Abstract
Stability of organometallic complexes in propylene carbonate saturated with water. Part 2. 1,10-Phenanthroline complexes of copper(II), cadmium(II), zinc(II) and lead(II) Complex formation between 1,10-phenanthroline and copper(II), cadmium(II), zinc(II) and lead (II) has been studied in water-saturated propylene carbonate as a preliminary to extraction studies. The measurements are made spectrophotometrically or potentiometrically with selective electrodes. The complexes of copper(II), cadmium(II) and zinc(II) are mononuclear, of the 1:1, 1:2 and 1:3 types; in the case of lead (II) only 1:1 and 1:2 complexes exist. Stability constants for these different species at 25°C and 0.1 M ionic strength are reported.
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