Table 3.
End-on Peroxo Species with PY1 Based Tetradentate Ligands
| LMCT; nm (M−1cm−1) | Solvent, Temp | ν(O-O); Δ(18O2); cm−1 |
|||
|---|---|---|---|---|---|
| TMPA6 | 440 (1,700) | 525 (11,300) | 615 (5,800) | EtCN, −80 °C | 832; −44a |
| TMPA55 | 430 (2,100) | 520 (12,000) | 590 (8,000) | MeTHF, −128 °C | - |
| LMIm | 435 (1,700) | 528 (6,800) | 605 (4,000) | MeTHF, −128 °C | - |
| LEIm | 445 (2,500) | 535 (11,000) | 610 (8,100) | MeTHF, −128 °C | 822; −46b |
| D1 56 | 450 (1,100) | 540 (11,100) | 600 (8,700) | EtCN, −90 °C | - |
| TMPAE56 | 445 (2,000) | 532 (9,380) | 590 (7,000) | EtCN, −80 °C | - |
| Me2-uns-penp57 | - | 528 (−) | EtCN, −90 °C | - | |
| uns-penp58 | - | 535 (−) | Acetone, −90 °C | - | |
| BPIA29 | 440 (2,000) | 535 (11,500) | 600 (7,600) | EtCN, −80 °C | - |
| BPQA59 | - | 535 (8,600) | 600 (~6,000) | EtCN, −80 °C | - |
| PMEA60 | - | 536 (~5,000) | EtCN, −90 °C | - | |
| Me1-TPA61 | 440 (−) | 537 (~5,000) | 610 (−) | Acetone, −70 °C | - |
| Others2,13 | ~ 500 | ~ 600 | - | 812–847 | |
a
in CH2Cl2
b
in THF
