Multinuclear MAS NMR studies of sodalitic framework materials
Multinuclear MAS NMR studies of sodalitic framework materials
A wide range of sodalite framework materials, M-8[TT'O-4](6)X-2 where T = Al, Ga, Si, T' = Be, Al, Si, Ge, have been characterized using Al-27, Si-29, and Ga-71 magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy. Structural parameters, such as functions of the framework T-O-T' angle, correlate linearly with the determined chemical shift values and provide relationships, as a function of T', which will facilitate characterization of more complex zeolitic compounds containing such species. The effects of changing a particular neighboring framework cation on the resonance position is controlled by variations in both framework bond angles/distances and electrostatic effects, these contributions are resolved.
nuclear-magnetic-resonance, x-ray-diffraction, si-29 chemical-shifts, solid-state nmr, aluminosilicate-sodalites, structuralcharacterization, crystal-structures, silica polymorphs, al-27, spectra
1454-1463
Johnson, G. M.
f4a4c586-c9a3-4793-a038-cc26039224ae
Mead, P. J.
6accb379-5ab9-4bac-9a71-3b8875039693
Dann, S. E.
6fcec7d2-44b2-42e2-b7a2-b01995b5f866
Weller, M. T.
186aa097-9fd5-4c08-88a1-5359c3318c85
24 February 2000
Johnson, G. M.
f4a4c586-c9a3-4793-a038-cc26039224ae
Mead, P. J.
6accb379-5ab9-4bac-9a71-3b8875039693
Dann, S. E.
6fcec7d2-44b2-42e2-b7a2-b01995b5f866
Weller, M. T.
186aa097-9fd5-4c08-88a1-5359c3318c85
Johnson, G. M., Mead, P. J., Dann, S. E. and Weller, M. T.
(2000)
Multinuclear MAS NMR studies of sodalitic framework materials.
The Journal of Physical Chemistry B, 104 (7), .
(doi:10.1021/jp9929521).
Abstract
A wide range of sodalite framework materials, M-8[TT'O-4](6)X-2 where T = Al, Ga, Si, T' = Be, Al, Si, Ge, have been characterized using Al-27, Si-29, and Ga-71 magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy. Structural parameters, such as functions of the framework T-O-T' angle, correlate linearly with the determined chemical shift values and provide relationships, as a function of T', which will facilitate characterization of more complex zeolitic compounds containing such species. The effects of changing a particular neighboring framework cation on the resonance position is controlled by variations in both framework bond angles/distances and electrostatic effects, these contributions are resolved.
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Published date: 24 February 2000
Keywords:
nuclear-magnetic-resonance, x-ray-diffraction, si-29 chemical-shifts, solid-state nmr, aluminosilicate-sodalites, structuralcharacterization, crystal-structures, silica polymorphs, al-27, spectra
Identifiers
Local EPrints ID: 18959
URI: http://eprints.soton.ac.uk/id/eprint/18959
ISSN: 1520-5207
PURE UUID: 7dea96a2-9eb7-4538-b734-0c53567fc0f8
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Date deposited: 05 Jan 2006
Last modified: 15 Mar 2024 06:09
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Contributors
Author:
G. M. Johnson
Author:
P. J. Mead
Author:
S. E. Dann
Author:
M. T. Weller
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