Nuclear magnetic resonance study of polycrystalline NH4ClO 4

James A. Ibers

doi:10.1063/1.1730938

Nuclear magnetic resonance study of polycrystalline NH₄ClO ₄

James A. Ibers^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The second moments of the proton resonance absorption line in polycrystalline NH₄ClO₄ are found to be 1.27±0.02 gauss² at 70°K and 1.18±0.01 gauss 2 at 298°K; these results are interpreted in terms of reorientation of the ammonium ion about random or nearly random axes. Spin-lattice relaxation times for polycrystalline NH₄ClO₄ have been measured between 77° and 298°K by the progressive saturation method. These relaxation times are consistent with a barrier hindering reorientation of 2.0±0.6 kcal.

Original language	English (US)
Pages (from-to)	1448-1449
Number of pages	2
Journal	The Journal of Chemical Physics
Volume	32
Issue number	5
DOIs	https://doi.org/10.1063/1.1730938
State	Published - 1960

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Nuclear magnetic resonance study of polycrystalline NH4ClO 4",

abstract = "The second moments of the proton resonance absorption line in polycrystalline NH4ClO4 are found to be 1.27±0.02 gauss2 at 70°K and 1.18±0.01 gauss 2 at 298°K; these results are interpreted in terms of reorientation of the ammonium ion about random or nearly random axes. Spin-lattice relaxation times for polycrystalline NH4ClO4 have been measured between 77° and 298°K by the progressive saturation method. These relaxation times are consistent with a barrier hindering reorientation of 2.0±0.6 kcal.",

author = "Ibers, {James A.}",

year = "1960",

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AU - Ibers, James A.

PY - 1960

Y1 - 1960

N2 - The second moments of the proton resonance absorption line in polycrystalline NH4ClO4 are found to be 1.27±0.02 gauss2 at 70°K and 1.18±0.01 gauss 2 at 298°K; these results are interpreted in terms of reorientation of the ammonium ion about random or nearly random axes. Spin-lattice relaxation times for polycrystalline NH4ClO4 have been measured between 77° and 298°K by the progressive saturation method. These relaxation times are consistent with a barrier hindering reorientation of 2.0±0.6 kcal.

AB - The second moments of the proton resonance absorption line in polycrystalline NH4ClO4 are found to be 1.27±0.02 gauss2 at 70°K and 1.18±0.01 gauss 2 at 298°K; these results are interpreted in terms of reorientation of the ammonium ion about random or nearly random axes. Spin-lattice relaxation times for polycrystalline NH4ClO4 have been measured between 77° and 298°K by the progressive saturation method. These relaxation times are consistent with a barrier hindering reorientation of 2.0±0.6 kcal.

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Nuclear magnetic resonance study of polycrystalline NH₄ClO ₄

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