Characterization of naturally-occurring and modified fullerenes by Fourier transform mass spectrometry
Conference
·
· AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:5358373
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6120 (United States)
- Department of Geology, Arizona State University, Tempe, Arizona 85287 (United States)
Fourier transform mass spectrometry (FTMS) employing both laser desorption/ionization and thermal desorption/electron ionization is useful for the detection and structural characterization of fullerenes and chemically-modified fullerenes. Examination of a carbon-rich shungite rock sample from Russia by transmission electron microscopy and FTMS provided evidence of naturally-occurring fullerenes. Ion-molecule reactions can be studied with FTMS to investigate the electron affinities of modified fullerenes. By monitoring charge exchange reactions, the electron affinities of C[sub 60]F[sub x] (x=44,46) and C[sub 70]F[sub y] (y=52,54) were found to be substantially higher than the values for the parent fullerenes.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5358373
- Report Number(s):
- CONF-9304144--
- Conference Information:
- Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 288:1
- Country of Publication:
- United States
- Language:
- English
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