Schiff bases v(C-O) v(C=C) v(C=N) v(C=O) C-H aliph C-H aromatic -CO-NH-
VI 1227.2 1619.6 - 1599.2 1688.4 1727.5 2946.0 3051.39 3431.4
VII 1281.7-1249.7 1600.5 1637.9 1723.2 2942.7 - 2867.0 3027.1 3476.7 -3237.1
VIII 1242.16 1577.77 1600.92 1705.07 2993.5-2843.07 3055.24 3278.99-3140.1
Table 3: IR spectral data (cm-1) of macrocyclichydrazone (VI, VII, VIII).