. . . . . . "Two novel Pt(IV) complexes of aromatic cytokinins with possible antitumor properties were prepared by reaction of selected aminopurines with K2PtCl6. The structures of both complexes, 9-[6-(benzylamino)purine] pentachloroplatinate (IV) and 9-[6-(furfurylamino)purine] pentachloroplatinate (IV), were characterized in detail by using two-dimensional NMR spectroscopy (1H, 13C, 15N, and 195Pt) in solution and CP/MAS NMR techniques in the solid state. We report for the first time the X-ray structure of a nucleobase adenine derivative coordinated to Pt(IV) via the N9 atom. The protonation equilibria for the complexes in solution were characterized by using NMR spectroscopy (isotropic chemical shifts and indirect nuclear spin\u2013spin coupling constants) and the structural conclusions drawn from the NMR analysis are supported by relativistic density-functional theory (DFT) calculations."@en . "Adenine; 15N NMR spectroscopy; Platinum; Relativistic DFT; Spin-orbit; Protonation"@en . . "9"^^ . . "000300474700027" . "0020-1669" . "[8D99E558730E]" . . "3" . . . "Platinum-Modified Adenines: Unprecedented Protonation Behavior Revealed by NMR Spectroscopy and Relativistic Density-Functional Theory Calculations" . "http://dx.doi.org/10.1021/ic201595e" . "RIV/00216224:14740/12:00057245" . "Platinum-Modified Adenines: Unprecedented Protonation Behavior Revealed by NMR Spectroscopy and Relativistic Density-Functional Theory Calculations" . . "Inorganic Chemistry" . "Platinum-Modified Adenines: Unprecedented Protonation Behavior Revealed by NMR Spectroscopy and Relativistic Density-Functional Theory Calculations"@en . . . "Demo, Gabriel" . . "Marek, Radek" . . . "14740" . . "RIV/00216224:14740/12:00057245!RIV13-GA0-14740___" . . "V\u00EDcha, Jan" . . "P(ED1.1.00/02.0068), P(GAP206/11/0550), P(GAP206/12/0539)" . "10.1021/ic201595e" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "51" . "158900" . . "3"^^ . . "Two novel Pt(IV) complexes of aromatic cytokinins with possible antitumor properties were prepared by reaction of selected aminopurines with K2PtCl6. The structures of both complexes, 9-[6-(benzylamino)purine] pentachloroplatinate (IV) and 9-[6-(furfurylamino)purine] pentachloroplatinate (IV), were characterized in detail by using two-dimensional NMR spectroscopy (1H, 13C, 15N, and 195Pt) in solution and CP/MAS NMR techniques in the solid state. We report for the first time the X-ray structure of a nucleobase adenine derivative coordinated to Pt(IV) via the N9 atom. The protonation equilibria for the complexes in solution were characterized by using NMR spectroscopy (isotropic chemical shifts and indirect nuclear spin\u2013spin coupling constants) and the structural conclusions drawn from the NMR analysis are supported by relativistic density-functional theory (DFT) calculations." . . "Platinum-Modified Adenines: Unprecedented Protonation Behavior Revealed by NMR Spectroscopy and Relativistic Density-Functional Theory Calculations"@en . "3"^^ .