Complex formation of mercury(II) chloride with dipeptides

详细

Mixed-ligand complex formation in the HgCl–L systems (L= GlyGly, AlaAla) has been studied by pH potentiometry, calorimetry, and ¹Н and ¹³С NMR spectroscopy in aqueous solutions at 298.15 K and ionic strengths I of 0.5 (KNO₃). The thermodynamic parameters of formation of Hg_nCl_pL_qH_–r (n = 1; p = 0, 1, 2; q = 1, 2; r = 0, 1, 2) complexes have been determined. The most probable coordination modes of the dipeptide molecules in the mixed-ligand complexes were discussed.