Synthesis and crystal structure analysis of KAg11(VO4)4

Kovalevskiy, A.; Jansen, M.

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Synthesis and crystal structure analysis of KAg₁₁(VO₄)₄

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Kovalevskiy, A.
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Jansen, M.
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Kovalevskiy, A., & Jansen, M. (2006). Synthesis and crystal structure analysis of KAg₁₁(VO₄)₄. Zeitschrift für anorganische und allgemeine Chemie, 632(3), 413-416.

Cite as: https://hdl.handle.net/21.11116/0000-000F-02B5-2

Abstract

New potassium silver vanadate KAg11(VO4)(4) was obtained by reacting
the stoichiometric mixture of Ag2O and V2O5 at elevated oxygen
pressure, adding a small portion of aqueous KOH. The synthesis was done
at 573 K and 430 MPa of oxygen pressure. The crystal structure was
solved by direct methods basing on single crystal diffraction data
(Pbca, Z = 4, a = 16.533(l), b = 10.6286(7), c = 10.5452(7) angstrom,
3983 independent reflections, R-1 = 5.4%). The optical band gap for
KAg11(VO4)(4) was determined as 2.0 eV According to magnetic
measurements, KAg11 (VO4)(4) is diamagnetic.