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A hydrous complex of erbium coordinated with glycine sodium perchloric acid, Er( μ -Gly)(HO)·Na(ClO)(HO)·4HO (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) Å, Z = 1]. The low-temperature molar heat capacities and thermodynamic properties of the complex were studied with adiabatic calorimetry. The thermodynamic functions, [ H - H ] and [ S - S ], 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: [ABSTRACT FROM AUTHOR]

A heptanuclear trigonal prismatic polyhedron, [EuCu(μ-OH)(Gly)Im](ClO)·3HO, was synthesized and characterized by elemental analysis and X-ray single-crystal diffraction. The complex crystallize is the rhombohedral R3 space group ( a = b = 15.8673 Å, c = 23.4038 Å, V = 5103.0(6) Å, Z = 3). In the clusters, Eu ions are situated in the center of a prism formed by six copper atoms and coordinate to nine oxygen atoms with a tricapped trigonal prismatic coordination polyhedron. Six glycinato ligands and six imidazole terminal ligands (each coordinates to one Cu) were used in the construction of the cluster. The low-temperature molar heat capacity, C, and thermodynamic properties of the complex were studied with an adiabatic calorimeter from 80 to 370 K. The thermodynamic functions [ H- H] and [ S- S] were derived in the temperature range from 80 to 370 K with a temperature interval of 5 K. The thermal properties of the complex from 300 to 800 K were studied by DSC and TG in nitrogen atmosphere. [ABSTRACT FROM AUTHOR]