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Crystal and molecular structures of mixedvalence octanuclear cobalt(II,III) propionate and butyrate with an etagerelike core
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen. (Technical Chemistry)
2012 (engelsk)Inngår i: Russian chemical bulletin, ISSN 1066-5285, E-ISSN 1573-9171, Vol. 61, nr 4, s. 821-827Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The new mixed-valence octanuclear cobalt carboxylate complexes [CoII4CoIII4(μ4-O)4-(μ3-OMe)4(μ-O2CR)6(O2CR)2(H2O)6]·4H2O, where R = Et (3) or n-Pr (4), were investigated by X-ray diffraction analysis. Complexes 3 and 4 have a molecular octanuclear structure, and they are valence trapped, and contain four cobalt atoms Co3+ in the central cubane fragment with four cobalt atoms Co2+ at the periphery of the molecules. The molecules of the complexes are stabilized by four intramolecular hydrogen bonds and are linked, together with water solvent molecules, by intermolecular hydrogen bonds to form a three-dimensional supramolecular system.

sted, utgiver, år, opplag, sider
Springer Science+Business Media B.V., 2012. Vol. 61, nr 4, s. 821-827
Emneord [en]
cobalt, carboxylate complexes, mixedvalence complexes, Xray diffraction analysis, supramolecular ensembles
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Identifikatorer
URN: urn:nbn:se:umu:diva-66464DOI: 10.1007/s11172-012-0114-6ISI: 000314272400010OAI: oai:DiVA.org:umu-66464DiVA, id: diva2:606879
Tilgjengelig fra: 2013-02-21 Laget: 2013-02-21 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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