“…Before starting a test on the photocatalytic reactivity of 4, we calculated its excited-state energy (E 0,0 ) and its excited-state reduction [E 1/2 (C +* /C • )] and oxidation potentials [E 1/2 (C •++ /C +* )], based on previously reported data 18b, 19 and our own experimental measurements. 23 The excitation energy (E 0,0 ) was estimated by calculating the energy of the wavelength intersection between normalized absorption and emission spectra of 4. 3a The excited-state reduction potential E 1/2 (C +* /C • ) was estimated from the expression E 1/2 (C +* /C • ) = E 1/2 (C + /C • ) + E 0,0 , and the excited-state oxidation potential E 1/2 (C •++ /C +* ) was estimated from the expression E 1/2 (C •++ /C +* ) = E 1/2 (C •++ /C + ) -E 0,0 .…”