Three new thorium-based MOFs based on 1,2,4,5-tetrakis(4-carboxyphenyl)benzene (H4TCPB) were obtained under a similar reaction system (metal salt, ligand, solvent, and acid are the same). Th(IV) forms the central unit of the MOFs in mononuclear and binuclear clusters, respectively. All the MOFs show blue ligand-based luminescence under an ultraviolet environment. This is the first time that multiple thorium-based MOFs with luminescence have been found with the same ligand.

中文翻译：

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1,2,4,5-四(4-羧基苯基)苯发光钍基金属有机骨架的合成

在相似的反应体系（金属盐、配体、溶剂和酸相同）下，获得了三种基于 1,2,4,5-四（4-羧基苯基）苯（H4TCPB）的新型钍基 MOF。Th( IV ) 分别形成单核和双核簇中 MOF 的中心单元。所有 MOF 在紫外环境下均显示出蓝色配体发光。这是首次发现具有相同配体的多个具有发光的钍基 MOF。