Palladinm(II) mixed ligand complexes with purine or pyrimidine and imidazole derivatives were prepared and characterized by i.r., Raman and electronic spectroscopy. The compounds have the general formula [Pd(L1)(L2)X2)]; wherc L 1 =adenine, guanine, hypoxanthine, cytosine, 2-aminopyrimidine, 4(6)-hydroxypyrimidine; L 2 = Nmethylimidazole, N-ethylimidazole or N-propylimidazole; X = C1 or Br. The complexes are square planar with cis-halogens. The purine, pyrimidine and imidazole bases act as monodentate ligands coordinated via the N(7) of purine and N(3) of pyrimidine and imidazole.
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