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Crystal structure of hexakis(N,N-dimethylacetamide)ytterbium(III) dodecawolframophosphate [Yb(DMAA)6]PW12O40

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Abstract

An X-ray diffraction study of the [Yb(DMAA)6]PW12O40 complex (DMAA is N,N-dimethylacetamide) is performed. The structure contains isolated cationic complexes [Yb(DMAA)6]3+ and heteropolyanions PW12O 3−40 . The cationic complexes and the heteropolyanions occupy centrosymmetric positions. The coordination polyhedron of the Yb atom is a slightly distorted octahedron. Unlike the Nd complex of the same composition, which was studied earlier, O atoms of the heteropolyanion are not included in the Yb coordination. All the O atoms of the heteropolyanion are disordered. Analysis of the disordering reveals that the heteropolyanion has a Keggin structure (α isomer), and its disordering results from the centrosymmetric position.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    M. S. Grigor'ev, I. B. Shirokova & A. M. Fedoseev

  2. CEA Marcoule, DEN/DRCP/SCPS/LCAM, 30207 Bagnols-sur-Céze, France

    C. Den Auwer

Authors
  1. M. S. Grigor'ev
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  2. I. B. Shirokova
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  3. A. M. Fedoseev
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  4. C. Den Auwer
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Translated from Kristallografiya, Vol. 48, No. 4, 2003, pp. 688–690.

Original Russian Text Copyright © 2003 by Grigor'ev, Shirokova, Fedoseev, Den Auwer.

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Grigor'ev, M.S., Shirokova, I.B., Fedoseev, A.M. et al. Crystal structure of hexakis(N,N-dimethylacetamide)ytterbium(III) dodecawolframophosphate [Yb(DMAA)6]PW12O40 . Crystallogr. Rep. 48, 638–640 (2003). https://doi.org/10.1134/1.1595192

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  • DOI: https://doi.org/10.1134/1.1595192

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