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An electron diffraction and bond valence sum investigation of oxygen/fluorine ordering in Nb n O 2 n -1 F n +2 , n =3

Brink, Frank; Withers, Raymond; Cordier, Stephane; Poulain, Marcel


The n=3 member of the NbnO2n-1Fn+2 family of oxyfluoride compounds has been carefully investigated by electron diffraction. This compound was previously believed to have a random distribution of oxygen and fluorine ions at each of the anion sites. Electron diffraction experiments have revealed the presence of strong planar diffuse scattering perpendicular to the a and b directions at the G±[qkl]* and G±[hql]* regions of reciprocal space, where G represents a Bragg reflection of the I4/mmm...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Journal of Solid State Chemistry
DOI: 10.1016/j.jssc.2005.10.014


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