The synthesis and characterization of complex [Cu(dppo)2] (dppo = 1,3-diphenylpropane-1,3-dione) is reported. The complex has been fully characterized by FT-IR, UV–vis, elemental analysis and Cyclic Voltammetry. The paramagnetic nature of the complex was confirmed by magnetic measurement and the square planar geometry was ascertained by single crystal X-ray determination. The complex has been found to be a good homogeneous catalyst for the synthesis of 1,2,3-triazole derivatives via one-pot reaction of arylboronic acids, sodium azide and alkynes in DMF. © 2016 Elsevier B.V.