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Redetermination of K(4)[Bi(2)Cl(10)]·4H(2)O
Mabrouk Khelifi1, Ridha Zouari, Abdelhamid Ben Salah
1Faculté des Sciences de Sfax, Laboratoire de Sciences des Matériaux et d'Environnement, BP 115 Sfax 3052, Tunisia.
Abstract:
In comparison with the previous refinement of tetra-potassium di-μ-chlorido-bis-[tetra-chloridobismuthate(III)] tetra-hydrate [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 inter-atomic distances. The crystal structure is built up of edge-sharing [Bi(2)Cl(10)](4-) double octa-hedra with the bridging Cl atoms situated on a mirror plane, three K(+) counter-cations (two of which are on mirror planes), and two water mol-ecules 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 mol-ecules and the complex anions stabilize this arrangement.
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