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Direct Imaging of Octahedral Distortion in a Complex Molybdenum Vanadium Mixed Oxide

MPS-Authors
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Lunkenbein,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Girgsdies,  Frank
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Wernbacher,  Anna Maria
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Noack,  Johannes
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Auffermann,  G.
Gudrun Auffermann, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Klein-Hoffmann,  Achim
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Eichelbaum,  Maik
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Trunschke,  Annette
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Max-Planck-Institut für Chemische Energiekonversion;

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Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Lunkenbein, T., Girgsdies, F., Wernbacher, A. M., Noack, J., Auffermann, G., Yasuhara, A., et al. (2015). Direct Imaging of Octahedral Distortion in a Complex Molybdenum Vanadium Mixed Oxide. Angewandte Chemie International Edition, 54(23), 6828-6831. doi:10.1002/anie.201502236.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-A36E-F
Abstract
Complex Mo,V-based mixed oxides that crystallize in the orthorhombic M1-type structure are promising candidates for the selective oxidation of small alkanes. The oxygen sublattice of such a complex oxide has been studied by annular bright field scanning transmission electron microscopy. The recorded micrographs directly display the local distortion in the metal oxygen octahedra. From the degree of distortion we are able to draw conclusions on the distribution of oxidation states in the cation columns at different sites. The results are supported by X-ray diffraction and electron paramagnetic resonance measurements that provide integral details about the crystal structure and spin coupling, respectively.