High-resolution 29Si NMR spectroscopy of 2:1 layer silicates: correlations among chemical shift, structural distortions, and chemical variations.

C. A. Weiss; S. P. Altaner; R. J. Kirkpatrick

High-resolution ²⁹Si NMR spectroscopy of 2:1 layer silicates: correlations among chemical shift, structural distortions, and chemical variations.

C. A. Weiss, S. P. Altaner, R. J. Kirkpatrick

Earth Science and Environmental Change

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

Abstract

With increasing ^ivAl substitution and increasing total layer charge, the ²⁹Si NMR chemical shifts for specific types of Q³(nAl) sites in 2:1 layer silicates become progressively deshielded (less negative). This deshielding is related to both structural distortions caused by mismatch of the tetrahedral and octahedral sheets and compositional variations in the octahedral sheet.-J.A.Z.

Original language	English (US)
Pages (from-to)	935-942
Number of pages	8
Journal	American Mineralogist
Volume	72
Issue number	9-10
State	Published - 1987

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

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abstract = "With increasing ivAl substitution and increasing total layer charge, the 29Si NMR chemical shifts for specific types of Q3(nAl) sites in 2:1 layer silicates become progressively deshielded (less negative). This deshielding is related to both structural distortions caused by mismatch of the tetrahedral and octahedral sheets and compositional variations in the octahedral sheet.-J.A.Z.",

author = "Weiss, {C. A.} and Altaner, {S. P.} and Kirkpatrick, {R. J.}",

year = "1987",

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AU - Kirkpatrick, R. J.

PY - 1987

Y1 - 1987

N2 - With increasing ivAl substitution and increasing total layer charge, the 29Si NMR chemical shifts for specific types of Q3(nAl) sites in 2:1 layer silicates become progressively deshielded (less negative). This deshielding is related to both structural distortions caused by mismatch of the tetrahedral and octahedral sheets and compositional variations in the octahedral sheet.-J.A.Z.

AB - With increasing ivAl substitution and increasing total layer charge, the 29Si NMR chemical shifts for specific types of Q3(nAl) sites in 2:1 layer silicates become progressively deshielded (less negative). This deshielding is related to both structural distortions caused by mismatch of the tetrahedral and octahedral sheets and compositional variations in the octahedral sheet.-J.A.Z.

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High-resolution ²⁹Si NMR spectroscopy of 2:1 layer silicates: correlations among chemical shift, structural distortions, and chemical variations.

Abstract

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