Emergence of Thorium-Based Polyoxo Clusters as a Platform for Selective X-ray Dosimetry
Huangjie Lu, Miaomiao Xu, Zhaofa Zheng, Qiao Liu, Junfeng Qian, Zhi‐Hui Zhang, Ming‐Yang He, Yuan Qian, Jian‐Qiang Wang, Jian Lin
Abstract
A brand-new application of thorium-bearing clusters in the field of ionizing radiation detection is exemplified by two novel hexanuclear thorium clusters, Th-bppCOO-1 and Th-bppCOO-2, which incorporate carboxylate-functionalized 2,6-di(pyrazol-1-yl)pyridine ligands. Notably, Th-bppCOO-1 is composed of an unprecedented [Th6(OH)4O4(H2O)5]12+ secondary building unit, the Th6 core of which is decorated by five H2O molecules. Furthermore, selective photoluminescence quenching responses of Th-bppCOO-1 and Th-bppCOO-2 toward X-ray over UV radiation have been demonstrated for the first time.
Topics & Concepts
ChemistryThoriumPyridineIonizing radiationX-rayMoleculePhotoluminescenceCarboxylateQuenching (fluorescence)UraniumRadiochemistryCrystallographyStereochemistryIrradiationFluorescenceMedicinal chemistryOrganic chemistryOptoelectronicsNuclear physicsOpticsPhysicsPolyoxometalates: Synthesis and ApplicationsLanthanide and Transition Metal ComplexesMetal-Organic Frameworks: Synthesis and Applications