Table 1.
Physical properties of polymers 9, 10, 12 and 17–20.
| No. | Yield (%) | Unit Formula | M.Wt | % C (Exp.) | % H (Exp.) | % N (Exp.) | ηinh a | IR (KBr) (υ cm−1) | λmax (nm) |
|---|---|---|---|---|---|---|---|---|---|
| 9 | 88 | C27H24N4O6 | 500 | 64.79 (64.31) | 4.83 (4.42) | 11.19 (11.38) | 0.70 | 3464, 2968, 1768, 1712, 1608, 1549, 1488, 1450, 1386, 1334, 1248, 1115, 1071, 1017, 886, 686. | 265 300 |
| 10 | 81 | C26H23N5O6 | 501 | 62.27 (62.63) | 4.62 (4.88) | 13.97 (13.54) | 0.62 | 3448, 1768, 1712, 1608, 1554, 1488, 1450, 1387, 1333, 1245, 1115, 1071, 1016, 999, 959, 886, 868. | 265 305 |
| 12 | 86 | C27H23N3O7 | 501 | 64.67 (64.30) | 4.62 (4.22) | 8.38 (8.09) | 0.67 | 3423, 2966, 1769, 1713, 1656, 1605, 1548, 1494, 1451, 1385, 1354, 1335, 1255, 1174, 1157, 1117, 1077, 1016, 999, 975, 888. | 265 296 |
| 17 | 90 | C33H28N4O6 | 576 | 68.74 (69.01) | 4.89 (4.55) | 9.72 (9.37) | 0.61 | 3457, 2967, 1769, 1713, 1652, 1597, 1523, 1502, 1467, 1447, 1415, 1385, 1331, 1116, 1070, 887. | 269 306 |
| 18 | 84 | C33H28N4O7 | 592 | 66.88 (66.49) | 4.76 (4.41) | 9.45 (9.78) | 0.60 | 3452, 2967, 1769, 1714, 1655, 1602, 1539, 1499, 1467, 1447, 1408, 1385, 1335, 1232, 1169, 1117, 1071, 1014, 876, 832. | 268 292 |
| 19 | 88 | C34H30N4O6 | 590 | 69.14 (70.45) | 5.12 (5.53) | 9.49 (9.81) | 0.63 | 3460, 1713, 1649, 1533, 1411, 1385, 1253, 1071, 720, 531. | 268 295 |
| 20 | 86 | C33H28N4O8S | 640 | 61.87 (62.34) | 4.41 (4.19) | 8.75 (8.42) | 0.58 | 3468, 1770, 1714, 1674, 1593, 1529, 1447, 1394, 1320, 1252, 1148, 1106, 1071, 888, 836. | 270 305 |
a The inherent viscosity of the polymers was measured at a concentration of 0.5 g/dL in DMSO at 30 °C.