NMR and Other Spectroscopic Studies of Isonicotinoyl Based Hydrazones and Their Ternary Complexes

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