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The 0.92-Å resolution structure of two Δ-[Ru(bpy)2(dppz)]2+ complexes intercalated from the minor groove into a duplex 12-mer containing two AA mismatched sites.18 The mismatches are extruded from the base stack by two other Δ-[Ru(bpy)2(dppz)]2+ complexes that are metalloinserted at these sites. The extruded bases (shown in blue) π-stack with the bpy rings of the intercalated metal complexes (interactions shown in black, metal complexes shown in red).
