Popis: |
Mixed ligand complexes of cis-dichloroethionine palladium(II) with adenine, adenosine, guanine, guanosine, hypoxanthine, inosine, cytosine and cytidine were synthesised and characterised by elemental analysis, conductivity data, IR and 1H NMR spectral studies. In all these mixed ligand complexes the ethionine molecule coordinates to the palladium through the amino nitrogen and sulphur atoms, thus leaving a free carboxylic acid group. In the complexes of purines and their corresponding nucleosides, the ligand binding site to the metal ion is N7, whereas in the case of pyrimidine and their corresponding nucleosides it is N3. |