Preparative Inorganic Chemistry
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ChemInform Abstract: Structural Novelties in Anionic Cluster Halide Phases. Discrete Tetrahedral A4Br+ Ions in Two New Zirconium Bromide Structures (A: Na—Cs).
First published: 23 June 2010
Abstract
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ChemInform Abstract
Two series of quaternary cluster phases containing M4Br3+ ions (M: Na—Cs) are prepared by reactions of MBr, Zr, ZrBr4, and an interstitial Z element (Z = Be, B, H, Mn) in Ta containers at 850 °C. The tetragonal (Cs4Br)Zr6Br16B (Pr4r21 m, Z = 2) contains a new type of puckered Zr6Br16 layers with Cs4Br3+ in tunnels normal to the layers. (K4Br)2Zr6Br18B crystallizes in the cubic space group Fmr3rm with Z = 4 (inverse fluorite type).
