Synthesis, Spectroscopic and Biological Activity of New Mononuclear Transition Metal Complexes of Macrocyclic Schiff Bases Derived from 1,1′-Diacetylferrocin

Two series of mono-nuclear complexes with tetradentate macrocyclic Schiff base ligands, derived from the condensation of 1,1′-diacetylferrocene with 1,3-diaminopropanein in the molar ratio 1:1 and 1:2 have been prepared. The structures of these ligands were elucidated by different spectroscopic methods. The two Schiff base ligands react with copper(II), nickel(II), cobalt(II), and Zinc(II) metal ions in the molar ratio 1:1. The structures of complexes were identified by elemental analyses, infrared, electronic spectra, 1 H-NMR, 13 C-NMR, magnetic susceptibility, conductivity measurement and TGA analysis. The ligands and the complexes show growth inhibitory activity against pathogenic bacteria and plant pathogenic fungi.

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