PACS. 33.15.Kr Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility - 34.70.+e Charge transfer - 61.48.+c Fullerenes and fullerene-related materials
Springer Online Journal Archives 1860-2000
Abstract: We have measured the electric dipole moment of isolated alkali-C60 molecules (with alkali = Li, Na, K, Rb, and Cs) by molecular beam deflection experiments. The dipole increases from 12.4 D for LiC60 to 21.5 D for CsC60. These results are compared to those deduced from an analytical polarizable-ion model. This comparison shows that there is a strong electron transfer from the alkali atom to the C60 cage, which is almost complete for KC60 and RbC60.
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