Synthesis, Characterization and Thermal Study of a High Energetic Copper(II) Complex with Triazolic Ligand

A new high energetic copper(II) complex, [Cu(μ-DAMT)Cl2]2, was prepared by the reaction of 4,5-diamino-3-methyl-4H1,2,4-triazol-1-ium chloride (DAMT.HCl) with copper(II) nitrate and identified by elemental analysis, spectral characterization (FT-IR), melting point and molar conductivity. The spectral and physical characterizations of the product confirm the formation of a binuclear structure of copper(II). In the predicted structure of the complex, copper atom has a coordination number of four with a square planar geometry and CuN2Cl2 environment. In the copper complex, the DAMT ligand acts as N2-donor through its 2 and 3 triazolic sp2 nitrogen atoms. The amine nitrogen atoms do not participate in the coordination process. Thermal property of the ligand and complex was studied by TGA/DSC thermogram. These data reveals that although the salty ligand has an endothermic decomposition whilst after coordination to the copper atom, forms a high energetic complex with exothermic decomposition. This complex releases –279.08 Jg–1 energy during the second step of decomposition in thermal range of 262-271 °C.