Coplanar binuclear group 4 post-metallocene complexes supported by chelating μ-(σ2-aryl) ligands: characterisation and olefin polymerisation catalysis

Rigid binuclear assemblies with M⋯M distances and syn binding sites that are amenable for cooperative reactivity have been structurally characterised; the Ti 2 catalysts are more active than anti and mono-Ti controls and produced higher- M w polymers.