Table 4.
Fe–O and O–O stretching frequencies of 2•O2X and 3•O2X complexes determined using resonance Raman spectroscopy.
| O2X | 2•O2X | 3•O2X | ||
|---|---|---|---|---|
| νFe-O (cm−1) [18O] |
νO-O (cm−1) [18O2] |
νFe-O (cm−1) [18O] |
νO-O (cm−1) [18O2] |
|
| O2AsMe2 | 464 [433] | 845 [796] | -- | -- |
| O2PMe2 | 467, 479 [449, 460] | 839 [791] | -- | -- |
| O2PPh2 | 465, 476 [455] | 845, 853 [807] | 477 [458] | 897 [848] |
| O2P(OPh)2 | 457, 469 [436, 446] | 851 [806] | 479 [460] | 897 [845] |
| O2CCPh3 | 466, 474 [447, 454] | 841 [792] | 466, 479 [448, 456] | 903, 917 [857] |
| O2CCMe3 | -- | -- | 466, 475 [447, 457] | 897, 912 [846] |
| O2CPha | -- | -- | 476 [460] | 900 [850] |
| O2CC6H2-3,4,5-(OMe)3 | -- | -- | 465, 476 [449, 457] | 900, 914 [853] |
| O2CC6H3-3,4-(OMe)2 | -- | -- | 466, 474 [449, 456] | 898, 912 [847] |
| O2CC6H3-3,5-(OMe)2 | -- | -- | 465, 476 [449, 458] | 899, 913 [848] |
| O2CC6H4-4-OMe | -- | -- | 466, 474 [448, 457] | 899, 913 [847] |
a
Values from reference 42.