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Isolation and Characterization of Two Esr–Active La@C82 Isomers

Published online by Cambridge University Press:  15 February 2011

Kazunori Yamamoto
Affiliation:
Nuclear Fuel Technology Development Division, Tokai Works, Power Reactor & Nuclear Fuel Development Corporation, Tokai, Ibaraki, 319–11, Japan
Hideyuki Funasaka
Affiliation:
Nuclear Fuel Technology Development Division, Tokai Works, Power Reactor & Nuclear Fuel Development Corporation, Tokai, Ibaraki, 319–11, Japan
Takeshi Takahashi
Affiliation:
Nuclear Fuel Technology Development Division, Tokai Works, Power Reactor & Nuclear Fuel Development Corporation, Tokai, Ibaraki, 319–11, Japan
Takeshi Akasaka
Affiliation:
Department of Chemistry, University of Tsukuba, Tsukuba, 305, Japan
Toshiyasu Suzuki
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki, 444, Japan
Yusei Maruyama
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki, 444, Japan
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Abstract

Two abundant ESR-active lantanofullerene species have been isolated with an efficient HPLC method. Each of isolated species was well identified as a stable metallofullerene molecule. Both mass and ET 9 spectra confirmed that they were La@C82 with 1.159-G and 0.836-G 139La hyperfine splittings. Visible and near-IR absorption spectra, cyclic and differential pulse voltammograms, and 13 C hyperfine splitting structures in ESR spectra for the samples showed features quite different from each other. Their differences were discussed on the basis of their structures.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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References

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