Water-stable lanthanide–organic macrocycles from a 1,2,4-triazole-based chelate for enantiomeric excess detection and pesticide sensing
Kai Cheng, Qixia Bai, Shao‐Jun Hu, Xiaoqing Guo, Li‐Peng Zhou, Ting‐Zheng Xie, Qing‐Fu Sun
Abstract
Water-stable anionic Ln2L2-type (Ln = LaIII and EuIII) lanthanide-organic macrocycles have been constructed by deprotonation self-assembly of a bis-tridentate ligand consisting of two 2,6-bis-(1,2,4-triazole)-pyridine chelation arms bridged by a dibenzofuran chromophore, of which the luminescent Eu2L2 macrocycle can be used for enantiomeric excess (ee) detection toward pybox-type chiral ligands and selective colorimetric sensing of omethoate (OMA) in water.
Topics & Concepts
EnantiomerChelationTriazoleLanthanideChemistryLigand (biochemistry)Combinatorial chemistryPesticideIridiumStereochemistryInorganic chemistryOrganic chemistryIonReceptorCatalysisBiochemistryAgronomyBiologyLanthanide and Transition Metal ComplexesRadioactive element chemistry and processingMolecular Sensors and Ion Detection