Characterisation of novel sodalites by neutron diffraction and solid-state NMR

M. T. Weller; G. Wong

doi:10.1016/0167-2738(89)90251-8

Characterisation of novel sodalites by neutron diffraction and solid-state NMR

M. T. Weller, G. Wong

Department of Chemistry

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

Abstract

A range of sodalites of general formula LiNa(AlSiO)Cl have been synthesised by structure conversion and ion exchange reactions. High resolution Si NMR spectra of these compounds demonstrate a single resonance, the frequency of which varies smoothly with lithium content and the geometry of the Si-(OAl) tetrahedron determined by powder neutron diffraction. Incorporation of lithium in the sodalite structure results in contraction of the Si-O-Al bond angle to accommodate the preferred coordination geometry of the smaller cavity species. In partially exchanged materials the chloride ion is displaced away from the cavity centre.

Original language	English
Pages (from-to)	430-435
Journal	Solid State Ionics
Volume	32-33
Issue number	PART 1
DOIs	https://doi.org/10.1016/0167-2738(89)90251-8
Publication status	Published - 1989

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abstract = "A range of sodalites of general formula LiNa(AlSiO)Cl have been synthesised by structure conversion and ion exchange reactions. High resolution Si NMR spectra of these compounds demonstrate a single resonance, the frequency of which varies smoothly with lithium content and the geometry of the Si-(OAl) tetrahedron determined by powder neutron diffraction. Incorporation of lithium in the sodalite structure results in contraction of the Si-O-Al bond angle to accommodate the preferred coordination geometry of the smaller cavity species. In partially exchanged materials the chloride ion is displaced away from the cavity centre.",

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year = "1989",

doi = "10.1016/0167-2738(89)90251-8",

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T1 - Characterisation of novel sodalites by neutron diffraction and solid-state NMR

AU - Weller, M. T.

AU - Wong, G.

PY - 1989

Y1 - 1989

N2 - A range of sodalites of general formula LiNa(AlSiO)Cl have been synthesised by structure conversion and ion exchange reactions. High resolution Si NMR spectra of these compounds demonstrate a single resonance, the frequency of which varies smoothly with lithium content and the geometry of the Si-(OAl) tetrahedron determined by powder neutron diffraction. Incorporation of lithium in the sodalite structure results in contraction of the Si-O-Al bond angle to accommodate the preferred coordination geometry of the smaller cavity species. In partially exchanged materials the chloride ion is displaced away from the cavity centre.

AB - A range of sodalites of general formula LiNa(AlSiO)Cl have been synthesised by structure conversion and ion exchange reactions. High resolution Si NMR spectra of these compounds demonstrate a single resonance, the frequency of which varies smoothly with lithium content and the geometry of the Si-(OAl) tetrahedron determined by powder neutron diffraction. Incorporation of lithium in the sodalite structure results in contraction of the Si-O-Al bond angle to accommodate the preferred coordination geometry of the smaller cavity species. In partially exchanged materials the chloride ion is displaced away from the cavity centre.

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UR - http://dx.doi.org/10.1016/0167-2738(89)90251-8

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DO - 10.1016/0167-2738(89)90251-8

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SP - 430

EP - 435

JO - Solid State Ionics

JF - Solid State Ionics

IS - PART 1

ER -

Characterisation of novel sodalites by neutron diffraction and solid-state NMR

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