title: Transalkylation of higher trifluoromethylated fullerenes with C70: a pathway to new addition patterns of C70(CF3)8.
abstract: We report three new isomers of C70(CF3)8, structurally related to p(7)mp-C70(CF3)10, that are inaccessible by direct trifluoromethylation, but can be easily identified among the products of the transalkylation of higher trifluoromethylfullerenes with C70. The reported compounds are characterized by UV/Vis, 1 D and 2 D COSY (19)F NMR spectroscopy, and DFT calculations. A rather unusual addition pattern is observed in p(6),i-C70(CF3)8 in which one addend is attached remotely from the others; polarization of the adjacent unsaturated bonds by the addend makes the molecule readily oxidizable.
authors: Chemistry Department, M. V. Lomonosov Moscow State University, Leninskie Gory, 119991, Moscow (Russia), Fax: (+7) 495-939-12-40.
authors: Nikita M
authors: NM
authors: Belov
authors: Marina G
authors: MG
authors: Apenova
authors: Alexey V
authors: AV
authors: Rybalchenko
authors: Eugenia V
authors: EV
authors: Borkovskaya
authors: Natalia S
authors: NS
authors: Lukonina
authors: Alexey A
authors: AA
authors: Goryunkov
authors: Ilya N
authors: IN
authors: Ioffe
authors: Sergey I
authors: SI
authors: Troyanov
authors: Lev N
authors: LN
authors: Sidorov
keywords: NMR structural elucidation; addition patterns; density functional calculations; transalkylation; trifluoromethylfullerenes