title: A proton magnetic resonance investigation on 1:1 cytidine and guanosine silver(I) complexes.
abstract: Solid 1:1 silver (I) complexes with cytidine and guanosine have been isolated from aqueous solutions at pH 10. PMR spectra in deuterodimethylsulfoxide-d6 solutions have been measured. Results show that binding sites for cytidine are the nitrogen atom of the NH2 group and N-3. In the Agguanosine complex, pmr data are in agreement with the formation of a chelate ring involving N-7 and O-6. Chemical shift changes of the amino protons show that NH2 is also another binding site.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003562:Cytidine; D006151:Guanosine; D009682:Magnetic Resonance Spectroscopy; D012834:Silver
chemical_list: D006151:Guanosine; D012834:Silver; D003562:Cytidine