7783-50-8Relevant articles and documents
Reactions of oxides of some 3d elements with ammonium hydrogen difluoride
Kalinnikov,Nesterov,Makarov,Steshin,Tikhomirova
, p. 347 - 352 (2004)
Reactions of iron, manganese(II), manganese(IV), copper, and zinc oxides with ammonium hydrogen difluoride were studied by thermogravimetry, X-ray phase analysis, IR spectrometry, and chemical analysis.
Grannec, J.,Yacoubi, A.,Tressaud, A.,Fournes, L.,Hagenmuller, P.
, p. 1611 - 1620 (1988)
Leblanc, M.,Ferey, G.,Pape, R. de
, p. 1581 - 1590 (1984)
Gallagher, Kevin J.,Ottaway, Martyn R.
, (1977)
MOSSBAUER SPECTROSCOPY STUDY OF CRYSTALLIZATION OF AMORPHOUS IRON (III) FLUORIDES: INFLUENCE OF EXPERIMENTAL CONDITIONS.
Greneche, J. M.,Varret, F.,Leblanc, M.,Ferey, G.
, p. 813 - 816 (1987)
Isothermal and non-isothermal treatments were performed on amorphous fluorides vapor-deposited FeF//2 and FeF//3, xHF (0. 4 less than x less than 1. 0) obtained by a soft chemistry reaction. They crystallize in rhombohedral and/or hexagonal tungsten bronze type phases, evidenced by Mossbauer spectroscopy and X-ray diffraction. The influence of the experimental parameters is discussed: heating modes and pressure. It is concluded that the 'ideal' amorphous FeF//3 crystallizes in the rhombohedral form.
mer-Triammine trifluorido iron(III), mer-[FeF3(NH 3)3]
Kraus, Florian,Baer, Sebastian A.
, p. 865 - 867 (2011)
Metal fluorides are scarcely soluble in liquid ammonia, and their ammine complexes are rare. The synthesis and crystal structure of the first ammine complex of an iron fluoride, the mer-triammine trifluorido iron(III), mer-[FeF3(NH3)3], is presented. The compound crystallizes in the form of colorless, needle-shaped single crystals in the monoclinic space group P21/n with Z = 4. The molecules are interconnected by strong N-H?F hydrogen bonds.
Characterization of an Amorphous Change of FeF3: Thermal, Magnetic and Mossbauer Study.
Ferey,Leclerc,de Pape,Mariot,Varret
, p. 477 - 480 (1979)
Amorphous FeF//3 has been prepared by fast vaporization of the bulk material and condensation. It has been characterized by X-ray diffraction and differential thermal analysis. Strong antiferromagnetic interactions, but low spin-freezing temperature, are
Magnetic structure and properties of Pb8FeIIFe2IIIF24: A 1-D ferrimagnetic chain compound exhibiting a spin-flop transition
Pierrard,Gredin,Dupont,De Kozak,Bouree-Vigneron,Andre,Rosenman
, p. 44 - 51 (1999)
The magnetic structure of Pb8FeIIFe2IIIF24 was solved starting from its neutron diffraction powder pattern obtained at 1.4 K and its magnetic properties were characterized using the data recorded on a SQUID magnetometer and on a magneto-susceptometer. Pb8FeIIFe2IIIF24 is triclinic, space group P1; its crystal structure was previously solved on a single crystal. The magnetic structure of this fluoride is built up from ferrimagnetic chains antiferromagnetically coupled approximately along the c-axis of the cell, making up layers parallel to the (b,c) plane. Two successive layers exhibit different orientations of the magnetic moments. The net magnetic moment of Pb8FeIIFe2IIIF24 is equal to zero in agreement with an antiferromagnetic structure. This magnetic structure does not evolve in the temperature range: 1.4-20 K. Thus, only one magnetic phase occurs below TN≈21 K. Under a sufficiently strong magnetic field (H>5000 Oe), Pb8FeIIFe2IIIF24 exhibits a spin-flop transition.