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

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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    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