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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Powder Neutron Diffraction Study of Pyrolusite, β-MnO2

AA Bolzan, C Fong, BJ Kennedy and CJ Howard

Australian Journal of Chemistry 46(6) 939 - 944
Published: 1993

Abstract

The powder neutron diffraction pattern of pyrolusite, β-MnO2 [P42/mnm, No. 136, a = 4.4041(1), c = 2.8765(1)Ǻ], has been refined by the Rietveld method to give values for both the oxygen position parameter u=0.3046(1) and the anisotropic thermal parameters. The data confirm the MnO6 octahedra to be elongated with two long [1.894(1)Ǻ] and four short [1.882(2)Ǻ] Mn-O bond distances. The effect of the stereochemistry on the thermal vibrations is discussed.

https://doi.org/10.1071/CH9930939

© CSIRO 1993

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