Spectral and Antifungal Activity of Fe(II) and Cu(II) Mixed Ligand Complexes with Oxygen, Nitrogen and Sulphur Donor Ligands

Abstract

Mixed ligand complexes of the type [M(LH₂)B₂] where M = Fe(II) or Cu(II), L = 1-hydroxy-10-mercapto-1,2:5,6:9,10-tribenzo-3,7-diaza- 1,3,5,7,9-decapentene (LH₂), B = water, ammonia, phenyl isocyanide, quinoline, pyridine or α, β and γ-picolines. The ligand as well as metal complexes were characterized on the basis of elemental analyses, IR, electronic spectra, molar conductance, magnetic moment data. On the basis of above observations the complexes were proposed to be octahedral in nature. The LH₂ behaves as binegative tetradentate ligand. The remaining coordination sites are satisfied by neutral molecules. The ligand as well as their metal complexes were also screened for antifungal activity.