Polyoxometalates (POMs) as �soluble molecular metal oxides� feature a remarkable stability and, even more interesting, a distinct redox behavior. Therefore, such clusters are highly suitable for an implementation into photophysical or electrochemical systems. Their appropriate chemical modification enables the preparation of inorganic-organic hybrids combining the properties of both subunits: The ability of POMs to serve as an electron reservoir and the opto-electronic behavior of the attached organic/organometallic part. The covalent (or electrostatic) binding of opto-electronically active transition metal complexes, based on metal centers such as Ru(II) or Ir(III), to a POM might allow photo-induced electron-transfer (PET) processes.Various strategies to covalently combine POM units with terpyridine-containing organic ligands (as well as their transition metal complexes) have been employed. The hybrid ligands have been fully characterized and investigated with respect to their electrochemical properties. First examples for dyads comprising a terypridine complex, as donor part, and a POM unit, as acceptor, have also been obtained.

Polyoxometalate-containing metallo-supramolecular assemblies

248th National Meeting (2014)

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