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

doi:10.1021/acs.inorgchem.1c03182

Emergence of Thorium-Based Polyoxo Clusters as a Platform for Selective X-ray Dosimetry

Inorg Chem. 2021 Dec 20;60(24):18629-18633. doi: 10.1021/acs.inorgchem.1c03182. Epub 2021 Dec 1.

Authors

Huangjie Lu^{1

2}, Miaomiao Xu^{1

3}, Zhaofa Zheng^{1

2}, Qiao Liu⁴, Junfeng Qian³, Zhi-Hui Zhang³, Ming-Yang He³, Yuan Qian^{1

2}, Jian-Qiang Wang^{1

2}, Jian Lin⁵

Affiliations

¹ Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China.
² University of Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China.
³ Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China.
⁴ Department of Physics and Astronomy, Carleton College, 1 North College Street, Northfield, Minnesota 55057, United States.
⁵ School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.

PMID: 34851629
DOI: 10.1021/acs.inorgchem.1c03182

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.