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Scientific article
English

Opening a New Series of Calcium Boridecarbides with Heterographene Nets by Ca1-x(B,C)6 and Ca1-x(B,C)8: Two Members of the (CaB2)Cn Compound Series

Published inZeitschrift für anorganische und allgemeine Chemie, vol. 636, no. 8, p. 1447-1453
Publication date2010-06-11
First online date2010-06-11
Abstract

Ca1-xB2C4 (x ~ 0.08) and Ca1-xB2C6 (x ~ 0.04) are two compounds containing heterographene-B,C nets which were prepared by solid state synthesis and structurally characterized by X-ray powder diffraction data. Both compounds crystallize in the space group P6/ mmm (No. 191). The lattice constants are a = 4.55971(5) Å and c = 4.4020(1) Å for CaB2C4 and a = 2.58390(5) Å, c = 4.43597(8) Å for CaB2C6. The calcium atoms are intercalated between the heterographene (B,C) nets. The calcium atom distribution in Ca1-xB2C6 is disordered, leading to diffuse scattering. A model for this disorder was developed that matches well the observed diffuse scattering observed in the electron diffraction pattern. For Ca1-xB2C6 and its decomposition products magnetic and electric properties are being reported.

eng
Keywords
  • Calcium
  • Boron
  • Carbides
  • Calcium boride carbide
  • X-ray diffraction
Affiliation Not a UNIGE publication
Research group
Citation (ISO format)
WÖRLE, Michael et al. Opening a New Series of Calcium Boridecarbides with Heterographene Nets by Ca<sub>1-x</sub>(B,C)<sub>6</sub> and Ca<sub>1-x</sub>(B,C)<sub>8</sub>: Two Members of the (CaB<sub>2</sub>)Cn Compound Series. In: Zeitschrift für anorganische und allgemeine Chemie, 2010, vol. 636, n° 8, p. 1447–1453. doi: 10.1002/zaac.201000134
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ISSN of the journal0044-2313
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