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Author |
Bekaert, E.; Robert, F.; Lippens, P.E.; Menetrier, M. |
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Title |
Li-7 NMR Knight Shifts in Li-Sn Compounds: MAS NMR Measurements and Correlation with DFT Calculations |
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Journal Article |
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Year  |
2010 |
Publication |
Journal of Physical Chemistry C |
Abbreviated Journal |
J. Phys. Chem. C |
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Volume |
114 |
Issue |
14 |
Pages |
6749-6754 |
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Abstract |
Several Li-Sn crystalline phases, LiSn. Li7Sn3, Li5Sn7, Li13Sn5, Li7Sn2, and Li22Sn5. were prepared by ball-milling and studied by Li-7 MAS NMR spectroscopy with silica as a chiming agent to avoid field penetration limitations All phases except for LiSn exhibit exchanged NMR signals at room temperature for the various types of Li present in the unit cells. in the 10 to 100 ppm range. Electronic structure calculations based on first-principles method led to a lather good correlation between the participation of the Li 2s orbital to the density of states (DOS) at the Fermi level and the corresponding NMR Knight shift for the two Li crystallographic types in the case of LiSn, and for the weighted average of the different crystallographic types in the case of the NMR-exchanged signals for the other compounds |
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Address |
[Bekaert, Emilie; Menetrier, Michel] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France |
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Publisher |
AMER CHEMICAL SOC |
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ISSN |
1932-7447 |
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Notes |
ISI:000276341700075 |
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Call Number |
EcoFoG @ eric.marcon @ |
Serial |
80 |
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