Crystal structures of the high temperature forms of V8O 15 and V9O17 and structural trends in the VnO2n-1 Magnéli series

J. M. Allred; R. J. Cava

doi:10.1016/j.jssc.2012.09.030

Crystal structures of the high temperature forms of V₈O ₁₅ and V₉O₁₇ and structural trends in the V_nO_2n-1 Magnéli series

J. M. Allred, R. J. Cava

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

14 Scopus citations

Abstract

We report the structure of the metallic high-temperature (ht) form of V₉O₁₇, determined from single crystal X-ray diffraction: space group=P-1 a=5.4219(7) Å, b=7.0142(9) Å, c=14.5252(19) Å, α=97.0310(10)°, β=90.9900(10)°, γ=108.9630(10)°, V=517.53(12) Å³, and Z=2. We also report refinement of the structure of metallic ht-V₈O₁₅, space group=P-1, a=5.4315(17) Å, b=7.015(2) Å, c=13.147(5) Å, α=100.144(4)°, β=95.776(4)°, γ=108.965(3)°, V=459.6(3) Å³, and Z=2. The structure of metallic V ₉O₁₇ is interpreted and discussed in the context of the V_nO_2n-1 Magnéli phases, yielding trends about how the underlying forces contribute to the metal to insulator transition (MIT). The manner in which structural features of the metallic phases change as a function of n supports previous arguments that there is a turnover in the forces leading to the MIT between n=6 and n=8.

Original language	English (US)
Pages (from-to)	10-17
Number of pages	8
Journal	Journal of Solid State Chemistry
Volume	198
DOIs	https://doi.org/10.1016/j.jssc.2012.09.030
State	Published - Feb 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Keywords

Magnéli phase
Single crystal X-ray diffraction
VO
VO
VO

Access to Document

10.1016/j.jssc.2012.09.030

Cite this

@article{eb1a427fbaf648a58bf7e39fae1d14e8,

title = "Crystal structures of the high temperature forms of V8O 15 and V9O17 and structural trends in the VnO2n-1 Magn{\'e}li series",

abstract = "We report the structure of the metallic high-temperature (ht) form of V9O17, determined from single crystal X-ray diffraction: space group=P-1 a=5.4219(7) {\AA}, b=7.0142(9) {\AA}, c=14.5252(19) {\AA}, α=97.0310(10)°, β=90.9900(10)°, γ=108.9630(10)°, V=517.53(12) {\AA}3, and Z=2. We also report refinement of the structure of metallic ht-V8O15, space group=P-1, a=5.4315(17) {\AA}, b=7.015(2) {\AA}, c=13.147(5) {\AA}, α=100.144(4)°, β=95.776(4)°, γ=108.965(3)°, V=459.6(3) {\AA}3, and Z=2. The structure of metallic V 9O17 is interpreted and discussed in the context of the VnO2n-1 Magn{\'e}li phases, yielding trends about how the underlying forces contribute to the metal to insulator transition (MIT). The manner in which structural features of the metallic phases change as a function of n supports previous arguments that there is a turnover in the forces leading to the MIT between n=6 and n=8.",

keywords = "Magn{\'e}li phase, Single crystal X-ray diffraction, VO, VO, VO",

author = "Allred, {J. M.} and Cava, {R. J.}",

note = "Funding Information: We thank P. Stephens for help in collecting preliminary data and S.E. Dutton, A.J. Williams, and J. van Wezel for helpful discussions. The research at Princeton University was supported by the National Science Foundation , grant DMR-1005438 . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

month = feb,

doi = "10.1016/j.jssc.2012.09.030",

language = "English (US)",

volume = "198",

pages = "10--17",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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T1 - Crystal structures of the high temperature forms of V8O 15 and V9O17 and structural trends in the VnO2n-1 Magnéli series

AU - Allred, J. M.

AU - Cava, R. J.

N1 - Funding Information: We thank P. Stephens for help in collecting preliminary data and S.E. Dutton, A.J. Williams, and J. van Wezel for helpful discussions. The research at Princeton University was supported by the National Science Foundation , grant DMR-1005438 . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013/2

Y1 - 2013/2

N2 - We report the structure of the metallic high-temperature (ht) form of V9O17, determined from single crystal X-ray diffraction: space group=P-1 a=5.4219(7) Å, b=7.0142(9) Å, c=14.5252(19) Å, α=97.0310(10)°, β=90.9900(10)°, γ=108.9630(10)°, V=517.53(12) Å3, and Z=2. We also report refinement of the structure of metallic ht-V8O15, space group=P-1, a=5.4315(17) Å, b=7.015(2) Å, c=13.147(5) Å, α=100.144(4)°, β=95.776(4)°, γ=108.965(3)°, V=459.6(3) Å3, and Z=2. The structure of metallic V 9O17 is interpreted and discussed in the context of the VnO2n-1 Magnéli phases, yielding trends about how the underlying forces contribute to the metal to insulator transition (MIT). The manner in which structural features of the metallic phases change as a function of n supports previous arguments that there is a turnover in the forces leading to the MIT between n=6 and n=8.

AB - We report the structure of the metallic high-temperature (ht) form of V9O17, determined from single crystal X-ray diffraction: space group=P-1 a=5.4219(7) Å, b=7.0142(9) Å, c=14.5252(19) Å, α=97.0310(10)°, β=90.9900(10)°, γ=108.9630(10)°, V=517.53(12) Å3, and Z=2. We also report refinement of the structure of metallic ht-V8O15, space group=P-1, a=5.4315(17) Å, b=7.015(2) Å, c=13.147(5) Å, α=100.144(4)°, β=95.776(4)°, γ=108.965(3)°, V=459.6(3) Å3, and Z=2. The structure of metallic V 9O17 is interpreted and discussed in the context of the VnO2n-1 Magnéli phases, yielding trends about how the underlying forces contribute to the metal to insulator transition (MIT). The manner in which structural features of the metallic phases change as a function of n supports previous arguments that there is a turnover in the forces leading to the MIT between n=6 and n=8.

KW - Magnéli phase

KW - Single crystal X-ray diffraction

KW - VO

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