title: [Protonization of purine, adenine, and guanine. NMR spectra and structure of mono, di, and tri cations].
mesh_terms: D000225:Adenine; D006147:Guanine; D007477:Ions; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation
chemical_list: D007477:Ions; D006147:Guanine; D000225:Adenine
vernacular_title: Protonierung von Purin, Adenin und Guanin. NMR Spektren und Strukturen der Mono-, Di- und Tri-Kationen.