Rsc_cc_b925574e 2426..2428
نویسندگان
چکیده
The population and reactivity of two low-lying excited states in [Ru(bpy)2(dppn)] 2+ (bpy = 2,20-bipyridine, dppn = benzo[i]dipyrido[3,2-a:20,30-c]phenazine), a weakly emissive MLCT state and a long-lived ligand-centered pp* state, lead to efficient photoinduced DNA damage. Irradiation with visible light results in nearly complete DNA cleavage within 30 s (kirr Z 455 nm), likely from the combined action of guanine oxidation and the production of reactive oxygen species derived from O2.
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