Synthesis and characterization of nickel(II) complex of p-[N, N-bis-(2-chloroethyl)amino]benzaldehyde-4-ethyl thiosemicarbazone

Abstract

New square planar complex of Ni(ll) (S = 0) with/;-[N, N-bis (2-chloroethyl)aminobenzaldehyde-4-ethyl thiosemicarbazone has been synthesized and characterized by elemental analysis, IR, electronic, 'H-NMR spectroscopy. The crystal structures of the free thiosemicarbazone and complex have been determined by single crystal X-ray diffraction technique. In the complex, the thiosemicarbazone is coordinated to nickel through square planar (1: 2 complex) SNNS mode. The complex crystallizes in the monoclinic space group C2/c. The complex has been tested for their antibacterial activity against various pathogenic bacteria. From this study, it was found out that the activity of complex is comparable with that of the conventional bactcriocidc Streptomycin compared to free thiosemicarbazone.