Table 2. Photophysical Properties of Representative 5d Metallocorroles in Anoxic Toluene at 23 °Ca.
absorbance maxima (nm) |
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compound | Soret | Q | Q | emission maximum (nm) | lifetime (μs) | rel. quantum yield (%)b | ref |
Re[TpCF3PC](O) | 440 | 553 | 586 | 777 | 74 | 1.52 | (61) |
Os[TpCF3PC](N) | 444 | 553 | 593 | 779 | 183 | 0.39 | (60) |
Ir[TpCF3PC)]py2 | 416 | 602 | 836 | 5.6 | ∼0.04 | (37) | |
PtIV[TpCF3PC](m-C6H4CN)(py) | 430 | 569 | 595 | 813 | 23 | 0.27 | (40) |
Au[TpCF3PC] | 424 | 564 | 576 | 788 | 98 | 0.19c | (59) |
Pt[TPTBP]b | 430 | 564 | 614 | 770 | 48 | 21 | (63) |
λex = 560–614 nm (at approximately the Q-band maximum).
Unless otherwise mentioned, Pt(II) tetraphenyltetrabenzoporpyhrin (Pt[TPTBP]),63 was used as the reference for quantum yield measurements.
This quantum yield is relative to that for fluorescence of rhodamine 6G in ethanol.