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Rebuilding C60: Chlorination-Promoted Transformations of the Buckminsterfullerene into Pentagon-Fused C60 Derivativesстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Brotsman V.A., Tamm N.B., Markov V.Yu, Ioffe I.N., Goryunkov A.A., Kemnitz E., Troyanov S.I.
- Журнал: Inorganic Chemistry
- Год издания: 2018
- Издательство: American Chemical Society
- Местоположение издательства: United States
- DOI: 10.1021/acs.inorgchem.8b00976
- Аннотация: In recent years, many higher fullerenes that obey the isolated pentagon rule (IPR) were found capable of rearranging into molecules with adjacent pentagons and even with heptagons viachlorination-promoted skeletal transformations. However, the key fullerene, buckminsterfullerene Ih-C60, long seemed insusceptible to such rearrangements. Now we demonstrate that buckminsterfullerene yet can be transformed by chlorination with SbCl5 at 420−440 °C and report X-ray structures for the thus-obtained library of non-IPR derivatives. The most remarkable of them are non-IPR C60Cl24 and C60Cl20 with fundamentally rearranged carbon skeletons featuring, respectively, four and five fused pentagon pairs (FPPs). Further high-temperature trifluoromethylation of the chlorinated mixture afforded additional non-IPR derivatives C60(CF3)10 and C60(CF3)14, both with two FPPs, and a nonclassical C60(CF3)15F with a heptagon, two FPPs, and a fully fused pentagon triple. We discuss the general features of the addition patterns in the new non-IPR compounds and probable pathways of their formation via successive Stone−Wales rearrangements.
- Добавил в систему: Троянов Сергей Игоревич