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We have investigated the reduction of Nickel-tetraphenyldithiolene by 2-aminonaphthalene with Ru(bipy) 3  2+  as a photocatalyst and found a quantum yield of approximately 1 % for the conditions of our homogeneous system. The lifetime of Ru(bipy) 3  2+  is increased from 600 to 800 ns when micelle formation in aqueous solutions of anionic surfactants takes place. No such change.in lifetime is found in nonionic micelles. In a three compartment system the light driven electron transport from one aqueous compartment containing the Ru(bipy) 3  2+ /EDTA system through a membrane containing Ni-dithiolene in an organic solvent to tbe second aqueous compartment containing Na 3 [Fe(CN) 6 ] is investigated. It is shown that direct electron transfer from the excited ruthenium complex to Ni-dithiolene across the phase boundary can be effected by the action of an anionic surfactant.

Light-induced Electron Transfer from Tris(2,2′-bipyridine)ruthenium(II) 2+ to a Nickeldithiolene in Homogeneous and Heterogeneous Systems