Raman scattering features of lead pyroantimonate compounds. Part I: XRD and Raman characterization of Pb 2 Sb 2 O 7 doped with tin and zinc

Yellow pyroantimonates PbSb, PbSbSn and PbSbZn were synthesized by solid‐state reactions at high temperature and characterized by X‐ray diffraction and Raman spectroscopy. The lattice size of cubic pyrochlores increases with Sn and Zn doping and with Pb overstoichiometry, indicating the replace...

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Bibliographic Details
Published in:Journal of Raman spectroscopy 2009-01, Vol.40 (1), p.107-111
Main Authors: Rosi, F., Manuali, V., Miliani, C., Brunetti, B. G., Sgamellotti, A., Grygar, T., Hradil, D.
Format: Article
Language:English
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Summary:Yellow pyroantimonates PbSb, PbSbSn and PbSbZn were synthesized by solid‐state reactions at high temperature and characterized by X‐ray diffraction and Raman spectroscopy. The lattice size of cubic pyrochlores increases with Sn and Zn doping and with Pb overstoichiometry, indicating the replacement of Sb 5+ by the larger cations. This fact permits the understanding of the corresponding Raman spectral modifications as a consequence of the changes in the local symmetry of the SbO polyhedra, justifying the exploitation of Raman spectroscopy to noninvasively identify structural modifications of pyroantimonate pigments in artworks. Copyright © 2008 John Wiley & Sons, Ltd.
ISSN:0377-0486
1097-4555
DOI:10.1002/jrs.2092