ESI-MS/MS of free (top) and TriplatinNC adducted (bottom) 5′-d(TCTCCCAGCGTGCGCCAT) at 100 and 120 V of collisional energy, respectively. The region of enhanced stability is in red. Fragmentation of the glycosidic bonds is prevalent throughout the free oligonucleotide, while the associated fragment ions, (w82−, w92−, and a9-B shown in red) are absent in the adduct. Additionally, the intensity of a7-B and a8-B is dramatically reduced.