CsFe3(PO4)3(OH2)2: A mixed-valence iron phosphate containing trimeric units of iron-oxygen polyhedra

Kwang Hwa Lii, Chih Yuan Huang

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Abstract

A mixed-valence iron phosphate, CsFe3(PO4)3(OH2)2, has been synthesized hydrothermally and characterized by single-crystal X-Ray diffraction and Mössbauer spectroscopy. The compound crystallizes in the monoclinic space group C2/c with a = 13.435(2), b = 10.488(1), c = 9.024(2) Å, β = 108.60(1)°, U = 1205.1(3) Å3 and Z = 4. The structure consists of a three-dimensional framework of vertex-sharing FeIIIO5 trigonal bipyramids, FeIIO4(OH2)2 octahedra and PO4 tetrahedra, enclosing a network of cavities, where the caesium cations reside. Mössbauer spectroscopy confirms the presence of one FeII and two FeIII.

Original languageEnglish
Pages (from-to)571-574
Number of pages4
JournalJournal of the Chemical Society - Dalton Transactions
Issue number4
DOIs
StatePublished - 1995

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