautions against moisture. The bonding characteristics of the complex were characterized by IR, showing that Nd 3+ 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 Nd 2 S 3 and deposited carbon in one step where Nd 2 S 3 predominated in the final products. The enthalpy change of formation of the reaction on the title complex in liquid‐phase has been determined by a microcalorimeter. Thermodynamic parameters (the activation enthalpy, 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.