Octahedral cobalt(III) complexes of the chloropentammine type. Part III. The solvolytic aquation and basic hydrolysis of cis-chloro-n-propylamine- and cis-chloroisopropylamine-bis(ethylenediamine)-cobalt(III) cations
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 134-138
- https://doi.org/10.1039/j19660000134
Abstract
Nitrates of one iosmeric form of the chloro-n-propylamine- and chloroisopropylamine-bis(ethylenediamine)-cobalt(III) cations have been prepared and characterised. They are assigned a cis-configuration on the basis of infrared observations. The first-order rate constants for the solvolytic aquation of these cations have been determined at different temperatures and the Arrhenius parameters calculated. These results have been discussed in terms of a unimolecular rearrangement between the solvation shell and the co-ordination shell of the complex. The second-order rate constants for the hydrolysis by base of these cations have also been determined at 0° and ionic strength 0·1M. These results are consistent with an SN1/P mechanism.Keywords
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