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Phosphorus: New in situ powder data from large-volume apparatus

Published online by Cambridge University Press:  06 March 2012

Wilson A. Crichton ,
Mohamed Mezouar ,
Giulio Monaco  and
Sara Falconi
Wilson A. Crichton*
Affiliation:
European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex, France
Mohamed Mezouar
Affiliation:
European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex, France
Giulio Monaco
Affiliation:
European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex, France
Sara Falconi
Affiliation:
Università degli Studi di Roma Tre and INFM, Dipartimento di Fisica, I-00146 Roma, Italy
*
a)Electronic mail: crichton@esrf.fr
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Abstract

Improved X-ray powder diffraction data for orthorhombic phosphorus, S.G. C mca (64) obtained in situ at synthesis conditions of 1.2 GPa and 1100 K, are described. Representative, as synthesized, data include 2.552X, 3.3204, 2.5953, 5.1912, 1.6302, for least-squares unit-cell a=3.3182(6) Å, b=10.3744(18) Å and c=4.3227(9) Å. As an illustration of the quality of the data, the structure was solved from powder XRD and Rietveld refined to give a=3.3199(2) Å, b= 10.3678(4) Å, c=4.3154(2)Å, and V=148.535(12) Å3 with the P atom on 8f (1/2, y,z) with y=0.1044(22) and z=0.9179(7).

Keywords

phosphorusnonambient conditionssynchrotronpowder diffraction, high pressureSDPDsynthesis
Type
New Diffraction Data
Information
Powder Diffraction , Volume 18 , Issue 2 , June 2003 , pp. 155 - 158
Copyright
Copyright © Cambridge University Press 2005

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