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Endohedral Encapsulation of Lithium in C70

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Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 480-481)

Pages:

351-354

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.480-481.351

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Online since:

March 2005

Authors:

M. Veljković, O. Nešković, Tamara Ivetić, S. Veličković, Tatjana Maksin

Keywords:

Cluster, Endohedral Metalofullerenes, Ionization Energies, Mass Spectrometry

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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