σ-Bonded organotransition-metal ions. Part VII. Kinetics and mechanism of the acid- and base-catalysed decomposition of the secondary α-(2-pyridio)ethylpentacyanocobaltate(III) ion
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 929-933
- https://doi.org/10.1039/j19680000929
Abstract
The air-stable secondary α-(2-pyridio)ethylpentacyanocobaltate(III) ion has been prepared in aqueous solution. The kinetics and products of its decomposition have been studied in from 9M-perchloric acid to 0·1 M-sodium hydroxide. Four distinct modes of decomposition have been detected. In alkaline solution 2-vinylpyridine and hydridopentacyanocobaltate(III) ion are formed reversibly. In solutions of intermediate pH (0–6), a multistage reaction involving initial loss of a cyanide ligand is believed to take place. In 1–5M perchloric acid a one-proton-catalysed insertion of a hydrogen isocyanide ligand occurs and in stronger acid a two-proton-catalysed insertion of a hydrogen isocyanide ligand also occurs. The mechanisms of these reactions are discussed.Keywords
This publication has 0 references indexed in Scilit: