Fig. 2. (a and c) Proposed degradation mechanism of the (a) NB(NO)A model compound and (c) oNBN monomer under light irradiation. (b and d) HPLC profiles recorded at 254 nm for (b) NB(NO)A and (d) oNBN (0.25 mM; CH3CN/H2O, v/v = 1/1 as the eluent) under UV 365 nm irradiation (4 mW cm–2) for varying durations. Coumarin 102 was used as the internal standard in (b).
