X-RAY DIFFRACTION STUDIES OF NEW HYDRAZONE SCHIFF BASE LIGAND AND DIVALENT Mn (II), Ni (II) AND Zn (II) COMPLEXES

The divalent trivalent metal complexes of were synthesized by the reaction of new heterocyclic hydrazone Schiff base ligand of 4-(diethylamino)-2-hydroxybenzylidene)-4-oxopiperidine-1-carbohydrazide (H₂L): The divalent metal (II) complex were spectrochemically analyzed viz., elemental analysis, Fourier Transform Infrared, Ultraviolet- visible spectroscopy, and X-ray diffraction. The ratio of stoichiometry of ligand with Mn(II), Ni(II) and Zn(II) ion were observed as 1:1 (M:L) in their complexes. On the basis of spectral data the complexes were suggested a octahedral structure to the Mn(II),Ni(II),Zn(II) ions.

KEYWORDS: Heterocyclic hydrazone, metal(II) complexes, spectrochemical analysis, X-ray diffraction.