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.
|Number of pages||4|
|Journal||Journal of the Chemical Society - Dalton Transactions|
|State||Published - 1995|