Metal Ion Interactions with the Constituents of Nucleic Acid. Part-I : Metal-Adenine Complexes

Department of Chemistry, Jadavpur University, Calcutta-700 032 Manuscript received 10 September 1979, revised 9 February 1982, accepted 23 May 1982 Metal-adenine complexes of the type [Cd(AdH)2Cl2], [Hg2CI2Ad3(AdH)], [Pd2CI2 Ads(AdH)]2H2O and (UO2(Ad)2(H2O)2]H2O have been isolated and charac­terised by analytical, infrared and TGA data. The AdH (neutral adenine) is probably unidentate in the Cd complex whereas in the Hg and Pd complexes, it functions probably as a bidentate bridging ligand, linking two metal ions. In the case of the Pd complex, Ad coordinates through C(6) NH2 and N(7) but in all other cases possibly through N(3) and N(9) atom