Table 5. The quantum yield of singlet oxygen production (Φ_so) by 2a, 2c and reported Ir^III–porphyrin and corrole complexes.

Complex	Φ so
2a	0.64 a
2c	0.88 a
[IrIII(corrole)(pyridine)2]	0.09–0.15 a 29
[IrIII(ttp)(aza-BODIPY)]	0.79–0.85 b 16d

^aMeasured in CHCl₃ with reference to the ¹O₂ emission intensity of H₂tpp.

^bMeasured in CH₂Cl₂ with reference to the photooxidation of 1,3-diphenylisobenzofuran by methylene blue.