Isolation and characterization of an ESR-active LaC[sub 82] isomer

Journal Article · Thu Dec 08 04:00:00 EST 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100100a006· OSTI ID:6617775

Yamamoto, Kazunori; Funasaka, Hideyuki; Takahashi, Takeshi ^[1]; Akasaka, Takeshi ^[2]; Suzuki, Toshiyasu; Maruyama, Yusei ^[3]

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1. Power Reactor Nuclear Fuel Development Corporation, Ibaraki (Japan)
2. Univ. of Tsukuba, Ibaraki (Japan)
3. Inst. for Molecular Science, Okazaki (Japan)

A minor isomer of LaC[sub 82] has been isolated with an efficient HPLC method. The isolated minor LaC[sub 82] was well identified as a stable metallofullerene molecule. Both mass and ESR spectra confirmed that it was LaC[sub 82] with a 0.836-G [sup 139]La hyperfine splitting. Visible and near-IR absorption spectra, cyclic and differential pulse voltammograms, and [sup 13]C hyperfine splitting structures in an ESR spectrum for the sample showed features quite different from those for the major isomer of LaC[sub 82] with a 1.159-G [sup 139]La hyperfine splitting. We concluded that isolated species is a carbon-cage isomer of the major LaC[sub 82]. 12 refs., 4 figs.

• OSTI ID: 6617775
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:49; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
400400 -- Electrochemistry
CARBON
CHROMATOGRAPHY
COMPLEXES
ELECTRON SPIN RESONANCE
ELEMENTS
FULLERENES
INFRARED SPECTRA
ISOMERS
LANTHANUM COMPLEXES
LIQUID COLUMN CHROMATOGRAPHY
MAGNETIC RESONANCE
MASS SPECTROSCOPY
NONMETALS
RARE EARTH COMPLEXES
RESONANCE
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
VOLTAMETRY