Solid State Synthesis, Characterisation and Biological Activity of 4,4′-Bipyridinium Tetrachloronickelate (II) and 4,4′-Bipyridine Dichloronickel (II) Complexes

Abstract

Complexes of nickel (II) were synthesized by grinding nickel (II) chloride with protonated 4,4′- bipyridiniumchloride. The complexes were characterized by elemental analysis and infrared spectral studies, decomposition temperature determination, conductivity measurement and solubility test. The complexes were found to be very stable and non-electrolyte. Antimicrobial activity of these complexes observed on some becteria and fungi showed good inhibition zone at highest concentration. The values obtained for molar and electric conductance measurement of the complex are 35.8 and 35.8 × 10^-6 respectively, this indicates that the synthesized complexes are non-electrolytes.

Keywords: Hydrogen bond network, Mechanochemistry, Coordination ploymers