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

M. T. Weller, G. Wong

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)430-435
JournalSolid State Ionics
Volume32-33
Issue numberPART 1
DOIs
Publication statusPublished - 1989

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Neutron diffraction
Lithium
neutron diffraction
lithium
Nuclear magnetic resonance
solid state
sodalite
nuclear magnetic resonance
cavities
Neutron powder diffraction
Geometry
geometry
tetrahedrons
contraction
Chlorides
Ion exchange
ions
chlorides
Ions
high resolution

Cite this

Characterisation of novel sodalites by neutron diffraction and solid-state NMR. / Weller, M. T.; Wong, G.

In: Solid State Ionics, Vol. 32-33, No. PART 1, 1989, p. 430-435.

Research output: Contribution to journalArticle

Weller, M. T. ; Wong, G. / Characterisation of novel sodalites by neutron diffraction and solid-state NMR. In: Solid State Ionics. 1989 ; Vol. 32-33, No. PART 1. pp. 430-435.
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