MersV1, PubMed, Corpus, bibRecord, 001E25

Tetra-μ(2)-acetato-tetraaquadi-μ(3)-oxido-octaoxidotetrauranium(VI) methanol disolvate tetrahydrate.

Identifieur interne : 001E25 ( PubMed/Corpus ); précédent : 001E24; suivant : 001E26

Tetra-μ(2)-acetato-tetraaquadi-μ(3)-oxido-octaoxidotetrauranium(VI) methanol disolvate tetrahydrate.

Auteurs : Hisham Sleem ; Paris Georghiou ; Louise N. Dawe

Source :

Acta crystallographica. Section E, Structure reports online [ 1600-5368 ] ; 2011.

RBID : pubmed:22199642

Abstract

The centrosymmetric title tetra-mer, [U(4)(C(2)H(3)O(2))(4)O(10)(H(2)O)(4)]·2CH(4)O, has a near planar core [maximum deviation from the least squares plane of 0.294 (6) Å]. It consists of two hexa-gonal-bipyramidally coordinated U(VI) atoms connected via μ(2)-O (acetate) and μ(3)-O (oxide) bridges in the equatorial plane to two penta-gonal-bipyramidally coordinated U(VI) atoms. The equatorial plane of each U(VI) atom is completed by a bound water mol-ecule, while the axial positions are occupied by uranyl (UO(2))(2+) O atoms. Multiple O-H⋯O hydrogen bonds are present, including a lattice methanol mol-ecule bound to one of the penta-gonal bipyramidal uranyl O atoms, as well as two different C(1) (1)(6) chains orginating from a donor water mol-ecule, via a uranyl oxygen acceptor and an acetate acceptor on different, adjacent tetra-mers. Finally, the unit cell contains four U(VI) tetra-mers, all connected by hydrogen bonding, forming a supra-molecular R(4) (4)(24) ring.

DOI: 10.1107/S1600536811050549
PubMed: 22199642

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pubmed:22199642

Le document en format XML

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<front><div type="abstract" xml:lang="en">The centrosymmetric title tetra-mer, [U(4)(C(2)H(3)O(2))(4)O(10)(H(2)O)(4)]·2CH(4)O, has a near planar core [maximum deviation from the least squares plane of 0.294 (6) Å]. It consists of two hexa-gonal-bipyramidally coordinated U(VI) atoms connected via μ(2)-O (acetate) and μ(3)-O (oxide) bridges in the equatorial plane to two penta-gonal-bipyramidally coordinated U(VI) atoms. The equatorial plane of each U(VI) atom is completed by a bound water mol-ecule, while the axial positions are occupied by uranyl (UO(2))(2+) O atoms. Multiple O-H⋯O hydrogen bonds are present, including a lattice methanol mol-ecule bound to one of the penta-gonal bipyramidal uranyl O atoms, as well as two different C(1) (1)(6) chains orginating from a donor water mol-ecule, via a uranyl oxygen acceptor and an acetate acceptor on different, adjacent tetra-mers. Finally, the unit cell contains four U(VI) tetra-mers, all connected by hydrogen bonding, forming a supra-molecular R(4) (4)(24) ring.</div>
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<Abstract><AbstractText>The centrosymmetric title tetra-mer, [U(4)(C(2)H(3)O(2))(4)O(10)(H(2)O)(4)]·2CH(4)O, has a near planar core [maximum deviation from the least squares plane of 0.294 (6) Å]. It consists of two hexa-gonal-bipyramidally coordinated U(VI) atoms connected via μ(2)-O (acetate) and μ(3)-O (oxide) bridges in the equatorial plane to two penta-gonal-bipyramidally coordinated U(VI) atoms. The equatorial plane of each U(VI) atom is completed by a bound water mol-ecule, while the axial positions are occupied by uranyl (UO(2))(2+) O atoms. Multiple O-H⋯O hydrogen bonds are present, including a lattice methanol mol-ecule bound to one of the penta-gonal bipyramidal uranyl O atoms, as well as two different C(1) (1)(6) chains orginating from a donor water mol-ecule, via a uranyl oxygen acceptor and an acetate acceptor on different, adjacent tetra-mers. Finally, the unit cell contains four U(VI) tetra-mers, all connected by hydrogen bonding, forming a supra-molecular R(4) (4)(24) ring.</AbstractText>
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Tetra-μ(2)-acetato-tetraaquadi-μ(3)-oxido-octaoxidotetrauranium(VI) methanol disolvate tetrahydrate.

Tetra-μ(2)-acetato-tetraaquadi-μ(3)-oxido-octaoxidotetrauranium(VI) methanol disolvate tetrahydrate.

Source :

Abstract

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