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

• Published in: Thermochimica acta Vol. 387; no. 2; pp. 115 - 119
• Main Authors: Di, You-Ying, Qu, Song-Sheng, Liu, Yi, Wen, De-Cai, Tang, Hou-Kuan, Li, Lin-Wei
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 23.05.2002; Elsevier Science
• 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; Alanine; Isoperibol solution calorimetry; Glycine; Standard molar formation enthalpy; Copper(II) acetate; α-Aminoacid; Enthalpy; Solid state reaction; Organic salt; Copper II Acetate; Thermodynamic properties; Copper II Compounds; Heat of solution; Hydrates
• ISSN: 0040-6031; 1872-762X
• DOI: 10.1016/S0040-6031(01)00831-0

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.