«If you look at the diverse chemistry of mononuclear complexes, imagine what the future would hold in polymetallic systems for cooperative reactivity in catalysis».1 A current frontier area in organometallic catalysis is cooperative activity between two distinct metal centers in order to foster new transformations not possible otherwise. Associating early and late transition metals in molecular edifices is thus particularly attractive, yet still underexplored. In this presentation we will describe our latest results focussed on the development of new modular synthetic approaches to yield well-defined Ta/group 9 species. Various synthetic methodologies will be portrayed, either by (i) taking advantage of original bifunctional ligands to direct the assembly of the two distinct metals or (ii) through the formation of strong unsupported metal-metal multiple bonds. The synthesis, advanced characterization, structure and reactivity of these unique early-late heterobimetallic species will be presented.

Towards tantalum-based early-late heterobimetallic complexes

255th National Meeting (2018)

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