Schiff bases Elemental analysisCalculated (Found %) C H N S VIII 61.88 (61.99) 4.79 (4.74) 11.10 (11.15) 12.71 (12.65) IX 65.09 (64.99) 5.46 (5.52) 10.84 (11.02) 12.41 (12.23) X 66.15 (65.98) 5.92 (6.01) 10.29 (10.16) 11.77 (11.86) XI 67.14 (66.98) 4.51 (4.68) 10.44 (10.56) 11.95 (11.98)

Table 2: Elemental analysis data of macrocyclic hydrazone (VIII, IX, X, XI).