Fluorescent molecular glass based on hexadehydrotribenzo[12]annulene
Yotaro Kasahara, Ichiro Hisaki, Tomoyuki Akutagawa, Takashi Takeda
Abstract
We prepared octylbenzoate-substituted [12]DBA (C8[12]DBA) as an organic molecular glass material. Even with a central large, planar π unit of [12]DBA, which is generally advantageous for the formation of a crystalline/liquid crystalline state, this compound formed a thermally stable glass state due to its small intermolecular π contact between [12]DBA units and twisted geometries around the terminal benzoate units. C8[12]DBA showed a unique dielectric anomaly and isolated fluorescence properties in the glass state.
Topics & Concepts
AnnuleneFluorescencePlanarMaterials scienceDielectricAnomaly (physics)ChemistryOptoelectronicsOrganic chemistryOpticsCondensed matter physicsPhysicsComputer scienceComputer graphics (images)Luminescence and Fluorescent MaterialsSynthesis and Properties of Aromatic CompoundsPhotochemistry and Electron Transfer Studies