A new coordination complexes of cobalt (II) and copper (II) with Pyrrolyl-2-carboxaldehyde
isonicotinylhydrazone have been synthesized and characterized by elemental
analysis, conductance measurements, magnetic susceptibility measurements,
1H NMR spectroscopy, IR spectroscopy, UV-Vis-absorption spectroscopy,
ESR spectroscopy and thermal analysis. IR spectra suggest ligand acts
as a dibasic donor coordinating through the azomethine nitrogen atom and
enolic oxygen atom. ESR and ligand field spectra suggest a tetrahedral
geometry for Co(II) complex and a square planar geometry for Cu(II) complexes.