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C 60 and C 70 fullerene isomers generated in flames. Detection and verification by liquid chromatography/mass spectrometry analyses
Author(s) -
Anacleto Joseph F.,
Perreault Hélène,
Boyd Robert K.,
Pleasance Stephen,
Quilliam Michael A.,
Sim P. Greig,
Howard Jack B.,
Makarvovsky Yakov,
Lafleur Arthur L.
Publication year - 1992
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290060313
Subject(s) - fullerene , chemistry , mass spectrometry , toluene , analytical chemistry (journal) , fullerene chemistry , mass spectrum , combustion , carbon fibers , chromatography , organic chemistry , materials science , composite number , composite material
Fullerenes C 60 and C 70 , generated by combustion, have been shown previously to be produced in controlled laminar flames accompanied by other compounds having fullerene‐like characteristics. Analysis of these additional compounds by hith‐performance liquid chromatography, coupled on‐line with mass spectrometry has identified them as isomers of the C 60 and C 70 fullerenes. The newly observed isomers have characteristic UV spectra and are thermally unstable, undergoing conversion to the more stable fullerenes with a half‐life of about 1 h in boiling toluene (111°C). Isomers of C 60 and C 70 fullerenes previously have been studied theoretically, but not observed experimentally. The flame‐generated material also contains C 60 O and C 70 O compounds, as well as C 76 and higher carbon clusters.