Synthesis and magnetic and transport properties of Sr6V9S22O2: 'AM2S5' phases revisited

J. B. Litteer, B. H. Chen, James C. Fettinger, B. W. Eichhorn, H. L. Ju, R. L. Greene

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Abstract

The compound Sr6V9S22O2 was prepared from SrS, sulfur, vanadium metal, and V2O5 at 950 °C in an evacuated quartz tube. The compound is rhombohedral, R3, with a = 8.7538(6) Å, c = 34.934(3) Å, and Z = 3, and shows strong preferred orientation in its XRD profiles (00l) due to the layered nature of the structure. The compound contains charged CdI2 type VS2 layers of formula [V7S14]4- separated by [Sr6(VOS3)2(S2)]4+ layers. The latter has VOS33- tetrahedra and S22- disulfide units linked by Sr2+ ions. Magnetic susceptibility and four-probe resistivity studies show essentially temperature-independent paramagnetism above 80 K and small gap semiconductor behavior, respectively. The compound has a positive Hall coefficient at room temperature. The relationship among Sr6V9S22O2, 'SrV2S5' (J. Solid State Chem. 1996, 126, 189), and other AM2S5 phases is discussed.

Original languageEnglish
Pages (from-to)458-462
Number of pages5
JournalInorganic Chemistry
Volume39
Issue number3
DOIs
Publication statusPublished - 2000 Feb 7

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Transport properties
Magnetic properties
transport properties
magnetic properties
Paramagnetism
Vanadium
Quartz
paramagnetism
disulfides
synthesis
Magnetic susceptibility
Sulfur
tetrahedrons
Disulfides
vanadium
Hall effect
sulfur
quartz
Metals
Ions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Litteer, J. B., Chen, B. H., Fettinger, J. C., Eichhorn, B. W., Ju, H. L., & Greene, R. L. (2000). Synthesis and magnetic and transport properties of Sr6V9S22O2: 'AM2S5' phases revisited. Inorganic Chemistry, 39(3), 458-462. https://doi.org/10.1021/ic990356f
Litteer, J. B. ; Chen, B. H. ; Fettinger, James C. ; Eichhorn, B. W. ; Ju, H. L. ; Greene, R. L. / Synthesis and magnetic and transport properties of Sr6V9S22O2 : 'AM2S5' phases revisited. In: Inorganic Chemistry. 2000 ; Vol. 39, No. 3. pp. 458-462.
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Litteer, JB, Chen, BH, Fettinger, JC, Eichhorn, BW, Ju, HL & Greene, RL 2000, 'Synthesis and magnetic and transport properties of Sr6V9S22O2: 'AM2S5' phases revisited', Inorganic Chemistry, vol. 39, no. 3, pp. 458-462. https://doi.org/10.1021/ic990356f

Synthesis and magnetic and transport properties of Sr6V9S22O2 : 'AM2S5' phases revisited. / Litteer, J. B.; Chen, B. H.; Fettinger, James C.; Eichhorn, B. W.; Ju, H. L.; Greene, R. L.

In: Inorganic Chemistry, Vol. 39, No. 3, 07.02.2000, p. 458-462.

Research output: Contribution to journalArticle

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AU - Litteer, J. B.

AU - Chen, B. H.

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AU - Ju, H. L.

AU - Greene, R. L.

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N2 - The compound Sr6V9S22O2 was prepared from SrS, sulfur, vanadium metal, and V2O5 at 950 °C in an evacuated quartz tube. The compound is rhombohedral, R3, with a = 8.7538(6) Å, c = 34.934(3) Å, and Z = 3, and shows strong preferred orientation in its XRD profiles (00l) due to the layered nature of the structure. The compound contains charged CdI2 type VS2 layers of formula [V7S14]4- separated by [Sr6(VOS3)2(S2)]4+ layers. The latter has VOS33- tetrahedra and S22- disulfide units linked by Sr2+ ions. Magnetic susceptibility and four-probe resistivity studies show essentially temperature-independent paramagnetism above 80 K and small gap semiconductor behavior, respectively. The compound has a positive Hall coefficient at room temperature. The relationship among Sr6V9S22O2, 'SrV2S5' (J. Solid State Chem. 1996, 126, 189), and other AM2S5 phases is discussed.

AB - The compound Sr6V9S22O2 was prepared from SrS, sulfur, vanadium metal, and V2O5 at 950 °C in an evacuated quartz tube. The compound is rhombohedral, R3, with a = 8.7538(6) Å, c = 34.934(3) Å, and Z = 3, and shows strong preferred orientation in its XRD profiles (00l) due to the layered nature of the structure. The compound contains charged CdI2 type VS2 layers of formula [V7S14]4- separated by [Sr6(VOS3)2(S2)]4+ layers. The latter has VOS33- tetrahedra and S22- disulfide units linked by Sr2+ ions. Magnetic susceptibility and four-probe resistivity studies show essentially temperature-independent paramagnetism above 80 K and small gap semiconductor behavior, respectively. The compound has a positive Hall coefficient at room temperature. The relationship among Sr6V9S22O2, 'SrV2S5' (J. Solid State Chem. 1996, 126, 189), and other AM2S5 phases is discussed.

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