Angewandte Chemie · 2019 · 29 citations · 28 references
Natural SciencesMaterials EngineeringMaterials ScienceCrystal StructureOptical MaterialsSpectroscopyCoordination ChemistryFluorescence SpectroscopyLuminescent MaterialsOrganic SemiconductorsPhotochromic MaterialsStimuli-responsive MaterialsCompressionFluorophore ChemistryFluorophore PhotophysicsLuminescent Coordination CompoundsOrganic FluorophoresStimuli-responsive BehaviorStimuli-responsive Luminescent MaterialsStructural Deformation
Abstract We herein report a new coordination network that deforms in a smooth and reversible manner under either thermal or pressure stimulation. Concomitantly, the organic fluorophores coordinatively bound to the channel in a face‐to‐face arrangement respond to this structural deformation by finely adapting their conformation and arrangement. As a result, the material exhibits a remarkable dual‐stimuli‐responsive luminescence shift across almost the entire visible region: The emission color of the crystal gradually changes from cyan to green upon heating and then to red upon pressure compression. Furthermore, each stage exhibits a linear dependence of both the emission maximum and intensity on the stimulus and is fully reversible.
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