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An unusual O2-/F- distribution in the new pyrochlore oxyfluorides: Na2B2O5F2 (B = Nb, Ta)

Abstract : Two new oxyfluorides with a pyrochlore-type structure, Na2Nb2O5F2 and Na2Ta2O5F2, have been obtained and for which the XRD crystallographic study coupled with 19F solid state NMR reveals an unusual O/F distribution. Both materials are n-type semiconductors exhibiting photoconductive properties.
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https://hal-univ-artois.archives-ouvertes.fr/hal-03631161
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Submitted on : Tuesday, April 5, 2022 - 2:32:08 PM
Last modification on : Wednesday, April 6, 2022 - 3:33:11 AM

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Edouard Boivin, Frédérique Pourpoint, Sébastien Saitzek, Pardis Simon, Pascal Roussel, et al.. An unusual O2-/F- distribution in the new pyrochlore oxyfluorides: Na2B2O5F2 (B = Nb, Ta). Chemical Communications, Royal Society of Chemistry, 2022, 58 (14), pp.2391-2394. ⟨10.1039/D1CC06760E⟩. ⟨hal-03631161⟩

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