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Crystal structure features in a new compound C4B25Mg1.42

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Abstract

The composition of C4B25Mg1.42 crystal obtained by self-propagating high-temperature synthesis was determined using X-ray diffraction. This is the first crystalline structure where all boron atoms in the В12 icosahedron occupy crystallographically independent positions; this circumstance allowed us to analyze the effect of substituents on bond lengths in the icosahedron. The crystal structure features, including the channels filled with disordered Mg atoms and the spread of В—В endo- and exo-bond lengths in the icosahedra, are described. A crystallochemical analysis of pair bonds has been performed for the first time.

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Authors and Affiliations

  1. Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow, 142432, Russia

    S. V. Konovalikhin & V. I. Ponomarev

Authors
  1. S. V. Konovalikhin
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  2. V. I. Ponomarev
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Correspondence to S. V. Konovalikhin.

Additional information

Original Russian Text © S.V. Konovalikhin, V.I. Ponomarev, 2015, published in Kristallografiya, 2015, Vol. 60, No. 5, pp. 700–703.

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Konovalikhin, S.V., Ponomarev, V.I. Crystal structure features in a new compound C4B25Mg1.42 . Crystallogr. Rep. 60, 636–639 (2015). https://doi.org/10.1134/S1063774515050053

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  • DOI: https://doi.org/10.1134/S1063774515050053

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