Facile Synthesis of an Organic Solid State Near-Infrared-Emitterwith Large Stokes Shift viaExcited-State Intramolecular Proton Transfer

摘要

An organic solid-state near-infrared (NIR)-emitter (λem = 738 nm) exhibiting large Stokes shift (Δλ = 293 nm) through the excited-state intramolecular proton transfer phenomenon has been synthesized and characterized. The present discovery points to the possibility of achieving a new family of solid-state NIR emitters starting from simple aldehyde and amine precursors.