DISCRETE RADICAL SPECIES DEPENDENT UPON SOLVENT AS DETECTED BY CIDNP IN THE LIGHT-INDUCED ELECTRON TRANSFER FROM HYDROQUINONES TO PHEOPHYTIN α

Article abstract of DOI:10.1246/cl.1981.1509

Light-induced electron transfer from hydroquinones to Phe α was studied by means of CIDNP technique.Depending upon the solvent, electron transfer proceeds in different manners.In benzene, ion radical pair; hydroquinone cation radical and Phe α^.-, of the triplet spin multiplicity was formed, whereas neutral radical pair; phenoxyl radical and Phe α-H^., of the singlet spin multiplicity in methanol.