A thermochemical study of the solid-state coordination reactions of two α-amino acids with copper(II) acetate

The two solid-state coordination reactions(1)CuAc2·H2O(s)+2Ala(s)→trans-Cu(Ala)2(s)+2HAc(l)+H2O(l)(2)CuAc2·H2O(s)+2Gly(s)→trans-Cu(Gly)2·H2O(s)+2HAc(l)have been studied by solution calorimetry. The molar dissolution enthalpies of the reactants and the products in some solvents (such as 2moll−1 HCl o...

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Bibliographic Details
Published in:Thermochimica acta 2002-05, Vol.387 (2), p.115-119
Main Authors: Di, You-Ying, Qu, Song-Sheng, Liu, Yi, Wen, De-Cai, Tang, Hou-Kuan, Li, Lin-Wei
Format: Article
Language:English
Subjects:
Alanine
Aliphatic compounds
Chemistry
Copper(II) acetate
Exact sciences and technology
Glycine
Isoperibol solution calorimetry
Organic chemistry
Preparations and properties
Standard molar formation enthalpy
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Summary:The two solid-state coordination reactions(1)CuAc2·H2O(s)+2Ala(s)→trans-Cu(Ala)2(s)+2HAc(l)+H2O(l)(2)CuAc2·H2O(s)+2Gly(s)→trans-Cu(Gly)2·H2O(s)+2HAc(l)have been studied by solution calorimetry. The molar dissolution enthalpies of the reactants and the products in some solvents (such as 2moll−1 HCl or its solutions) of these solid–solid coordination reactions have been measured by an isoperibol solution calorimeter. The standard molar formation enthalpies of [trans-Cu(Ala)2(s), 298.15K] and [trans-Cu(Gly)2(s), 298.15K] have been determined to be −1015.42 ± 0.06 and 1252.36 ± 0.05kJmol−1, respectively, from the results of the molar dissolution enthalpies and other auxiliary thermodynamic data.
ISSN:0040-6031
1872-762X
DOI:10.1016/S0040-6031(01)00831-0