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2005
Uranium
I 5900
19- 021
K5(UO2)2[Si4O12(OH)]: A Uranyl Silicate Containing Chains of Four Silicate Tetrahedra Linked by SiO···HOSi Hydrogen Bonds. — The new title compound (IV)
(yield given in gram) crystallizes in the orthorhombic space group Pbcm with Z = 8
(single crystal XRD). Its structure consists of unbranched chains of four silicate tetrahedra linked together via corner-sharing with UO6 tetragonal bipyramids to form a
three-dimensional framework with intersecting channels hosting the K+ ions. Adjacent
chains are interconnected via hydrogen bonds. — (CHEN, C.-S.; KAO, H.-M.; LII*,
K.-H.; Inorg. Chem. 44 (2005) 4, 935-940; Dep. Chem., Natl. Cent. Univ.,
Chungli 320, Taiwan; Eng.) — Schramke
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