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

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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Abstract

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 3.0).

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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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