Perles Hernáez, JosefinaRuiz Valero, CaridadSáez Puche, ReginoParada Cortina, C.Snejko, Natalia2026-01-232026-01-232003Parada, Carmen, et al. «Crystal Growth, Structure, and Magnetic Properties of a New Polymorph of Fe2 P2 O7». Chemistry of Materials, vol. 15, n.º 17, agosto de 2003, pp. 3347-51. DOI.org (Crossref), https://doi.org/10.1021/cm034137a.0897-475610.1021/CM034137Ahttps://hdl.handle.net/20.500.14352/130869The title compound, a new polymorphic phase of iron diphosphate, was prepared by solid-state reaction. This compound crystallizes in the monoclinic space group P21/c with a = 4.4668(6) Å, b = 9.896(1) Å, c = 5.2077(7) Å, β = 97.516(2)°, V = 228.22(5) Å3, and Z = 2. The structure is characterized by the arrangement of FeO6 octahedra and P2O7 groups. The FeO6 octahedra are connected by edge sharing to form six-membered rings, which are further interconnected to form two-dimensional zigzag sheets perpendicular to the [100] direction. The P2O7 groups link these sheets to build three-dimensional networks. The relation between Fe2P2O7 polymorphs is discussed. Magnetic measurements reveal the presence of antiferromagnetic interactions in the Fe2+ sublattice at about 12.5 K. Magnetization isotherms obtained below the Neel temperature follow a linear variation in the whole range of the magnetic field strength characteristic of the mentioned antiferromagnetic order and metamagnetic (field induced) transitions have not been observed up to 5 T.engjournal article1520-5002https://dx.doi.org/ 10.1021/CM034137Arestricted access549:546Química inorgánica (Química)Cristalografía (Geología)Mineralogía (Geología)2211.04 Cristalografía2506.11 Mineralogía2303 Química Inorgánica