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Fluorite-related phases in the Bi-rich part of the Bi,Mo/O system

Published online by Cambridge University Press:  10 January 2013

G. Spinolo  and
C. Tomasi
G. Spinolo
Affiliation:
C.S.T.E./CNR, INCM, and Department of Physical Chemistry, University of Pavia, viale Taramelli 16, I27100 Pavia, Italy
C. Tomasi
Affiliation:
C.S.T.E./CNR, INCM, and Department of Physical Chemistry, University of Pavia, viale Taramelli 16, I27100 Pavia, Italy
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Abstract

Two compounds with compositions around n=14 and n∼5.4 (n=Bi/Mo molar ratio) have been prepared by solid-state reaction with five heating/grinding cycles at 800 °C. The lattice constants of both compounds can be related to the fluorite-type structure of δ-Bi2O3. Bi14MoO24 has been indexed as an orthorhombic pseudotetragonal (√2×√2×1) superstructure: a=7.812 (±0.005) Å, b=7.762 (±0.005) Å, c=5.7716 (±0.0007) Å (but a+b=15.5750±0.0020). For orthorhombic (3×5×3) Bi38Mo7O78: a=16.8236 (±0.0027) Å, b=28.6182 (±0.0045) Å, c=16.9082 (±0.0027) Å.

Type
Research Article
Information
Powder Diffraction , Volume 12 , Issue 1 , March 1997 , pp. 16 - 19
Copyright
Copyright © Cambridge University Press 1997

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