Chemical Shifts δppm Schiff base
-CO-NH- CH=N C-H aromatic -O-CH2- (CH2-CH2-)n
11.213 (s,2H) 8.813 (s,2H) 8.043 - 7.165 (m,8 H) ---------- 2.981 - 1.274(m,12H) VI
10.510 (s,2H) 8.901 (s,2H) 8.126 - 7.021 (m,12 H) 4.345 -4.336 (s,4H) 2.449 - 1.278(m,8H) VII
10.509 (s,2H) 8.977 (s,2H) 8.138 - 6.958(m,12 H) 4.018 -4.009(s,4H) 2.198 - 1.276(m,8H) VIII
Table 5: 1H-NMR Spectra ofmacrocyclichydrazone (VI, VII,VIII).