Author/Authors :
Dam Hieu Chi، نويسنده , , Dam and Iwasa، نويسنده , , Y. and Chen، نويسنده , , X.H. and Takenobu، نويسنده , , T. and Ito، نويسنده , , T. and Mitani، نويسنده , , T. and Nishibori، نويسنده , , E. and Takata، نويسنده , , M. and Sakata، نويسنده , , M. and Kubozono، نويسنده , , Y.، نويسنده ,
Abstract :
The bonding nature between rare earth metals and fullerene molecules has been investigated. The electron density distribution for nominal Sm3C70, calculated by a maximum entropy method (MEM) based on the Rietveld analysis of synchrotron X-ray diffraction pattern, unambiguously demonstrated a covalent SmC bond, which is almost as strong as the interatomic bonding of crystal Si. Furthermore, the Sm bridges two C70 molecules, producing a C70SmC70 dimer structure.
