Fullerenes as polyradicals |
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Authors: | Elena F Sheka |
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Institution: | (1) Peoples' Friendship University of Russia, ul. Ordjonikidze, 3, 117923 Moscow, Russia |
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Abstract: | We present the investigation of the electronic structure of X60 molecules (X=C, Si), containing 60 odd electrons with spin-dependent interaction between them. Conditions for the electrons
to be excluded from the covalent pairing are discussed. A computational spin-polarized quantum-chemical scheme is suggested
to evaluate four parameters—energy of radicalization, exchange integral, atom spin density, and squared spin— to characterize
the effect quantitatively. A polyradical character of the species, weak for C60 and strong for Si60, is established. |
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Keywords: | Fullerenes X60 (X=C Si) polyradicals quantum chemistry |
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