Supramolecular self-assembly of metal complex surfactants (MeCS) into micellar nanoscale reactors in aqueous solution

Surfactants are amphiphilic molecules that can form micellar structures with a hydrophobic core and a hydrophilic corona in water. In this work, we combine the remarkable properties of photoactive metal complexes with the supramolecular organization of surfactants to create photoactive vessels that support photocatalytic processes in aqueous media, even for starting materials that are insoluble in water. Herein, we report a library of photoactive metal complex surfactants (MeCSs) and their photophysical and photochemical properties. These properties are modulated by the length of an alkyl chain attached to the polypyridyl ligand of the metal complex. Finally, an alkene hydroxytrifluoromethylation photocatalytic reaction was demonstrated in aqueous solution, suggesting the usefulness of metal complex surfactants for the development of green aqueous photoreactions.