One-dimensional array of two- and three-center cation-cation bonds in the structure of Li-4 (UO2)(10)O-10(Mo2O8)

Alekseev, E. V., Krivovichev, S. V., Malcherek, T. and Depmeier, W. (2007) One-dimensional array of two- and three-center cation-cation bonds in the structure of Li-4 (UO2)(10)O-10(Mo2O8) Inorganic Chemistry, 46 (21). pp. 8442-8444. DOI 10.1021/ic7009385.

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Abstract

Dark-red crystals of the new compound Li-4[(UO2)(10)O-10(Mo2O8)] (1) have been obtained by high-temperature solid-state reactions. The structure of 1 (monoclinic, P2(1)/c, a = 7.9426(4) angstrom, b = 19.9895(9) angstrom, c = 10.0796(5) angstrom, beta = 90.575(2)degrees, V = 1600.24(13) angstrom(3), Z = 4) consists of a framework of U and Mo polyhedra with Li+ cations in the channels, The framework contains seven-polyhedrawide uranium oxide tapes interlinked by dimers of edge-sharing [4 + 1]-distorted MoO5 polyhedra. The U-O tapes are parallel to the a axis, and their planes are oriented parallel to (021) and (02 (1) over bar) so that they are cross-linked within the framework. The core of the tapes consists of unprecedented one-dimensional arrays of cation-cation-bonded uranyl ions. The arrays are constructed from eight-membered cycles with ulranyl ions linked through two- and three-center cation-cation interactions.

Document Type: Article
Keywords: crystal-structures uranyl molybdate open-framework nanotubules nanospheres selenate
Research affiliation: Kiel University > Faculty of Mathematics and Natural Sciences > Institute of Geosciences
DOI etc.: 10.1021/ic7009385
ISSN: 0020-1669
Date Deposited: 12 Jan 2012 06:00
Last Modified: 09 Oct 2012 03:56
URI: http://eprints.uni-kiel.de/id/eprint/15887

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