e synthesis, spectroscopic, and magnetic characterization of two new copper(II) and cobalt(II) complexes are described. Both two compounds have the general formula [M(L) 2 (Cl) 2 ], in which L = 2-amino-5-bromopyridine. ese complexes were prepared in one-step synthesis and characterized by elemental analysis, FTIR, UV-Vis, and EPR spectroscopy. Moreover, the single crystal structure of complex (1) was studied by the X-ray diffraction method. is compound consists of mononuclear units consisting of two ligands linked to metal via the nitrogen of pyridine ring. e UV-Vis spectra of copper(II) and cobalt(II) complexes show three and �ve absorption bands, respectively, attributed to the d-d transition of the metal ion, ligand → metal charge transfer, and → * or → * transitions of the ligand. e FTIR spectra show MN 2 Cl 2 vibrations at 500-300 cm −1 . e complexes show room temperature magnetic moments of 1.78 BM and 4.12 BM for Cu(II) and Co(II), respectively. e X-band electron spin resonance (ESR) spectra of Cu(II) complex in DMF or DMSO frozen at liquid nitrogen temperature show the typical Δ S = ±1 transition.

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