Table 4 XPS data of the free ligands and their copper complexes
Core level | PCHD | Cu(PCHD)2]ClO4.H2O | PyCHD | [Cu(PyCHD)2]ClO4.H2O |
|---|---|---|---|---|
BE | BE | BE | BE | |
C1s | 284.08 | – | – | – |
C1s a | 284.48 | 284.28 | 284.40 | 285.74 |
C1s b | 285.88 | 285.72 | 285.51 | 287.63 |
C1s c | 290.48 | 287.23 | 288.07 | 290.38 |
N1s | 399.15 | 399.09 | 399.49 | 400.01 |
N1s a | 400.56 | 400.42 | 400.39 | 399.44 |
N1s b | 402.14 | 401.62 | 402.12 | 399.71 |
N1s c | 403.77 | – | 401.44 | – |
N1s f | 397.96 | – | 398.22 | – |
N1s h | – | – | 403.56 | – |
O1s | – | 531.25 | – | 532.94 |
O1s a | – | 532.02 | – | 531.6 |
O1s b | – | 532.02 | – | 528.63 |
Cl2 p a | – | 199.60 | – | 208.70 |
Cl2 p b | – | 196.27 | – | 204.73 |
Cl2 p c | – | 207.10 | – | 207.11 |
Cl2 p d | – | 201.12 | – | – |
Cu2p a | – | 932.24 | – | 952.37 |
Cu2p b | – | 952.39 | – | 932.47 |