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  • 1 Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
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Abstract

A new supramolecular compound [Ni3(Hdatrz)6(sca)2(H2O)4]sca·11H2O (Hdatrz = 3,5-diamino-1,2,4-triazole, H2sca = succinic acid) was synthesized and characterized by elemental analysis, single crystal X-ray diffraction and thermogravimetric analysis. X-ray structural analysis reveals that the crystal is triclinic, space group P − 1 with lattice parameters a = 10.192(2) Å, b = 11.671(2) Å, c = 13.600(3) Å, β = 68.086(3)°, Z = 1, Dc = 1.689 g/cm−3, F(000) = 728. The enthalpy change of the reaction of formation in water was determined by an RD496–CK2000 microcalorimeter at 25 °C with the value of −23.71 ± 0.023 kJ mol−1. In addition, the thermodynamics of the reaction of formation in water for the compound was investigated by changing the temperature of the reaction and the fundamental parameters k, E, n, , and were obtained.

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