Fe2(AsO4)F: A new three-dimensional condensed fluoro-arsenate iron(II) compound with antiferromagnetic interactions

Berrocal, Teresa; Mesa, José L.; Pizarro, José L.; Urtiaga, M. Karmele; Arriortua, Marı́a I.; Rojo, Teófilo

doi:10.1016/j.jssc.2006.02.029

Cited by 14 publications

(6 citation statements)

References 23 publications

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“…The Mössbauer spectrum recorded in the paramagnetic state at 300 K is typical of high-spin Fe III ions (Figure ), indicating nonreduction of this cation during the solvothermal synthesis . The high symmetry exhibited by the FeO 6 octahedron in the crystal structure of this compound determines the existence of a very small splitted doublet, as observed in the Mössbauer spectrum.…”

Section: Resultsmentioning

confidence: 76%

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C₂N₂H₁₀)[M(HPO₃)F₃] (M^III = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

et al. 2006

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A new iron(III) phosphite templated by ethylenediamine has been synthesized using solvothermal conditions under autogenous pressure. The (C2N2H10)[Fe(HPO3)F3] compound has been characterized by single-crystal X-ray diffraction data and spectroscopic and magnetic techniques. The crystal structure is formed by chains extended along the c axis and surrounded by ethylenediammonium cations. A study by diffuse-reflectance spectroscopy has been performed, and the calculated Dq, B, and C parameters for the Fe(III) cations are 1030, 720, and 3080 cm(-1), respectively. The Mössbauer spectrum at room temperature is characteristic of Fe(III) ions. The electron spin resonance (ESR) spectra carried out at different temperatures show isotropic signals with a g value of 2.00(1). The thermal evolution of the intensity of the ESR signals indicates the existence of antiferromagnetic interactions for the Fe(III) phase. The magnetic susceptibility data of the Cr(III) and V(III) compounds show antiferromagnetic couplings. The J-exchange parameters of the Fe(III) and Cr(III) compounds have been calculated by using a model for a triangular spin ladder chain. The values are J1 = -1.63(1) K and J2 = -0.87(2) K with g = 2.02 for the Fe(III) phase and J(1) = -0.56(2) K and J2 = -0.40(2) K with g = 1.99 for the Cr(III) compound. In the case of the V(III) phase, the fit has been performed considering a linear chain with the magnetic parameters D = 2.5 cm(-1) and J = -1.15(1) K.

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Section: Resultsmentioning

confidence: 76%

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C₂N₂H₁₀)[M(HPO₃)F₃] (M^III = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

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“…Similar behavior has been observed before. [14,15] The unpredictable nature of the kinetically controlled solvent-mediated hydrothermal reactions is well illustrated by the formation of different phases of varying dimensionality along with the changes in the oxidation state of the iron. It is pertinent to note that low-dimensional hybrid structures are rare in the literature.…”

Section: Resultsmentioning

confidence: 99%

Inorganic–Organic Hybrid Structures: Open‐Framework Iron Phosphite–Oxalates of Varying Dimensionality

Mandal

Natarajan

2007

Chemistry A European J

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Inorganic-organic hybrid structures belonging to the family of iron phosphite-oxalates have been prepared by employing hydrothermal methods. Their structures, determined by single-crystal X-ray diffraction, show a hierarchy within the family. While compounds I and II are low dimensional, III-VI have three-dimensional structures. Compound I has edge-shared ladders of iron phosphite with oxalate units hanging from the iron centers. Compound II has a layer structure with a honeycomb-like arrangement. The three-dimensional hybrid structures have the oxalate units connected in both in-plane and out-of-plane modes. A newly identified secondary building unit (SBU-7) and the oxalate units satisfying the valence and coordination requirements in the structure of V are novel and noteworthy structural features. Magnetic studies show that the dominant interactions between the iron centers are antiferromagnetic. Similar to other known hybrid structures, the phosphite-oxalate structures appear to show wide compositional and structural diversity.

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“…The condensation of MX n m – (X = F, O) entities to give thermodynamically stable phases and a 3D connectivity favors the formation of dense frameworks. It is the case of the triplite or wagnerite-type M 2 II (TO 4 )F (TO 4 = PO 4 , AsO 4 ) and LiFe 1−δ II Mn δ II (SO 4 )F phases. These compounds crystallize in hydrothermal conditions from MF 2 fluorides and phosphoric or arsenic acids at high or low temperature, and from LiF and monohydrated M II sulfates.…”

Section: Crystal Structures and Propertiesmentioning

confidence: 99%

Crystal Chemistry and Selected Physical Properties of Inorganic Fluorides and Oxide-Fluorides

2014

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The stereochemistry of fluorides will be discussed in terms of dimensionality. This dimensionality, from 0D to 3D, is related to the connectivity of the building MX n m− units containing the metal M (M = aluminum, transition metal, or rare earth elements, X = F, O, N, S). These building units share eventually one, two, or three fluorine or oxygen atoms (corner, edge, or face of the MX n m− polyhedra) to form limited polyanions, infinite chains or layers, or a 3D network. Consequently, the structures will be presented according to their dimensionality, to their structural family, and to the nature of the building units. Imaginative associations of the building units will be eventually used to homogenize the structural descriptions. At the end of each section, some outstanding physical properties will be briefly presented and related to the structural data: ionic conductivity, superconductivity, ferroelasticity, and magnetism.The reader should be aware that the IUPAC nomenclature suggests "fluorido" instead of "fluoro" that is used all along this Review. All crystal structure projections were realized with Diamond software (Diamond -Crystal and Molecular Structure

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Fe2(AsO4)F: A new three-dimensional condensed fluoro-arsenate iron(II) compound with antiferromagnetic interactions

Cited by 14 publications

References 23 publications

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C₂N₂H₁₀)[M(HPO₃)F₃] (M^III = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C₂N₂H₁₀)[M(HPO₃)F₃] (M^III = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

Inorganic–Organic Hybrid Structures: Open‐Framework Iron Phosphite–Oxalates of Varying Dimensionality

Crystal Chemistry and Selected Physical Properties of Inorganic Fluorides and Oxide-Fluorides

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Fe2(AsO4)F: A new three-dimensional condensed fluoro-arsenate iron(II) compound with antiferromagnetic interactions

Cited by 14 publications

References 23 publications

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C2N2H10)[M(HPO3)F3] (MIII = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C2N2H10)[M(HPO3)F3] (MIII = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

Inorganic–Organic Hybrid Structures: Open‐Framework Iron Phosphite–Oxalates of Varying Dimensionality

Crystal Chemistry and Selected Physical Properties of Inorganic Fluorides and Oxide-Fluorides

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Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C₂N₂H₁₀)[M(HPO₃)F₃] (M^III = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase

Parametrization of the Magnetic Behavior of the Triangular Spin Ladder Chains Organically Templated: (C₂N₂H₁₀)[M(HPO₃)F₃] (M^III = Fe, Cr, and V). Crystal Structure and Thermal and Spectroscopic Properties of the Iron(III) Phase