Structural modification on tetraphenylpyrazine: from polarity enhanced emission to polarity quenching emission and its intramolecular charge transfer mechanism
Haozhong Wu, Lili Du, Juanjuan Luo, Zhiming Wang, David Lee Phillips, Anjun Qin, Ben Zhong Tang
Abstract
Both molecular conformations and hole–electron distribution impacted by the solvent polarity, can cause an enhanced or reduced emission of TPP structures, which provides a general intramolecular charge transfer rule and guidelines for PEE.
Topics & Concepts
Intramolecular forcePolarity (international relations)Solvent polarityMaterials scienceQuenching (fluorescence)Charge (physics)Chemical physicsElectron transferPhotochemistryMechanism (biology)Aggregation-induced emissionSolventElectronFluorescenceChemistryStereochemistryOrganic chemistryOpticsPhysicsCellBiochemistryQuantum mechanicsLuminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes ResearchPhotochemistry and Electron Transfer Studies