A ruthenium(II) allenylidene complex with a 4,5-diazafluorene functional group: A new building-block for organometallic molecular assemblies

The synthesis of the new chelating ruthenium(II) allenylidene complex [ClRu(dppe)2CCC11H6N2][OTf] (dppe = 1,2-bis(diphenylphosphino)ethane) along with its further coordination to ruthenium and rhenium centres are reported. This work shows that this complex is an attractive molecular clip for the access to original redox-active multi-component supramolecular assemblies.