High-resolution solid-state NMR of quadrupolar nuclei

Eric Oldfield, Hye Kyung C. Timken, Ben Montez, R. Ramachandran

Research output: Contribution to journalArticle

Abstract

Quadrupolar nuclei are the most abundant nuclear magnetic resonance (NMR)-receptive nuclei in the Earth's crust, and in many amorphous materials of technological interest (such as zeolite catalysts, ceramics and alloys), and have thus been intensively studied1-7. Of particular interest is the ability to resolve and quantitate the various types of sites present in a given material. Here we present a very simple, yet we believe powerful, approach towards the resolution of chemically non-equivalent sites in solids, which combines a conventional high-field spin-echo NMR method with the resolution enhancement of the 'quadrupole shift' approach4,7. We demonstrate its application to the complete resol-ution of both the (1/2, 3/2) and (3/2, 5/2) transitions of the 27Al nuclei in a mixture of potassium and ammonium alums (KAl(SO4)2·12H2O and NH 4Al(SO4)2·12H2O).

Original languageEnglish (US)
Pages (from-to)163-165
Number of pages3
JournalNature
Volume318
Issue number6042
DOIs
StatePublished - Dec 1 1985

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solid state
nuclear magnetic resonance
nuclei
high resolution
Earth crust
amorphous materials
potassium
echoes
quadrupoles
ceramics
catalysts
augmentation
shift

ASJC Scopus subject areas

  • General

Cite this

Oldfield, E., Timken, H. K. C., Montez, B., & Ramachandran, R. (1985). High-resolution solid-state NMR of quadrupolar nuclei. Nature, 318(6042), 163-165. https://doi.org/10.1038/318163a0

High-resolution solid-state NMR of quadrupolar nuclei. / Oldfield, Eric; Timken, Hye Kyung C.; Montez, Ben; Ramachandran, R.

In: Nature, Vol. 318, No. 6042, 01.12.1985, p. 163-165.

Research output: Contribution to journalArticle

Oldfield, E, Timken, HKC, Montez, B & Ramachandran, R 1985, 'High-resolution solid-state NMR of quadrupolar nuclei', Nature, vol. 318, no. 6042, pp. 163-165. https://doi.org/10.1038/318163a0
Oldfield E, Timken HKC, Montez B, Ramachandran R. High-resolution solid-state NMR of quadrupolar nuclei. Nature. 1985 Dec 1;318(6042):163-165. https://doi.org/10.1038/318163a0
Oldfield, Eric ; Timken, Hye Kyung C. ; Montez, Ben ; Ramachandran, R. / High-resolution solid-state NMR of quadrupolar nuclei. In: Nature. 1985 ; Vol. 318, No. 6042. pp. 163-165.
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