bromine; potassium bromide in water

in neat (no solvent) KAuBr4 prepd. by direct bromination of Au powder in presence of KBr;

glycyl-L-tyrosine in potassium hydroxide gold nanoparticles prepd. by react. glycyl-L-tyrosine with KAuBr4 in aq.KOH; electrochemistry and UV/Vis spectroscopy;

in water-d2 byproducts: 5-bromouridine; equimolar mixt. of Au-complex and uridine in D2O was reacted for 6 d; detected by (1)H NMR spectra;

sulfuric acid; sodium bromide in water Kinetics; byproducts: bromohydrine, 5-bromouridine; dilute solns. of Au-complex and uridine in distd. water were reacted at25°C in the presence of H2SO4 and NaBr, ionic strength 1.1 mol/dm**3 (NaNO3); followed spectrophotometrically;