Abstract

[Ru(bpy)2(py-SO3)](+) (bpy = 2,2'-bipyridine and py-SO3 = pyridine-2-sulfonate) was found to undergo py-SO3 dissociation upon visible light irradiation (≥470 nm) via Ru-O homolysis, producing reactive free radical species, and is thus able to not only photobind but also photocleave DNA in hypoxic conditions.

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