Anaerobic photodecomposition of alkylaquocobaloximes in aqueous solution
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 13,p. 1266-1272
- https://doi.org/10.1039/dt9770001266
Abstract
The photochemical decomposition of alkylaquocobaloximes in aqueous solution under anaerobic conditions depends critically on the presence of acid. At pH 2, photoreaction is fast and wavelength-independent (ϕ > 0.1 for several alkyl substituents) and involves the production of aqueous cobalt(II) ion and radical intermediates which yield products typical of abstraction and dimerisation reactions. At pH 7, photoreaction is ca. ten-fold less efficient to yield [CoII(Hdmg)2(OH2)2][Hdmg = dimethylglyoximate(1–)] together with an alk-1-ene derived from the axial alkyl ligand.Keywords
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