Abstract
The recent X-ray structural studies of endohedral metallofullerenes by synchrotron radiation (SR) powder diffraction utilizing the maximum entropy method (MEM) are reviewed. Results for endohedral metallofullerenes (Y@C82, La@C82, Sc@C82, Sc2@C84, Sc3@C82, Sc2@C66, La2@C80 and Sc2C2@C84) are given. The precise MEM charge densities of metallofullerenes present direct images of the endohedral nature of metallofullerenes and reveal the features of the charge transfer from metal atoms to a carbon cage, which governs the stability of the unique endohedral structures. The MEM/Rietveld method, which is the crucial method for structural determination of endohedral metallofullerenes based on SR powder data, is also described in some detail.
Original language | English |
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Pages (from-to) | 271-286 |
Number of pages | 16 |
Journal | New Diamond and Frontier Carbon Technology |
Volume | 12 |
Issue number | 5 |
Publication status | Published - 2002 |
Externally published | Yes |
Keywords
- Charge density
- Maximum entropy method
- Metallofullerene
- Powder diffraction
- Synchrotron radiation
ASJC Scopus subject areas
- Materials Science(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films