GOLD(III) COMPLEXES WITH IMIDAZOLE, BENZOXAZOLE, PURINE AND PYRIMIDINE-DERIVATIVES

The synthesis and characterization of Au-III complexes with several he terocyclic ligands are reported. The compounds have general formula [A uX(3)(L)], where L = N-methylimidazole (N-MeIz), N-ethylimidazole (N-E tIz), N-propylimidazole (N-PrIz), benzoxazole (BO), 2-methylbenzoxazol e (2-MeBO), 2,5-dimethylbenzoxazole (2,5-diMeBO), 2-amino-pyrimidine ( 2-APm), 4(6)-hydroxypyrimidine [4(6)-hydrPm] or hypoxanthine (Hypox) a nd X = C1 or Br. Elemental analysis, conductivity measurements and spe ctral studies were used for the characterization of the complexes. A s quare-planar geometry with N-bonded heterocyclic ligands is suggested.