Flux Method Growth and Structural Analysis of Two Tetravalent Uranium Orthophosphate Single Crystals, Cs<sub>2</sub>U<sup>IV</sup>(PO<sub>4</sub>)<sub>2</sub> and Isostructural Cs<sub>2</sub>(U<sup>IV</sup><sub>0.75</sub>Ce<sup>IV</sup><sub>0.25</sub
Two novel uranium(IV) orthophosphate framework compounds were obtained by the high-temperature flux method in CsCl-CsF eutectic salt. Cs<sub>2</sub>U<sup>IV</sup>(PO<sub>4</sub>)<sub>2</sub> (<b>1</b>) and isostructural Cs<sub>2</sub>(U<sup>IV</sup><sub>0.75</sub>Ce<sup>IV</sup><sub>0.25</sub>)(PO<sub>4</sub>)<sub>2</sub> (<b>2</b>) are tetragonal structures bridged by (U/Ce)<sup>IV</sup>-O octacoordinated dodecahedra and PO<sub>4</sub> tetrahedra, with Cs<sup>+</sup> cations filling in the channels. The crystal structures exhibit good structural and thermal stability with a potential capacity to immobilize tetravalent radionuclides.
Authors
- Xiaochen Zhang (ORCID: https://orcid.org/0000-0001-8164-1018)
- Lanxin Li (ORCID: https://orcid.org/0000-0002-5607-272X)
- Yu Wang (ORCID: https://orcid.org/0000-0003-3526-9264)
- Lei Zhang (ORCID: https://orcid.org/0000-0002-0134-4142)
- Tao Bo (ORCID: https://orcid.org/0000-0002-0154-5454)
Institutions
- Ningbo University (CN)
- Chinese Academy of Sciences (CN)
- Jiangxi University of Technology (CN)
- University of Chinese Academy of Sciences (CN)
- Ningbo Institute of Industrial Technology (CN)
- Jiangxi University of Science and Technology (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2024-09-05
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c02468
- Citations
- 4
- Primary Topic
- Nuclear materials and radiation effects
- Type
- article
- Field-Weighted Citation Impact
- 0.47
Funders
- National Natural Science Foundation of China