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

authors	Guieu, S; Cardona, F; Rocha, J; Silva, AMS
nationality	International
journal	CHEMISTRY-A EUROPEAN JOURNAL
author keywords	aggregation induced emission; azines; crystals; fluorescence; Schiff base
keywords	LUMINESCENCE; DERIVATIVES; PROBE
abstract	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 electron withdrawing allows emission fine-tuning in a range from bluish-green to orange-red. The crystal structures of the materials reveal that the restriction of intramolecular rotations is the main mechanism for the aggregation-induced emission enhancement properties.
publisher	WILEY-V C H VERLAG GMBH
issn	0947-6539
year published	2018
volume	24
issue	65
beginning page	17262
ending page	17267
digital object identifier (doi)	10.1002/chem.201802581
web of science category	Chemistry, Multidisciplinary
subject category	Chemistry
unique article identifier	WOS:000451233400015