New Lanthanoid Metallofullerenes and their HPLC Elution Behavior
- 1 December 1997
- journal article
- research article
- Published by Taylor & Francis in Fullerene Science and Technology
- Vol. 5 (7) , 1435-1448
- https://doi.org/10.1080/15363839708013331
Abstract
HPLC behaviors of metallofullerenes of 14 lanthanoid elements were studied by use of radiotracers, and the species of some of the metallofullerenes were identified by mass spectroscopy. From the HPLC elution behaviors, 14 lanthanoid elements forming metallofullerenes were found to be grouped into two, namely, Sm, Eu, Tm and Yb as one group and the rest of the elements as another. Some new species of metallofullerenes like La@C74, and M@Cn (M=Eu, Tm, Yb; n=74, 82, 84, 88, 90, 92, 94) have been identified. The observed retention times of metallofullerenes are discussed in terms of the number of carbon atoms of the cage and from consideration of the electron donor and acceptor relation between the fullerene species and the HPLC stationary phases.Keywords
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