Tunable Color of Aggregation‐Induced Emission Enhancement in a Family of Hydrogen‐Bonded Azines and Schiff Bases

作者: Samuel Guieu , Francisco Cardona , João Rocha , Artur M. S. Silva

DOI: 10.1002/CHEM.201802581

关键词: LuminescenceChemistryCrystal structureFluorescenceElectronIntramolecular forceHydrogenSchiff basePhotochemistryPolar effect

摘要: A simple synthesis strategy afforded a family of hydrogen-bonded azines and Schiff-bases. Although in dilute solution these dyes are faint light emitters, all exhibit bright luminescence upon aggregation. Changing the peripheral substituents from electron donating to withdrawing allows emission fine-tuning range bluish-green orange-red. The crystal structures materials reveal that restriction intramolecular rotations is main mechanism for aggregation-induced enhancement properties.

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