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Contrasting free energies of electron transfer from [6] and [8]annulenes to their perdeuteriated-per-13C analogues
Stevenson,Peters,Reidy
, p. 6151 - 6154 (2007/10/02)
EPR analyis shows that the equilibrium isotope effect upon the equilibrium constant for electron transfer between isotopic isomers is much larger in [6]annulene (i.e. C6H6-·+13C6D6 = C6H6 + 13C6D6-·) than in the [8]annulene systems (i.e. C8H8-· + 13C8D8 = C8H8 + 13C8D8-·). This is due to the effects of aromaticity.
