Synthesis, characterization and antifungal activity of nickel (II) complexes with cyclic phosphazenes

Abstract

Three organotriphosphazene ligands (L) have been synthesized by substituting the chlorine atoms of hexachlorocyclophosphazene with -NHC₂H₅, - NHCH₂C₆H₅ or -OC₂H₅ Coordination complexes of nickel (II) chloride with these ligands have been prepared in different molar ratios with the general formula [(NiCl₂)_x. L] where x= 1, 2 or 3. The coordination behaviour of

these multifunctional ligands has been discussed on the basis of analytical and physico - chemical studies. The antifungal activities of these complexes are screened against <i>Aspergillus flavus </i>and <i>Aspergillus niger </i>fungi.