Compound | ν (N-H) | ν (C=O) | ν (N-N) | ν (C=N) | ν (C=N-N=C) | ν (C-O) | Cu-O | Cu-N |
precursor L1 C1 L2 C2 L3 C3 L4 C4 L5 C5 | 3282 3377 - 3229 - 3225 - 3222 - 3291 - | 1671 (vs) 1699 (vs) - 1645 - 1653 - 1636 (vs) - 1642 - | - 976(w) 986(s) 957 986 964 980 960 (w) 976 963 (s) 974 | - 1590(s) 1537 (s) 1550 1537 1587 1509 1586 (s) 1553 1587 1564 | - - 1610 (sh) - 1600 (sh) - 1615 (sh) - 1609 (sh) - 1612 | - - 1371(s) -
- 1323 (s) - 1372 (s) - 1357 | - - 561 -
- 570 - 556 - 511 | - - 482 -
- 485 - 490 - 480 |