Mono- and di-nuclear complexes of (trpy)MII (M = Pd, Pt) with the model nucleobase 1-methylcytosine. Crystal structure and NMR solution studies

Square-Planar Pd(II), Pt(II), and Au(III) Terpyridine Complexes: Their Syntheses, Physical Properties, Supramolecular Constructs, and Biomedical Activities

“…145ridines; further, only weak short-range (distances > 3.88 Å) interactions were observed between Pt metal centers and terpyridine moieties(Figure 56).Single crystal X-ray structures of 138 and 140-146 were reported;35,67,69,[146][147][148][149][150][151][152] however, only complexes 141,149 143,69 and 14567 are depicted in…”

“…Structures of dinuclear 137-148 with short intramolecular distances between metal centers (Pt-Pt and Pd-Pd) and terpyridine moieties 35,67,69,[146][147][148][149][150][151][152][153]. which was attributed to dimer formation of 144 similar to the dark crystal packing.Lowe et al149 prepared a dinuclear complex 149 with a thioacetamine linker, which slowly decomposed in water to form intermediate 150, which abstracted an extra sulfur with a Pt(II) terpyridine moiety of 149 and was converted to a crystalline trinuclear propeller-like complex 151 (Scheme 13).…”

Platinum complexes of terpyridine: Interaction and reactivity with biomolecules

“…Similarly, the reaction of 1-methylcytosine (Hmcyt) with one equivalent of [Pt(terpy)Cl] + in the presence of Ag(I) results in formation of [Pt(terpy)(Hmcyt)] 2+ while using two equivalents of platinum reagent results in the formation of the dimer [{Pt(terpy)} 2 (mcyt)] 3+ [53]. A crystal structure of the monomer reveals binding through the N 3 position of the nucleobase, and 1 H NMR data indicate that this results in a pronounced increase in the acidity of the adjacent amino (N 4 ) group.…”

[Pd(en)(H2O)2]2+ and [Pd(pic)(H2O)2]2+ complexation by monohydroxamic acids: A solution equilibrium and solid state approach

“…diethylenetriamine (dien), terpyridine (terpy)) and Pd(II) are generally used as metal ion sources. Investigation of the interaction of these latter complexes with different bioligands revealed the high preference of the metal core toward soft donor atoms (N-or S-donors) over the hard one(s) [3][4][5][6][7][8][9][10][11][12].…”