Endohedral Encapsulation of Lithium in C70


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A new diatomic molecule-containing endohedral fullerenes were prepared by ion implantation technique (introducing negatively charged C70 into a low temperature lithium plasma column by a strong exial magnetic field).The species prepared were Li@C70 and Li2@C70 and ionized by surface ionization. Their existance was demonstrated through high sensitivity, magnetic mass spectrometer. The corresponding endohedral ions undergo the Rice shrinkwrap mechanism: a mass –analyzed ion spectrum demonstrates the loss of a C2 unit from the cage. The observed ionization energies of endohedral molecules were 5.1 " 0.1 eV and 5.3 " 0.1 eV, respectively.



Materials Science Forum (Volumes 480-481)

Edited by:

A. Méndez-Vilas




M. Veljković et al., "Endohedral Encapsulation of Lithium in C70", Materials Science Forum, Vols. 480-481, pp. 351-354, 2005

Online since:

March 2005




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