Isolation of an ESR-active metallofullerene of La C[sub 82]
- Power Reactor Nuclear Fuel Development Corporation, Ibaraki (Japan)
- Univ. of Tsukuba, Ibaraki (Japan)
The ESR-active lanthanofullerene La C[sub 82] has been isolated from various hollow fullerenes by an efficient single-stage chromatographic separation process. Pyrenylethyl-silica was used as a stationary phase with toluene as an eluent. Lanthanum-containing fullerenes were prepared by the arc heating of metal-impregnated graphite rods in a He atmosphere. Fast atom bombardment mass analysis of the isolated sample confirmed the isolation of La C[sub 82]. ESR absorption spectra of the present sample prove the separation of a La C[sub 82] isomer with a 1.15-G hyperfine splitting. The UV-vis-near-IR absorption spectra of the sample reveal near-IR absorption peaks which are characteristic of the fullerene radical anions. 40 refs., 4 figs.
- OSTI ID:
- 7233044
- Journal Information:
- Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:8; ISSN JPCHAX; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKYLATED AROMATICS
AROMATICS
CALCULATION METHODS
CARBON
CHROMATOGRAPHY
COMPLEXES
ELECTRON SPIN RESONANCE
ELEMENTS
FULLERENES
HARTREE-FOCK METHOD
HYDROCARBONS
INFRARED SPECTRA
LANTHANUM COMPLEXES
MAGNETIC RESONANCE
NONMETALS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
RARE EARTH COMPLEXES
RESONANCE
SEPARATION PROCESSES
SPECTRA
SYNTHESIS
TOLUENE