NMR AND OTHER SPECTROSCOPIC STUDIES OF ISONICONTINOYL BASED HYDRAZONES AND THEIR TERNARY COMPLEXES

The three isonicotinoyl hydrazone Schiff bases viz. anisaldehyde isoni cotinoyl hydrazone (AINH), 2-furaldehyde isonicotinoyl hydrazone (FINH ), 2-thi ophenealdehyde isonicotinoyl hydrazone (TINH) have been synth esized and characterized on the basis of their elemental analysis, mag netic suspectibility, IR, electronic and nmr spectral studies. The ter nary complexes of Ni(II) and Cu(II) with these hydrazones and neutral bidentate base phen and bipy are octahedral and the presence of acetat e and/or water molecule is revealed by the study of their IR spectra, force constants and thermal degradation pattern. Suitable structures h ave been assigned to these ternary complexes.