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Resolving the Different Silicon Clusters in Li 12 Si 7 by 29 Si and 6,7 Li Solid‐State NMR Spectroscopy
Author(s) -
Köster Thomas K.J.,
Salager Elodie,
Morris Andrew J.,
Key Baris,
Seznec Vincent,
Morcrette Mathieu,
Pickard Chris J.,
Grey Clare P.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201105998
Subject(s) - silicon , spectroscopy , silicide , nuclear magnetic resonance spectroscopy , lithium (medication) , solid state nuclear magnetic resonance , ion , solid state , materials science , analytical chemistry (journal) , crystallography , chemistry , optoelectronics , nuclear magnetic resonance , physics , stereochemistry , medicine , organic chemistry , quantum mechanics , endocrinology , chromatography
Structural signatures : The analysis of Si–Si and Si–Li connectivities by solid‐state NMR spectroscopy allows the different types of silicon clusters to be discriminated in the model lithium silicide compound Li 12 Si 7 (see picture, Si clusters red and blue, Li ions gray). The results provide new NMR spectroscopic strategies with which to differentiate and study the structures formed in silicon‐based electrode materials.