Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/2412
Title: Synthesis and Magnetic Properties of beta-KVOF3
Authors: Donakowski, Martin D.
Lu, Hongcheng
Gautier, Romain
Saha, Rana
Sundaresan, A.
Poeppelmeier, Kenneth R.
Keywords: Inorganic & Nuclear Chemistry
Heisenberg Chain
Vanadium
Oxide-Fluoride
Hydrothermal Synthesis
Crystal-Structure
Oxide-Fluoride
Vanadium(Iv) Oxyfluorides
Transition-Metals
Composition Space
Anion
Temperature
System
Spin
Issue Date: 2014
Publisher: Wiley-V C H Verlag Gmbh
Citation: Donakowski, MD; Lu, HC; Gautier, R; Saha, R; Sundaresan, A; Poeppelmeier, KR, Synthesis and Magnetic Properties of beta-KVOF3. Zeitschrift Fur Anorganische Und Allgemeine Chemie 2014, 640 (6) 1109-1114, http://dx.doi.org/10.1002/zaac.201300576
Zeitschrift Fur Anorganische Und Allgemeine Chemie
640
6
Abstract: The potassium vanadium oxide-fluoride phase -KVOF3 was prepared by in-situ reduction with hydrothermal methods and characterized by single-crystal X-ray diffraction and magnetic susceptibility measurements. The compound is orthorhombic [space group Pnma, a = 7.1596(2) angstrom, b = 7.5392(2) angstrom, c = 13.0506(4) angstrom, Z = 8]. The material is structurally similar and isoformulaic to d(1) materials of formulae AVOF(3) (A(+) = alkali metal, ammonium, or organic cation). Magnetic susceptibility data were successfully fit with a Heisenberg chain model. In-situ reduction of V5+ to V4+ during the hydrothermal reaction conditions was observed in the presence of Br- anions. The role of bromide ions in this reduction is explained and employed to reduce a d(0) vanadium species to obtain a material with magnetic behavior.
Description: Restricted Access
URI: http://hdl.handle.net/10572/2412
ISSN: 0044-2313
Appears in Collections:Research Articles (Sundaresan A.)

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