Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1506912 | Solid State Sciences | 2006 | 6 Pages |
Abstract
The oxyhalides Pb3TeO4X2 (X=ClX=Cl, Br, I) have been prepared from Pb3O2X2 and TeO2. All three compounds are isostructural and adopt the Nd2O2Te (PbBiO2I) structure type (I4/mI4/m, Z=1Z=1) according to single-crystal and powder X-ray and electron diffraction data. Contrary to previous results, the Pb/Te cation ordering was found to be nearly the same as Pb/I in schwartzembergite, Pb5IO4(OH)2Cl3 but not Pb/Sb in nadorite PbSbO2Cl. We discuss the factors affecting Pb/M cation ordering in layered (Sillén-type) multinary oxyhalides of lead.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dmitri O. Charkin, Oleg S. Morozov, Elizaveta A. Ul'yanova, Peter S. Berdonosov, Valeri A. Dolgikh, Calum Dickinson, Wuzong Zhou, Philip Lightfoot,