Ba5Cd2Sb4O2—A New Antimonide Oxide with a Complex Structure

Crystals

Gregory M. Darone¹ 

[1] id="af1-crystals-01-00206">Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, U

关键词: barium;    cadmium;    antimonide;    oxide;   

DOI  :  10.3390/cryst1030206

来源: mdpi

【 摘 要 】

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 polyanionicsub-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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.