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XANES Pb LIII spectra of mixed-valence compound: Minium, Pb3O4

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arxiv cond-mat/0312663 v1 pith:F6JGWA4D submitted 2003-12-28 cond-mat.mtrl-sci

XANES Pb LIII spectra of mixed-valence compound: Minium, Pb3O4

S.P. Gabuda , S.G. Kozlova , S. B. Erenburg , N.V. Bausk This is my paper
classification cond-mat.mtrl-sci
keywords xanespb3o4compoundcorrespondingdifferentminiummixed-valencespectra
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Mixed-valence compound Pb3O4 (minium) has been studied using X-ray absorption near-edge structure (XANES) spectroscopy and DFT calculations. In spite of presence of two valence states of lead [Pb(II) and Pb(IV)], the XANES spectrum of studied system is corresponding to apparently unified, an intermediate valence state of Pb. On the other hand, the 207Pb NMR spectra definitely show two different spectral bands corresponding to different Pb2+ and Pb4+ ions in Pb3O4 crystal structure. The explanation of this contradiction is related to the basics of XANES and NMR spectroscopy.

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