A Br-substituted phenanthroimidazole derivative with aggregation induced emission from intermolecular halogen–hydrogen interactions†
Abstract
A unique aggregation induced emission (AIE) active emitter based on a Br-substituted phenanthroimidazole derivative was reported. The yellowish green emission with high quantum yield and a large Stokes shift (∼150 nm) in the aggregated state is proposed to be obtained from weak interactions especially C–H⋯Br interactions.