A new tetradentate N2S2 Schiff base ligand derived from 5-bromothiophene-2-carbaldehyde and its
[CuBr(N2S2)]Br complex were synthesized in good yield. FT-IR was investigated to monitor the
condensation reaction during the ligand synthesis process. The ligand, N2S2, and its complex,
[CuBr(N2S2)]Br, complex have been characterized with the aid of several spectroscopic techniques such
as UVevis., MS, FT-IR, EA, EDS, NMR (for N2S2), as well as by thermal (TG/DTG) analysis. In addition, cyclic
voltammetry has been employed to examine the redox behavior of [CuBr(N2S2)]Br complex in N,N’-
dimethylformamide (DMF) containing 0.10 M tetra-n-butylammonium perchlorate (TBAP). The anticonformation
EE isomer of the ligand (N2S2) was confirmed by means of X-ray crystallography; ligand
crystallizes in to the monoclinic P21/c space group. N2S2 ligand was subject