Physico-chemical and Spectral Studies of Nickel(II) Complexes of 2-Substituted Benzaldehyde Semicarbazones and Thiosemicarbazones

Abstract

Complexes of divalent nickel have been synthesized by refluxing the metal salts with the ligands, 2-chlorobenzaldehyde semicarbazone/thiosemicarbazone and 2-ethoxy benzaldehyde semicarbazone/thiosemicarbazone. All these complexes are characterized on the basis of elemental analysis, magnetic susceptibility measurements, infrared spectral and electronic spectral studies. Infrared spectral data of the complexes revealed bidentate complexating nature of the ligands coordinating through oxygen atom of carbonyl group/sulphur atom of thioketo form and azomethine nitrogen atom. High spin configuration has been indicated by magnetic moment measurements of these complexes. For all the metal complexes the probable structures are also reported here.