Influence of electrolytic dissociation upon rates of reactions. Part V. Retardation of base hydrolyses of halogenopenta-amminecobalt(III) ions by anions
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 1624-1627
- https://doi.org/10.1039/j19690001624
Abstract
The base hydrolysis rates of chloro-, bromo-, and iodo-penta-amminecobalt(III) at 25° are retarded by sulphate and several dicarboxylates. This is ascribed to ion-paring. The effects are generally related to the ion-pair dissociation constants and the retardations decrease with increasing halide size for a particular ligand. Some evidence is cited to support a recent assertion that Chan's claim, that there is kinetic evidence of significant complex ion–hydroxide ion-pairing, is untrue.Keywords
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