And NMR studies of and fullerides
Physical Review B - Condensed Matter and Materials Physics, ISSN: 1550-235X, Vol: 56, Issue: 13, Page: 7831-7834
1997
- 23Citations
- 5Captures
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Article Description
We report on (Formula presented) and (Formula presented) NMR measurements on (Formula presented) and (Formula presented) compounds. The room-temperature (Formula presented) NMR spectra of (Formula presented) and (Formula presented) samples present a narrow isotropic line at 172 and 176 ppm, respectively. The (Formula presented) resonance is shifted 20 ppm more down field than the resonances of (Formula presented) compounds with heavier alkalis, indicating a partial charge transfer to the threefold degenerate (Formula presented) level which is totally filled in the latter compounds. The (Formula presented) NMR spectrum of (Formula presented) shows one line at 73 ppm and the one of (Formula presented) presents two lines at 73 and 147 ppm. The intensity ratio of the latter lines is about 2:1. According to previously reported x-ray data we attribute the line at 147 ppm to the Na tetramers in the octahedral sites and the line at 73 ppm to the Na cations in the tetrahedral ones which are singly occupied. © 1997 The American Physical Society.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0005256578&origin=inward; http://dx.doi.org/10.1103/physrevb.56.7831; https://link.aps.org/doi/10.1103/PhysRevB.56.7831; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.56.7831/fulltext; http://link.aps.org/article/10.1103/PhysRevB.56.7831
American Physical Society (APS)
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