Table 2.
Complex | UV-vis (nm)a | 1N NMR (δ)b | μeff (μB)c |
---|---|---|---|
(TPFC)FeIVCl (4a) | 367 (4.31), 394 (4.60) | 3.8, −5.9, −17.1, −49.9 (−20 °C) 4.1, −2.8, −11.6, −36.8 | 2.87 |
(TPFC)FeIV(NO3) (4b) | 396 (4.61) | −4.3, −20.4, −47.2 | 2.89 |
(TPFC)FeIV(OTs) (4c) | 397 (4.63) | −5.0, −13.4, −45.9 | 2.85 |
(TPFC)FeIV(ClO3) (4d) | 397 (4.65) | 2.87 | |
(TPFC)+•FeIII(OTs) (5c) | 379 (4.61), 647 | −3.3, −21.9, −48.0, −52.8 | 2.90 |
(TPFC)+•FeIII(ClO3) (5d) | 380 (4.55), 650 | −4.7, −9.9, −22.4, −61.2 (−20 °C) | 2.95 |
(TPFC)+•FeIII(ClO4) (5e) | 378 (4.53) | ||
(BPFMC)FeIVCl (6a) | 364 (4.30), 390 (4.56) | ||
(BPFMC)FeIV(NO3) (6b) | 398 (4.64) | ||
(BPFMC)FeIV(ClO3) (6d) | 394 (4.63) | ||
(BPFMC)+•FeIII(ClO3) (7d) | 381 (4.52) |
In CH3CN at room temperature; log ε values are in parentheses.
In CD3CN at 22 °C unless noted.
Effective magnetic moment measured in CD3CN at 22 °C.