SPECTRAL STUDIES OF NEW ORGANOMETALLIC SCHIFF BASE COMPLEXES AND THEIR ANTI-FUNGAL ACTIVITY

Synthesis of new organometallic Schiff bases complexes with general formula [ML)xH₂O] [where M = Mn(II), Ni(II), Cu(II) Pd(II) and Pt(II), L=2,2′-{(1R,1′S)-1,1’Ferrocen-2,4-dien-1-yl-2,2′-diyl bis [(Z)methyl-ylidenenitrilo]}bis(3-iodophenol)] have been prepared and characterized by elemental analysis, magnetic susceptibility, Conductivity IR, UV-Visible, Mass spectra and TGA/DTA. Organometallic Schiff base is tetradentate and co-ordination through nitrogen of azomethine (>C=N-) and oxygen of Hydroxyl group. The complexes have octahedral geometry with six coordination number. Electronic spectra of the complexes were recorded and its parameters like Nephelauxetic effect (β), bonding parameter (b^1/2) and Sinha’s parameter (δ %) are calculated. TGA and DTA results of [Pt (C₂₄H₁₆ FeI₂N₂O₂).2H₂O] and [Pd (C₂₄H₁₆ FeI₂N₂O₂).2H₂O] are reported, Complexes were losing weight due to exothermic and endothermic process. The mass spectra of prepared ligand (C₂₄H₁₈ FeI₂ N₂O₂) and its complex such as [Mn (C₂₄H₁₆FeI₂N₂O₂).2H₂O] were used to compare their stoichiometric composition and it found that near about equal to the theoretical mass of the complex and prepared ligand. Synthesis of nanoparticles of OMNPs (organometallic Nanoparticles) of Cu(II) Complex with SEM and EDX were recorded and particle size is in between 52-60nm. The ligand and complexes have been screened for its anti-fungal activities against three fungi Alternaria brassicae, Aspergillus niger, Fusarium oxysporum.