Figure 4.

Absorbance of 2 and 3 (0.125 mm) in argon‐purged methanol (left; at 300 and 480 nm) and acetonitrile (right; at 310 and 458 nm) during irradiation (λ _exc=365 nm). The initial absorbance at 300/310 and final absorbance at 458/480 nm were used for normalization.