Figure 3.

Observed (black) and simulated (red) EPR spectra of complex 4 in aqueous solution with 5% DMSO showing the formation of DMPO–N₃^• and DMPO–OH^• adducts after irradiation (465 nm). The experimental trace is the accumulation of 500 scans (conversion time 5.12 ms, time constant 5.12 ms, and sweep time 10.48 s for each scan) with continuous irradiation (465 nm). Parameters for simulation: DMPO–N₃^• (g = 2.00583, a_NO^N = 14.5 mT, a_β = 14.2 mT, and a_Nα^N = 0.31 mT); DMPO–OH^• (g = 2.0058, a_NO = 14.5 mT, and a_β^H = 14.2 mT).