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Structural influences on high-resolution yttrium-89 NMR spectra of solids

✍ Scribed by R. Dupree; M.E. Smith

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
378 KB
Volume
148
Category
Article
ISSN
0009-2614

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✦ Synopsis

Structural influences on both the isotropic NMR chemical shift and resonance linewidth of "Y are investigated by obtaining magic-angle spinning NMR spectra from a number of solid-state yttrium aluminate and silicate phases. These clearly show that the isotropic chemical shift for 89Y is dependent on the number of nearest neighbours and the nature of the next-nearest neighbours. However, unlike most other nuclei such as *%i and 27A1, the shift ranges of different nearest-neighbour coordinations significantly overlap. In the silicates the ssY spectrum becomes more shielded as the %i resonance becomes less shielded reflecting the reciprocity of the shifts.

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