Rate constant of triplet energy transfer (k_TET), the triplet energy gap (ΔE_T) between the sensitizer and azobenzene, and the triplet energy (E_T) of the azobenzene derived from the quenching results.

Pair	k TET (M−1 s−1)	ΔET (kBT)	ΔET (meV)	E T (eV)
E-TFA/PdP	8.7 × 108	−1.3	−34	1.49–1.52
E-TFA/PtP	1.1 × 109	−4.7	−120
Z-TFA/PdP	8.1 × 108	−1.0	−26	1.52–1.56
Z-TFA/PtP	9.7 × 108	−2.0	−52
E-FPA/PdP	2.8 × 108	1.1	29	1.58–1.63
E-FPA/PtP	3.6 × 108	0.7	18
Z-FPA/PdP	2.4 × 108	1.3	34	1.58–1.65
Z-FPA/PtP	2.2 × 108	1.4	36