Synthesis and magnetic properties of β-KVOF3

Martin D. Donakowski, Hongcheng Lu, Romain Gautier, Rana Saha, A. Sundaresan, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The potassium vanadium oxide-fluoride phase β-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) Å, b = 7.5392(2) Å, c = 13.0506(4) Å, Z = 8]. The material is structurally similar and isoformulaic to d1 materials of formulae AVOF3 (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.

Original languageEnglish
Pages (from-to)1109-1114
Number of pages6
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume640
Issue number6
DOIs
Publication statusPublished - 2014

Fingerprint

Magnetic properties
Vanadium
Magnetic susceptibility
Alkali Metals
Bromides
Fluorides
Ammonium Compounds
Oxides
Anions
Cations
Potassium
Single crystals
Ions
X ray diffraction

Keywords

  • Heisenberg chain
  • Hydrothermal synthesis
  • Oxide-fluoride
  • Vanadium

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Synthesis and magnetic properties of β-KVOF3. / Donakowski, Martin D.; Lu, Hongcheng; Gautier, Romain; Saha, Rana; Sundaresan, A.; Poeppelmeier, Kenneth R.

In: Zeitschrift fur Anorganische und Allgemeine Chemie, Vol. 640, No. 6, 2014, p. 1109-1114.

Research output: Contribution to journalArticle

Donakowski, MD, Lu, H, Gautier, R, Saha, R, Sundaresan, A & Poeppelmeier, KR 2014, 'Synthesis and magnetic properties of β-KVOF3', Zeitschrift fur Anorganische und Allgemeine Chemie, vol. 640, no. 6, pp. 1109-1114. https://doi.org/10.1002/zaac.201300576
Donakowski, Martin D. ; Lu, Hongcheng ; Gautier, Romain ; Saha, Rana ; Sundaresan, A. ; Poeppelmeier, Kenneth R. / Synthesis and magnetic properties of β-KVOF3. In: Zeitschrift fur Anorganische und Allgemeine Chemie. 2014 ; Vol. 640, No. 6. pp. 1109-1114.
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