Although ozone has very weak absorption bands in the visible light region, a kind of complexes composed of ozone and a molecule has intense absorption bands in the region. In addition, upon visible light irradiation, an oxygen-atom moving occurs from ozone to the molecule. For example,ozone-dimethylamine conmpex isolated in the low-temperature matrix yields dimethylamine-N-oxide with O2 upon red-light irradaition. The photoproduct changes into N,N-dimethylhydroxylamine by intramolecular hydrogen-atom migration upon UV irradiation. K. Kamata, N. Akai, M. Nakata, “Red-light induced photoreaction of ozone-dimethylamine complex; matrix-isolation infrared spectra of dimethylamine-N-oxide and N,N-dimethylhydroxylamine” Chem. Phys. Lett. 707, 49–53 (2018).
