Ligand/Chelate | υNO2 | υOH(H2O) | υNH2 | υC=N | υM-O | υM-N | nm (cm−1) |
Schiff Base (L1) | - | 3337 | - | 1588 | - | - | 375 (26,666) |
2-nitroaniline (L2) | 1507 | - | 3349 | - | - | - | 282 (35,461), 318 (31,447) |
[Cr(L1L2)(OH)2]・6H2O | 1507 | 3480 | 3375 | 1597 | 746 | 523 | 385 (25,974) |
[Co(L1L2)(OH)(H2O)]・6H2O | 1482 | 3410 | 3300 | 1600 | 641 | 537 | 413 (24,213), 754 (13,263) |
[Ni(L1L2)(OH)(H2O)]・6H2O | 1488 | 3408 | 3316 | 1600 | 748 | 441 | 294 (34,014), 396 (25,253) |
[Cu(L1L2)(OH)(H2O)]・3H2O | 1508 | 3487 | 3347 | 1597 | 746 | 521 | 387 (25,840), 797 (12,547) |