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The First Structure of a Cerium(IV) Phosphate: Ab Initio Rietveld Analysis of CeIV(PO4)(HPO4)0.5(H2O)0.5

Authors

  • Micaela Nazaraly,

    1. Chimie de la Matière Condensée–UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 174, F-75252 Paris Cedex 05, France, Fax: (+33) 1-44-27-47-69
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  • Gilles Wallez Dr.,

    1. Laboratoire de Cristallochimie du Solide - UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 176, F-75252 Paris Cedex 05, France
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  • Corinne Chanéac Dr.,

    1. Chimie de la Matière Condensée–UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 174, F-75252 Paris Cedex 05, France, Fax: (+33) 1-44-27-47-69
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  • Elisabeth Tronc Dr.,

    1. Chimie de la Matière Condensée–UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 174, F-75252 Paris Cedex 05, France, Fax: (+33) 1-44-27-47-69
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  • François Ribot Dr.,

    1. Chimie de la Matière Condensée–UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 174, F-75252 Paris Cedex 05, France, Fax: (+33) 1-44-27-47-69
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  • Michel Quarton Prof. Dr.,

    1. Laboratoire de Cristallochimie du Solide - UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 176, F-75252 Paris Cedex 05, France
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  • Jean-Pierre Jolivet Prof. Dr.

    1. Chimie de la Matière Condensée–UMR CNRS 7574, Université Pierre et Marie Curie, 4, place Jussieu, cc 174, F-75252 Paris Cedex 05, France, Fax: (+33) 1-44-27-47-69
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  • M.N. is indebted to Rhodia for her PhD fellowship. The authors are grateful to Dr W. van Beck (ESRF) for his help in collecting the diffraction data and to J. Maquet for her assistance with solid-state NMR spectroscopy.

Abstract

original image

Layer apparent: Crystalline cerium(IV) phosphates have been studied for a long time as ion exchangers, but their structures have remained unknown. The structure of a cerium(IV) phosphate has been determined (see picture: tetrahedra PO4, yellow Ce, blue O (water)) and clearly explains a notable feature of this compound, its inability to intercalate amines. The X-ray study is supported by solid-state NMR spectroscopy investigations.

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