Guanhua Luo, Xiao-Han Gao, Lu Pan
Apr 29, 2016
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Journal
Journal of Thermal Analysis and Calorimetry
Abstract
A hydrous complex of erbium coordinated with glycine sodium perchloric acid, Er2(μ2-Gly)6(H2O)4·Na2(ClO4)8(H2O)2·4H2O (Gly = glycine), was synthesized firstly and characterized by X-ray single-crystal diffraction. The complex crystallizes centrosymmetrically in the triclinic P-1 space group [a = 9.2959 (5), b = 12.1756 (7) Å, c = 13.9928 (7) Å, V = 1367.67 (13) Å3, Z = 1]. The low-temperature molar heat capacities and thermodynamic properties of the complex were studied with adiabatic calorimetry. The thermodynamic functions, [HT–H298.15] and [ST–S298.15], were derived in the temperature range from 80 to 370 K with a temperature interval of 5 K. Thermal decomposition behavior of the complex in nitrogen atmosphere was studied by thermogravimetric analysis and differential scanning calorimetry.Graphical Abstract