Thermodynamics on the Reactionof Formation of the Coordination Compounds Lu(C5H8NS2)3(C12H8N2)
CHANG Xuan
HU Qi-lin
AN Wei-hua
Abstract：A solid complex, Lu(C5H8NS2)3(C12H8N2),has been obtained from the reaction of hydrous lutetium chloride,ammonium pyrrolidinedithiocarbamate(APDC)and 1,10-phenanthroline(o-phen·H2O)in absolute ethanol.The enthalpy change of the reaction of complex formation from a solution of the reagents,ΔrHθm(sol),and the molar heat capacity of the complex,cm,were determined at 298.15 K by using a RD-496 Ш heat conduction microcalorimeter.The enthalpy change of complex formation from the reaction of the regents in solid phase,ΔrHθm(s),was calculated on the basis of an appropriate thermochemical cycle and other auxiliary thermodynamic data.The thermodynamics of reaction of formation of the complex was investigated by the reaction in solution.Fundamental parameters,the activation enthalpy,the activation entropy,the activation free energy,the apparent reaction rate constant,the apparent activation energy, the pre-exponential constant and the reaction order,were obtained by the combination of the thermochemical data of the reaction and kinetic equations with the data of thermokinetic experiments.
Keywords：hydrous lutetium chlorideammonium pyrrolidinedithiocarbamate (APDC)110-phenanthroline(o-phenH2O)coordination compoundthermochemistry
Publication Date：2006-01-01
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：6( 45-49,100 )