Li(2)Ca(1.5)Nb(3)O(10) from X-ray powder data.
Acta Crystallogr Sect E Struct Rep Online
; 67(Pt 4): i25, 2011 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-21753922
ABSTRACT
Lithium calcium niobium oxide (2/1.5/3/10), Li(2)Ca(1.5)Nb(3)O(10), has been synthesized by conventional solid-state reaction. Its structure consists of triple-layer perovskite slabs of corner-sharing NbO(6) octa-hedra inter-leaved with lithium ions; Ca cations partially occupy the perovskite A sites at 75% occupancy probability. All eight atoms in the asymmetric unit are on special positions one Nb atom has site symmetry 4/mmm; the second Nb, both K, the Sr and two O atoms have site symmetry 4mm; the remaining two O atoms have site symmetries 2mm. and mmm., respectively.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Acta Crystallogr Sect E Struct Rep Online
Ano de publicação:
2011
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Article