Eu(III) Tetrahedron Cage as a Luminescent Chemosensor for Rapidly Reversible and Turn-On Detection of Volatile Amine/NH<sub>3</sub>
Yuan Yao, Yanyan Zhou, Tianyu Zhu, Ting Gao, Hongfeng Li, Peng‐Fei Yan
Abstract
in a spin-coated film. Through the comprehensive spectral characteristic and density functional theory calculation, an intermolecular weak nucleophilic interaction is proposed for this response mechanism. Combining this weak interactions with the permeability of the cage, the film presents subsecond to second timescales rapid response; combining the fitting electrophilic capability of the β-diketonate units to amine nitrogen with the tunable intramolecular charge-transfer feature, the cage shows excellent selectivity and turn-on emissive response. This work provides a new clue to develop the lanthanide complexes as luminescence probes for VCs.
Topics & Concepts
Intramolecular forceLanthanideLuminescenceMaterials scienceFluorescenceCageSelectivityTurn (biochemistry)Amine gas treatingRational designPhotochemistryIntermolecular forceDensity functional theoryChemical physicsNanotechnologyOptoelectronicsChemistryComputational chemistryIonMoleculeStereochemistryOrganic chemistryPhysicsBiochemistryMathematicsCombinatoricsQuantum mechanicsCatalysisLuminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionSupramolecular Chemistry and Complexes