Covalent functionalization of polyoxometalates

ARTICLES

- Developing remote metal binding sites in heteropolymolybdates, Pierre R. Marcoux, Bernold Hasenknopf*, Jacqueline Vaissermann, Pierre Gouzerh, European Journal of Inorganic Chemistry, 2003, 2406-2412. (download article )

Keywords: Polyoxometalates / Molybdenum / N ligands / Coordination chemistry

Abstract : Anderson-type polyoxomolybdates [MMo₆O₁₈{(OCH₂)₃-CNH₂}₂]₃. (M = Mn^III, Fe^III) were prepared and structurally characterized. The tris(alkoxo) ligands are bound to the central heteroatom via their oxygen atoms. The corresponding compounds with M = Ni^II or Zn^II are not accessible since these cations have a preference for the amino functionality. The pendant amino groups of the manganese-containing derivative react with pyridinecarbaldehydes to give the corresponding imines. This provides new mono- and bidentate binding sites for metal cations.

Structure of the anion [MnMo6O18{(OCH2)3CNH2}2]3–; the TRIS ligands cap both sides of the Anderson structure

CONFERENCES

- From functionalised polyoxometalates towards supramolecular assemblies (poster), Bernold Hasenknopf*, Pierre R. Marcoux, Fabienne Peyrot, Renaud Delmont, Pierre Gouzerh, Polyoxometalates : from topology to industrial applications, Bielefeld (Germany), October 1999.