Characterization and CNS Depressant Studies on Complexes of Mn(II), Co(II) and Ni(II) with 2-(Thiophene-2-Formylimino)Benzimidazole

Abstract

Complexes of Mn(II), Co(II) and Ni(II) with 2-(thiophene-2-formylimino)benzimidazole have been synthesized. The characterization have been done on the basis of elemental analysis, conductivity measurements, magnetic studies, IR and electronic spectral studies. Complexes have been found psychopharmacologically more effective in taming, hypnotic activities and possess much higher toxicity as compared to the ligand. Complexes with distorted octahedral geometry with ML₂X₂ stoichiometries have been reported (where X = Cl^–, NO₃^–, CH₃COO^– and C₆H₅COO^–).