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Article Dans Une Revue European Journal of Inorganic Chemistry Année : 2011

BaAn(IV)(PO4)(2) (An(IV) = Th, Np) - A New Family of Layered Double Phosphates

G. Wallez
  • Fonction : Auteur
D. Bregiroux
K. Popa
  • Fonction : Auteur
Pe Raison
  • Fonction : Auteur
C. Apostolidis
  • Fonction : Auteur
P. Lindqvist-Reis
  • Fonction : Auteur
Rjm Konings
  • Fonction : Auteur

Résumé

BaTh(PO4)2 has been synthesized by a wet chemistry route and the new isotype BaNp(PO4)2 by solid-state reaction. Although the former has been the subject of several studies since the early 1980s, the crystal structures of both compounds are reported here for the first time. Rietveld analysis shows Ba layers alternating with An(PO4)2 slabs along the a axis. Although those compounds are isostructural to RbEu(SO4)2, these phosphates can be seen as modified yavapaiite derivatives with increased coordination numbers for Ba (XIV) and Th/Np (VIII). Raman and electron absorption spectra highlight the similarities and differences with chemically related compounds.

Dates et versions

hal-00849381 , version 1 (30-07-2013)

Identifiants

Citer

G. Wallez, D. Bregiroux, K. Popa, Pe Raison, C. Apostolidis, et al.. BaAn(IV)(PO4)(2) (An(IV) = Th, Np) - A New Family of Layered Double Phosphates. European Journal of Inorganic Chemistry, 2011, 1, pp.110. ⟨10.1002/ejic.201000777⟩. ⟨hal-00849381⟩
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