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Journal Article

The crystal structure of a new mixed valence arsenic(III,V)oxoacid H6As3+7As5+7O31

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

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Dinnebier,  R. E.
Scientific Facility X-Ray Diffraction (Robert E. Dinnebier), Max Planck Institute for Solid State Research, Max Planck Society;

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Balog,  P.
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

Orosel, D., Dinnebier, R. E., Balog, P., & Jansen, M. (2007). The crystal structure of a new mixed valence arsenic(III,V)oxoacid H6As3+7As5+7O31. Zeitschrift für Kristallographie, 222(7), 321-325.


Cite as: https://hdl.handle.net/21.11116/0000-000E-B520-1
Abstract
We report on a new mixed valence arsenic(III,V)oxoacid H6As73+As75+O31 which crystallizes in the hexagonal space group P6(3) (no. 173), with lattice parameters a = 12.0525(1) angstrom, c = 4.7344(l) angstrom, v = 595.6(1) angstrom(3) and Z = 2. This phase is metastable and upon heating the RT-phase of As2O5 is recovered. The structure exhibits the first As5+ atom with a fivefold coordination by oxygen atoms in the shape of a distorted square pyramid. The positions of the hydrogen atoms were determined during the structure refinement from high resolution synchrotron powder diffraction data by difference Fourier analysis.