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dc.contributor.authorYahia, HB-
dc.contributor.authorShikano, M-
dc.contributor.authorTabuchi, M-
dc.contributor.authorKobayashi, H-
dc.contributor.authorAvdeev, M-
dc.contributor.authorTan, TT-
dc.contributor.authorLiu, S-
dc.contributor.authorLing, CD-
dc.identifier.citationYahia, H. B., Shikano, M., Tabuchi, M., Kobayashi, H., Avdeev, M., Tan, T. T., Liu, S., & Ling, C. D. (2014). Synthesis and characterization of the crystal and magnetic structures and properties of the hydroxyfluorides Fe(OH)F and Co(OH)F. Inorganic Chemistry, 53(1), 365-374. doi:10.1021/ic402294gen_AU
dc.description.abstractThe title compounds were synthesized by a hydrothermal route from a 1:1 molar ratio of lithium fluoride and transition-metal acetate in an excess of water. The crystal structures were determined using a combination of powder and/or single-crystal X-ray and neutron powder diffraction (NPD) measurements. The magnetic structure and properties of Co(OH)F were characterized by magnetic susceptibility and low-temperature NPD measurements. M(OH)F (M = Fe and Co) crystallizes with structures related to diaspore-type α-AlOOH, with the Pnma space group, Z = 4, a = 10.471(3) Å, b = 3.2059(10) Å, and c = 4.6977(14) Å and a = 10.2753(3) Å, b = 3.11813(7) Å, and c = 4.68437(14) Å for the iron and cobalt phases, respectively. The structures consist of double chains of edge-sharing M(F,O)6 octahedra running along the b axis. These infinite chains share corners and give rise to channels. The protons are located in the channels and form O–H···F bent hydrogen bonds. The magnetic susceptibility indicates an antiferromagnetic ordering at ∼40 K, and the NPD measurements at 3 K show that the ferromagnetic rutile-type chains with spins parallel to the short b axis are antiferromagnetically coupled to each other, similarly to the magnetic structure of goethite α-FeOOH. © 2014, American Chemical Societyen_AU
dc.publisherAmerical Chemical Societyen_AU
dc.subjectLithium fluoridesen_AU
dc.subjectX-ray sourcesen_AU
dc.subjectCrystal structureen_AU
dc.subjectMagnetic surfacesen_AU
dc.titleSynthesis and characterization of the crystal and magnetic structures and properties of the hydroxyfluorides Fe(OH)F and Co(OH)Fen_AU
dc.typeJournal Articleen_AU
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