title: Electron-acceptor-induced isomerization of aryl [6,5] open fulleroids to [6,6] closed methanofullerenes and the electrochemical evaluation of their free energy difference.
abstract: The thermal and photochemical rearrangements of a series of aryl substituted [6,5] open fulleroids to [6,6] closed methanofullerenes are accelerated in the presence in of electron acceptors. These [6,5] open fulleroids, facilitated by electron acceptors, rearrange thermally by a zwitteronic-type intermediate, while the photochemical reactions proceed via an excited-state electron-transfer process. The oxidation potentials of these [6,5] open fulleroids and their corresponding [6,6] closed methanofullerenes isomers have been evaluated. The free energy difference between the [6,5] open fulleroids and their corresponding [6,6] closed isomers have been estimated from the difference in their oxidation potentials.
authors.affiliation: Department of Chemistry and Physics, LaGrange College, LaGrange, Georgia 30240, USA. mhall@lagrange.edu
authors.forename: Melvin H
authors.initials: MH
authors.lastname: Hall
authors.forename: Philip
authors.initials: P
authors.lastname: Shevlin
authors.forename: Huajun
authors.initials: H
authors.lastname: Lu
authors.forename: Anthony
authors.initials: A
authors.lastname: Gichuhi
authors.forename: Curtis
authors.initials: C
authors.lastname: Shannon