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A structural study of D-mannitolatodimolybdate(VI) complexes in aqueous solution
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
2014 (English)In: Polyhedron, ISSN 0277-5387, Vol. 81, 308-311 p.Article in journal (Refereed) Published
Abstract [en]

Abstract The structure of the D-mannitolatodimolybdate(VI) complex has been determined by means of large angle X-ray scattering (LAXS) in aqueous solution at two pH values, 2.0 and 5.5. The two complexes have in principle the same structure in aqueous solution, two face-sharing molybdate(VI) octahedra connected to one D-mannitol ligand, as previously observed in the solid state. In the deprotonated form of the complex, pH 5.5, the D-mannitol ligand has lost a proton and as a result the Mo⋅⋅⋅Mo distance is 0.054 Å shorter than the protonated form, pH 2.0. This indicates that it is a proton on an oxygen shared by molybdate groups that leaves the complex at deprotonation and forces the molydate(VI) octahedra even closer to each other.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 81, 308-311 p.
Keyword [en]
molybdate, D-mannitol, structure, aqueous solution, LAXS
National Category
Inorganic Chemistry
URN: urn:nbn:se:umu:diva-93767DOI: 10.1016/j.poly.2014.06.035ISI: 000343339600038OAI: diva2:751045
Available from: 2014-09-30 Created: 2014-09-30 Last updated: 2014-11-26Bibliographically approved

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Pettersson, LageLyxell, Dan-Göran
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