S-Shaped Double Helicene Diimides: Synthesis, Self-Assembly, and Mechanofluorochromism
Guanghui Zhang, Jingyun Tan, Long Zhou, Chao Liu, Jun Liu, Yingping Zou, Akimitsu Narita, Yunbin Hu
Abstract
Herein we present a synthesis of an S-shaped double helicene with fused imide moieties, achieving a contorted aromatic diimide (DHDI) with good fluorescence properties in both solution and the solid state. DHDI demonstrates distinct mechanofluorochromism from yellow to green emission under grinding of its crystalline powder.
Topics & Concepts
HeliceneDiimideChemistryImideFluorescenceSolid-stateGrindingStereochemistryPolymer chemistryPhotochemistryPeryleneOrganic chemistryMoleculeMaterials sciencePhysical chemistryQuantum mechanicsPhysicsComposite materialLuminescence and Fluorescent MaterialsSynthesis and Properties of Aromatic CompoundsSupramolecular Self-Assembly in Materials