Premium
Thermochemistry on Coordination Behavior of Praseodymium Chloride Hydrate with Diethylammonium Diethyldithiocarbamate
Author(s) -
Chen SanPing,
Ren YiXla,
Jiao BaoJuan,
Gao ShengLi,
Zhao FengQi,
Hu RongZu,
Shi QiZhen
Publication year - 2003
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.20030211104
Subject(s) - chemistry , enthalpy , thermochemistry , praseodymium , hydrate , reaction rate constant , isothermal microcalorimetry , thermochemical cycle , standard enthalpy of formation , activation energy , inorganic chemistry , enthalpy change of solution , standard enthalpy of reaction , thermodynamics , enthalpy of atomization , chloride , kinetics , organic chemistry , hydrogen , standard enthalpy change of formation , hydrogen production , physics , quantum mechanics
The complex of praseodymium chloride lower hydrate with diethylammonium diethyldithiocarbamate (D‐DDC) has been synthesized conveniently in absolute alcohol and dry N 2 atmosphere. The title complex was identified as Et 2 NH 2 [Pr‐(S 2 CNEt 2 ) 4 ] by chemical and elemental analyses, the bonding characteristics of which were characterized by IR spectrum. The enthalpy of solution for praseodymium chloride hydrate and D‐DDC in absolute alcohol at 298.15 K, and the enthalpy changes of liquid‐phase reaction of formation for Et 2 NH 2 [Pr‐(S 2 CNEt 2 ) 4 ] at different temperatures were determined by microcalorimetry. On the basis of experimental and calculated results, three thermodynamic parameters (the activation enthalpy, the activation entropy and the activation free energy), the rate constant and three kinetic parameters (the apparent activation energy, the pre‐exponential constant and the reaction order) of liquid phase reaction of formation were obtained. The enthalpy change of the solid‐phase title reaction at 298.15 K was calculated by a thermochemical cycle.