Abstract
The iron-manganese phosphate of composition (Fe0.54Mn0.46)(PO4).2H2O has been obtained as a single-phase product using hydrothermal methods and the structure has been determined by single crystal X-ray diffraction. The title compound is orthorhombic, Pbca, a = 8.720(1), b = 9.884(1), c = 10.114(2) A, isostructural with strengite. The structure consists of a linkage of MO6 octahedra and PO4 3− tetrahedra. The octahedra are insular and are held together to form a three-dimensional structure by the tetrahedra. The crystal structure study revealed that (Fe0.54Mn0.46)(PO4)⋅2H2O exhibits a strong Jahn–Teller effect. The compound has been characterized by Raman and IR Spectroscopy, showing the bonds characteristic of the PO4 3− polyanions. Measurements by the electric permittivity revealed a peak at 350 K. The iron-manganese phosphate of composition (Fe0.54Mn0.46)(PO4)⋅2H2O has been obtained as a single-phase product using hydrothermal methods and the structure has been determined by single crystal X-ray diffraction. The title compound is orthorhombic, Pbca, a = 8.720(1), b = 9.884(1), c = 10.114(2) A, isostructural with strengite. The structure consists of a linkage of MO6 octahedra and PO4 3− tetrahedra. The octahedra are insular and are held together to form a three-dimensional structure by the tetrahedra. The crystal structure study revealed that (Fe0.54Mn0.46)(PO4)⋅2H2O exhibits a strong Jahn–Teller effect. The compound has been characterized by Raman and IR Spectroscopy, showing the bonds characteristic of the PO4 3− polyanions. Measurements by the electric permittivity revealed a peak at 350 K.
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