The solid solution Lu2-xScxSiO5

Hamdi Ben Yahia, Ute Ch Rodewald, Birgit Heying, Sarkarainadar Balamurugan, Rainer Pöttgen

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Abstract

The monoclinic silicates Lu2SiO5 and Sc 2SiO5 (Y2SiO5 type, space groupC2/c) forma solid solution Lu2-xScxSiO5. Samples with x = 0.5, 0.8, 1.0 were synthesized ceramically from Lu2O 3, Sc2O3, and SiO2. The structures of three crystals with x = 0.88, 0.77, and 0.50 were refined on the basis of single-crystal X-ray diffraction data. The rare earth (RE) atoms occupy two crystallographically different 8 f sites with oxygen coordination numbers (CN) of 6 (RE2) and 7 (RE1). Refinements of the occupancy parameters showed Lu/Sc mixing for both sites with a strong preference of the smaller scandium atoms for CN6.

Original languageEnglish
Pages (from-to)1183-1187
Number of pages5
JournalZeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
Volume66
Issue number11
Publication statusPublished - 1 Nov 2011

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Keywords

  • Crystal Structure
  • Silicate
  • Solid Solution

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Yahia, H. B., Rodewald, U. C., Heying, B., Balamurugan, S., & Pöttgen, R. (2011). The solid solution Lu2-xScxSiO5. Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, 66(11), 1183-1187.