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Representations of platinum complexes and ligands used in this study. Top row (left to right): [Pt(en)(D2O)2]2+, [Pt(Me4en)(D2O)2]2+. Bottom row (left to right): Guo, 5′-GMP, N-AcMet, N-AcHis. The charge state that should be dominant at pH 4 is shown.
