Computer Science – Performance
Scientific paper
Jul 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997m%26ps...32..479b&link_type=abstract
Meteoritics, vol. 32, pages 479-487
Computer Science
Performance
18
Scientific paper
In this paper we confirm our earlier observations of fullerenes (C60 and C70) in the Allende meteorite (Becker et al., 1994a, 1995). C60 was also detected in two separate carbon-rich (~0.5 - 1.0 %) dark inclusions (Heymann et al., 1987) that were hand picked from the Allende sample. The amounts of C60 detected were ~5 and ~10 ppb respectively, considerably less then what was detected in the Allende 15/21 sample (~100 ppb; Becker et al., 1994a, 1995), suggesting that fullerenes are heterogeneously distributed in the meteorite. In addition, we present evidence for fulleranes (C60Hx), detected in separate samples by laser desorption (reflectron) time-of-flight (TOF) mass spectrometry (LDMS). LDMS spectra for the Allende extracts were remarkably similar to the spectra generated for the synthetic fullerane mixtures. Several fullerane products were synthesized using a rhodium catalyst (Becker et al., 1993a) and separated using high performance liquid chromatography (HPLC). Polycyclic aromatic hydrocarbons (PAHs) were also observed (ppm levels) including benzofluoranthene and corannulene, a cup-shaped molecule that has been proposed as a precursor molecule to the formation of fullerenes in the gas phase (Pope et al., 1993).
Becker Luann
Bunch Ted E.
No associations
LandOfFree
Fullerenes, fulleranes and PAHs in the Allende meteorite does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Fullerenes, fulleranes and PAHs in the Allende meteorite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fullerenes, fulleranes and PAHs in the Allende meteorite will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1414864