High-Resolution Oxygen-17 NMR of Solid Silicates

Karl Todd Mueller, Y. Wu, B. F. Chmelka, J. Stebbins, A. Pines

Research output: Contribution to journalArticle

99 Citations (Scopus)

Abstract

Several 17O-enriched silicates were studied by use of dynamic angle spinning (DAS) and double rotation (DOR) nuclear magnetic resonance spectroscopy. These methods average away second-order quadrupolar interactions by reorienting a sample about a time-dependent axis, thereby yielding high-resolution spectra of oxygen-17 nuclei. A narrow spectral line is observed for each distinct oxygen site at the sum of the isotropic chemical shift and the field-dependent isotropic second-order quadrupolar shift. Resolution is increased by up to 2 orders of magnitude compared to conventional magic angle spinning (MAS) spectra. Crystallographically inequivalent oxygens are now observable as distinct resonances in spectra of polycrystalline silicates such as diopside (CaMgSi2 17O6), wollastonite (CaSi17O3), clinoenstatite (MgSi17O3), larnite (Ca2Si17O4), and forsterite (Mg2Si17O4).

Original languageEnglish (US)
Pages (from-to)32-38
Number of pages7
JournalJournal of the American Chemical Society
Volume113
Issue number1
DOIs
StatePublished - Jan 1 1991

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Silicates
Nuclear magnetic resonance
Oxygen
Magic angle spinning
Chemical shift
Nuclear magnetic resonance spectroscopy
Magnetic Resonance Spectroscopy

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Mueller, K. T., Wu, Y., Chmelka, B. F., Stebbins, J., & Pines, A. (1991). High-Resolution Oxygen-17 NMR of Solid Silicates. Journal of the American Chemical Society, 113(1), 32-38. https://doi.org/10.1021/ja00001a006
Mueller, Karl Todd ; Wu, Y. ; Chmelka, B. F. ; Stebbins, J. ; Pines, A. / High-Resolution Oxygen-17 NMR of Solid Silicates. In: Journal of the American Chemical Society. 1991 ; Vol. 113, No. 1. pp. 32-38.
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Mueller, KT, Wu, Y, Chmelka, BF, Stebbins, J & Pines, A 1991, 'High-Resolution Oxygen-17 NMR of Solid Silicates', Journal of the American Chemical Society, vol. 113, no. 1, pp. 32-38. https://doi.org/10.1021/ja00001a006

High-Resolution Oxygen-17 NMR of Solid Silicates. / Mueller, Karl Todd; Wu, Y.; Chmelka, B. F.; Stebbins, J.; Pines, A.

In: Journal of the American Chemical Society, Vol. 113, No. 1, 01.01.1991, p. 32-38.

Research output: Contribution to journalArticle

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