Abstract
Two heteronuclear complexes of 1-methylthymine with cis-Pt(NH 3) 2+ 2 and Ag + binding N(3) and O(4), respectively, have been prepared. The structure of one of these compounds, Ag[ cis-Pt(NH 3) 2(C 6H 7N 2O 2) 2] 2·5H 2O, has been determined by X-ray diffraction and refined to R = 0.048 for 4971 reflections. The compound crystallizes in the triclinic space group P 1 and has cell dimensions a = 14.122(11), b = 13.422(23), c = 11.747(12) Å, α = 101.60(10), β = 100.01(8), γ = 95.94(11)° with two formula units in the unit cell. The molecular cation consists of two bis(1-methylthyminato-N3) cis-diammineplatinum(II) units connected by a silver cation via the exocyclic C(4) oxygen atoms. An explanation for the unexpected ligand properties of N(3) platinated 1-methylthymine is proposed.
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