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Acta Cryst. (2008). E64, i80 [ doi:10.1107/S1600536808035435 ]
Abstract: In comparison with the previous refinement of tetrapotassium di-![[mu]](/logos/entities/mu_rmgif.gif)
-chlorido-bis[tetrachloridobismuthate(III)] tetrahydrate [Volkova, Udovenko, Levin & Shevchenko (1983). Koord. Khim. 9, 356-360], the current redetermination reveals anisotropic displacement parameters for all non-H atoms, localization of the H atoms, and higher precision of lattice parameters and interatomic distances. The crystal structure is built up of edge-sharing [Bi2Cl10]4- double octahedra with the bridging Cl atoms situated on a mirror plane, three K+ counter-cations (two of which are on mirror planes), and two water molecules that are solely coordinated to the K+ cations. These building units are linked into a three-dimensional network structure. Additional O-H
Cl hydrogen bonds between the water molecules and the complex anions stabilize this arrangement.
Online 8 November 2008
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