pH-Potentiometric Investigation towards Chelating Tendencies of -Hydroquinone and Phenol Iminodiacetate Copper(II) Complexes
Figure 4
Species distribution (% formation relative to Cu2+) in the Cu(II)-bicah system with metal-to-ligand molar ratio 1 : 2 concentration (bicah 5.00 mmol ) as a function of pH over the range 2.00–10.0 (, mol KCl, , and ). The Cu(II) species are as follows: (a) [Cu2(bicah)(H2O)2], (b) [Cu2(Hbicah)(H2O)2]−, (c) [Cu2(bicah)(H2O)2]2−, (d) [Cu2(bicah)(OH)(H2O)]3−, and (e) [Cu2(bicah)(OH)2]4−.
