Charge-transfer ionspray liquid chromatography/mass spectrometry analyses of fullerenes and related compounds from flame-generated materials

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1002/rcm.1290070313
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Name affiliation
  1. National Research Council of Canada. NRC Institute for Marine Biosciences
  2. National Research Council of Canada. NRC Institute for National Measurement Standards
FormatText, Article
Journal titleRapid Communications in Mass Spectrometry
ISSN0951-4198
1097-0231
Volume7
Issue3
Pages229–234
Abstract
A flame-generated, fullerene-rich material (J. B. Howard et al., Nature 352, 139 (1991)) has been characterized by liquid chromatography coupled on-line to ionspray mass spectrometry. Charge-transfer complexation, using a post-column addition of either an electron donor or acceptor, was utilized as a pre-ionization technique. Analyses in the positive-ion mode showed that the thermally metastable constituents of the flame-generated material, tentatively identified previously (J. F. Anacleto et al., Rapid Commun. Mass Spectrom. 6, 214 (1992)) as fullerene isomers on the basis of atmospheric pressure chemical ionization muss spectrometry, yielded mass spectra consistent with their identification as fullerene adducts with highly uiuaturated moieties CnH2n−4 with n = 5, 6, and 7. The molecular radical cations of these adduct species were susceptible to facile fragmentation yielding the molecular ions of the corresponding fullerenes. The negative-ion mode experiments failed to provide any information regarding the identity of these metastable constituents.
Publication date
LanguageEnglish
Peer reviewedYes
NPARC number23001063
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