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Research article - Peer-reviewed, 2014

A structural study of D-mannitolatodimolybdate(VI) complexes in aqueous solution

Pettersson, Lage; Lyxell, Dan-Göran; Persson, Ingmar


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 MoMo 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.


Molybdate; D-mannitol; Structure; Aqueous solution; LAXS

Published in

2014, volume: 81, pages: 308-311

Authors' information

Pettersson, Lage
Umeå University
Lyxell, Dan-Göran
Umeå University
Swedish University of Agricultural Sciences, The Department of Chemistry and Biotechnology

UKÄ Subject classification

Inorganic Chemistry

Publication Identifiers


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