Metal Complexes: Preparation, Magnetic, Spectral, and Biocidal Studies of Some Mixed‐Ligand Complexes with Schiff Bases Containing NO and NN Donor Atoms

Abstract

Metal complexes of the types [M(SB¹)₂acphen] and [M(SB²)₂acphen] where M = Mn(II), Co(II), Ni(II), Cu(II), and Cd(II); HSB¹ = 5‐chlorosalicylidene‐p‐anisidine and HSB² = 5‐bromosalicylidene‐p‐anisidine have been prepared and characterized. Magnetic susceptibility measurements, elemental analyses, electro‐nic, and infrared spectral data suggest six‐coordinated octahedral structures for these complexes. The mixed‐ligand complexes show higher activity against Sacch aromyces cereuisae, Salmonella typhi, Fasarium oxysporum, and Lasiodiplodia theobromae as compared to the ligand, metal salts, and control.

Keywords:

• Metal complexes
• Biocidal studies
• Schiff bases
• Electronic spectra

Acknowledgments

The authors are thankful to the Head, Department of Chemistry, and Head, Department of Bio‐Sciences, Sardar Patel University, Vallabh Vidyanagar, India, for providing the necessary laboratory facilities.