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Powder X-ray diffraction study of a new polymorph of Al2(WO4)3

Published online by Cambridge University Press:  01 March 2012

G. D. Mukherjee,
V. Vijayakumar,
B. K. Godwal,
S. N. Achary and
A. K. Tyagi
G. D. Mukherjee
Affiliation:
High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
V. Vijayakumar
Affiliation:
High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
B. K. Godwal
Affiliation:
High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
S. N. Achary
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
A. K. Tyagi*
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
*
a)Author to whom correspondence should be addressed. Electronic mail: aktyagi@magnum.barc.ernet.in
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Abstract

A new polymorph of Al2(WO4)3 is observed from in situ high pressure powder X-ray diffraction (ADXRD) measurements at 3.4 GPa. The ADXRD pattern at 3.4 GPa could be explained based on a monoclinic lattice (space group P21) with unit cell parameters: a=9.5884(24), b=12.5204(38), c=7.8463(33) Å, and β=91.98(2)°.

Keywords

tungstatepolymorphismhigh pressureX-ray diffraction

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Type
New Diffraction Data
Information
Powder Diffraction , Volume 21 , Issue 1 , March 2006, pp. 63 - 66
Copyright
Copyright © Cambridge University Press 2006

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