Abstract: Cis to trans isomerization of N-methyl-4-(j3-styryl) pyridinium halide (4-MSPX, X= I or C1) via electron-transfer sensitization by R~(bpy),~+ has been studied for some micellar systems under the illumination of 468 f 5 nm light. Efficiencies for the isomerization (4,) were markedly enhanced on addition of anionic surfactans; eg, the quantum yields in the presence of sodium dodecylsulfate (SDS) reached the maximum value of 64 f 2, which is ...
