STRUCTURES OF STRONTIUM SELENITE AND STRONTIUM SELENIDE ALUMINATE SODALITES AND THE RELATIONSHIP OF FRAMEWORK STRUCTURE TO VIBRATIONAL-SPECTRA IN ALUMINATE SODALITES

Authors
BRENCHLEY ME WELLER MT
Citation
Me. Brenchley et Mt. Weller, STRUCTURES OF STRONTIUM SELENITE AND STRONTIUM SELENIDE ALUMINATE SODALITES AND THE RELATIONSHIP OF FRAMEWORK STRUCTURE TO VIBRATIONAL-SPECTRA IN ALUMINATE SODALITES, Chemistry of materials, 5(7), 1993, pp. 970-973
Citations number
19
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
5
Issue
7
Year of publication
1993
Pages
970 - 973
Database
ISI
SICI code
0897-4756(1993)5:7<970:SOSSAS>2.0.ZU;2-V
Abstract
The structures of both Sr8[AlO2]12.(SeO3)2 and its reduced product Sr8 [AlO2]12.(Se)2 have been determined using profile refinements of powde r neutron diffraction data. Both crystallize with the simple body cent ered cubic sodalite structure with strontium showing a tetrahedral coo rdination around SeO32-/Se2-, and selenite showing 24-fold disordering giving rise to a partially occupied distorted cuboctahedron comprisin g 24 identical deformed SeO3 trigonal pyramids. The infrared spectra o f aluminate sodalites as a function of cage dimensions are discussed.