Isomerization-induced fluorescence enhancement of two new viologen derivatives: mechanism insight and DFT calculations
Xiuping Yin, Xinxing Li, Xuyi Li, Małgorzata Biczysko, Shourong Zhu, Jiaqiang Xu, Yue‐Ling Bai
Abstract
), indicating stronger fluorescence emission of the enol structure. The calculated results are in good agreement with the experimental results. Vio1·2Cl and Vio2·2Br are the first examples of isomerization-induced fluorescence enhancement of viologen derivatives, which shows strong solvatofluorochromism under UV light, making up for the disadvantage that it is easy for a viologen radical to fade in air, and providing a new strategy for designing and synthesizing viologen materials with strong fluorescence.
Topics & Concepts
ViologenIsomerizationMechanism (biology)PhotochemistryChemistryFluorescenceDensity functional theoryComputational chemistryOrganic chemistryCatalysisPhysicsQuantum mechanicsMolecular Sensors and Ion DetectionLuminescence and Fluorescent MaterialsPhotochromic and Fluorescence Chemistry