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Crystals 2011, 1(3), 206-214; doi:10.3390/cryst1030206

Ba5Cd2Sb4O2—A New Antimonide Oxide with a Complex Structure

 and *
Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
* Author to whom correspondence should be addressed.
Received: 18 August 2011 / Revised: 14 September 2011 / Accepted: 19 September 2011 / Published: 20 September 2011
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Synthesis and single-crystal X-ray structure determination of the new antimonide oxide, Ba5Cd2Sb4O2 are reported. Ba5Cd2Sb4O2 crystallizes in the monoclinic space group C2/m (No. 12) with unit cell parameters: a = 17.247(7) Å, b = 4.9279(18) Å, c = 12.240(5) Å, and β = 132.558(4)°; Z = 2. Its crystal structure can be described as a polyanionic [Cd2Sb4]6– sub-lattice made up of fused CdSb4 tetrahedra, stacked between puckered slabs of oxo-anions, O2–, and Ba2+ cations. This structure can also be described as a “double-salt”, i.e., a structure composed of fragments from the Zintl phase Ba3Cd2Sb4 intercalated by two BaO-like moieties. The topological similarities between the structures of these compounds are discussed.
Keywords: barium; cadmium; antimonide; oxide barium; cadmium; antimonide; oxide
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Darone, G.M.; Bobev, S. Ba5Cd2Sb4O2—A New Antimonide Oxide with a Complex Structure. Crystals 2011, 1, 206-214.

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