Relative electron-donating ability of simple alcohol radicals toward 12-heteropolytungstates. A pulse radiolysis study
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 78 (9) , 2769-2772
- https://doi.org/10.1039/f19827802769
Abstract
The pulse-radiolysis technique has been used to study the reaction of one-electron reducing radicals [CH2OH, CH3ĊHOH and (CH3)2ĊOH] with a series of heteropolytungstates, [PW12O40]3–, [SiW12O40]4–, [FeW12O40]5– and [H2W12O40]6–, to produce the corresponding one-electron reduction products. A gradual decrease in rate constants with (a) increasing negative charge and (b) increasing negative reduction potentials of the heteropolyanions is observed. The relative reaction rates increasing negative reduction potentials of the heteropolyanions is observed. The relative reaction rates increase in the sequence ĊH2OH < CH3ĊHOH < (CH3)2ĊOH, which is the same order as that of their electron donating abilities.Keywords
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