Phosphorescent columnar hybrid materials containing polyionic inorganic nanoclusters

Abstract

The ternary polyionic inorganic compound Cs₂Mo₆Br₁₄ and 18-crown-6 ethers bearing two o-terphenyl units have been combined to design phosphorescent columnar liquid crystalline hybrid materials. The obtained host–guest complexes are very stable even at high temperatures. Depending on their surrounding atmosphere, these hybrids switch reversibly from a high-to-low luminescence state and show a very stable emission intensity up to 140 °C.