Table 2 Key infrared data of L and complexes 1–5
Complexes | NH2 | -S-H | C = N | C-S | M-N | M-S |
|---|---|---|---|---|---|---|
L | 3250, 3213 | 2736 | 1645 | 673 | - | - |
Ni(L) 2 1 | 3280, 3228 | - | 1643 | 690 | 530 | 459 |
Cu(L) 2 2 | 3321, 3286 | - | 1620 | 694 | 532 | 428 |
Zn(L) 2 3 | 3329, 3286 | - | 1640 | 694 | 529 | 432 |
Cd(L) 2 4 | 3440, 3391 | - | 1639 | 693 | 528 | 451 |
Sn(L) 2 5 | 3200, 3165 | - | 1643 | 690 | 528 | 432 |