Manganese Vanadate Chemistry in Hydrothermal BaF2 Brines: Ba3Mn2(V2O7)2F2 and Ba7Mn8O2(VO4)2F23

Liurukara D. Sanjeewa; Colin D. McMillen; Michael A. McGuire; Joseph W. Kolis

doi:10.1021/acs.inorgchem.6b02355

Manganese Vanadate Chemistry in Hydrothermal BaF₂ Brines: Ba₃Mn₂(V₂O₇)₂F₂ and Ba₇Mn₈O₂(VO₄)₂F₂₃

Liurukara D. Sanjeewa, Colin D. McMillen, Michael A. McGuire, Joseph W. Kolis

Correlated Electron Materials

Research output: Contribution to journal › Article › peer-review

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Abstract

Manganese vanadate fluorides were synthesized using high-temperature hydrothermal techniques with BaF₂ as a mineralizer. Ba₃Mn₂(V₂O₇)₂F₂ crystallizes in space group C2/c and consists of dimers built from edge-sharing MnO₄F₂ trigonal prisms with linking V₂O₇ groups. Ba₇Mn₈O₂(VO₄)₂F₂₃ crystallizes in space group Cmmm, with a manganese oxyfluoride network built from edge- and corner-sharing Mn^2+/3+(O,F)₆ octahedra. These octahedra form alternating Mn²⁺ and Mn^2+/3+ layers separated by VO₄ tetrahedra. This latter compound exhibits a canted antiferromagnetic order below T_N = 25 K.

Original language	English
Pages (from-to)	12512-12515
Number of pages	4
Journal	Inorganic Chemistry
Volume	55
Issue number	24
DOIs	https://doi.org/10.1021/acs.inorgchem.6b02355
State	Published - Dec 19 2016

Funding

The authors thank the National Science Foundation (Grant DMR-1410727) for financial support. Magnetic studies (M.A.M.) were supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.

Funders	Funder number
National Science Foundation	DMR-1410727
U.S. Department of Energy
Office of Science
Basic Energy Sciences
Division of Materials Sciences and Engineering

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title = "Manganese Vanadate Chemistry in Hydrothermal BaF2 Brines: Ba3Mn2(V2O7)2F2 and Ba7Mn8O2(VO4)2F23",

abstract = "Manganese vanadate fluorides were synthesized using high-temperature hydrothermal techniques with BaF2 as a mineralizer. Ba3Mn2(V2O7)2F2 crystallizes in space group C2/c and consists of dimers built from edge-sharing MnO4F2 trigonal prisms with linking V2O7 groups. Ba7Mn8O2(VO4)2F23 crystallizes in space group Cmmm, with a manganese oxyfluoride network built from edge- and corner-sharing Mn2+/3+(O,F)6 octahedra. These octahedra form alternating Mn2+ and Mn2+/3+ layers separated by VO4 tetrahedra. This latter compound exhibits a canted antiferromagnetic order below TN = 25 K.",

author = "Sanjeewa, {Liurukara D.} and McMillen, {Colin D.} and McGuire, {Michael A.} and Kolis, {Joseph W.}",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

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doi = "10.1021/acs.inorgchem.6b02355",

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T2 - Ba3Mn2(V2O7)2F2 and Ba7Mn8O2(VO4)2F23

AU - Sanjeewa, Liurukara D.

AU - McMillen, Colin D.

AU - McGuire, Michael A.

AU - Kolis, Joseph W.

PY - 2016/12/19

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N2 - Manganese vanadate fluorides were synthesized using high-temperature hydrothermal techniques with BaF2 as a mineralizer. Ba3Mn2(V2O7)2F2 crystallizes in space group C2/c and consists of dimers built from edge-sharing MnO4F2 trigonal prisms with linking V2O7 groups. Ba7Mn8O2(VO4)2F23 crystallizes in space group Cmmm, with a manganese oxyfluoride network built from edge- and corner-sharing Mn2+/3+(O,F)6 octahedra. These octahedra form alternating Mn2+ and Mn2+/3+ layers separated by VO4 tetrahedra. This latter compound exhibits a canted antiferromagnetic order below TN = 25 K.

AB - Manganese vanadate fluorides were synthesized using high-temperature hydrothermal techniques with BaF2 as a mineralizer. Ba3Mn2(V2O7)2F2 crystallizes in space group C2/c and consists of dimers built from edge-sharing MnO4F2 trigonal prisms with linking V2O7 groups. Ba7Mn8O2(VO4)2F23 crystallizes in space group Cmmm, with a manganese oxyfluoride network built from edge- and corner-sharing Mn2+/3+(O,F)6 octahedra. These octahedra form alternating Mn2+ and Mn2+/3+ layers separated by VO4 tetrahedra. This latter compound exhibits a canted antiferromagnetic order below TN = 25 K.

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Manganese Vanadate Chemistry in Hydrothermal BaF₂ Brines: Ba₃Mn₂(V₂O₇)₂F₂ and Ba₇Mn₈O₂(VO₄)₂F₂₃

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