Room temperature columnar mesomorphism and high quantum yield phosphorescence in ionic ruthenium(ii) 2,2′-bipyridine-based complexes

Abstract

The induction of columnar mesomorphism in ionic heteroleptic octahedral tris-2,2′-bipyridine Ru(II) complexes, through a modulation in the ligand structure, produces a large effect on the phosphorescence quantum efficiency (Φ = 0.14) demonstrating that the synthesis of a liquid crystalline compound containing a hexacoordinated Ru(II) chromophore is a helpful strategy in the design of room temperature multifunctional soft materials, very appealing for light-emitting electrochemical cells or solid-state photovoltaic cells applications.