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Crystal structure and powder data of davidite-type La2Ti10.27Ga9.63O38

Published online by Cambridge University Press:  10 January 2013

A. Meden
Affiliation:
University of Ljubljana, Faculty of Chemistry and Chemical Technology, Aškerčeva 5, 1000 Ljubljana, Slovenia
D. Kolar
Affiliation:
University of Ljubljana, Faculty of Chemistry and Chemical Technology, Aškerčeva 5, 1000 Ljubljana, Slovenia
S. Škapin
Affiliation:
Jožef Stefan” Institute, Jamova 39, 1000 Ljubljana, Slovenia

Abstract

The structure type of La2Ti10.27Ga9.63O38 was revealed by a search-match using the PDF. A successful Rietveld refinement (Rp=8.9, Rwp=13.3, RB=4.20) confirmed the structure to be rhombohedral (space group R3¯, No. 148) with the refined unit cell parameters a=9.1878(1) Å, α=68.458(1)°, and V=646.374(1) Å3. The structure is compared to other compounds of the davidite type, and the observed and calculated powder data are given.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1999

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