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Regulating the Porosity of Uranyl Phosphonate Frameworks with Quaternary Ammonium: Structure, Characterization, and Fluorescent Temperature Sensors.
Ji, Jinyan; Qi, Chao; Zhao, Hongxia; Yan, Xuewu; Chai, Zhifang; Wang, Shuao; Zheng, Tao.
Afiliação
  • Ji J; Yangtze River Delta Research Institute, Northwestern Polytechnical University, Suzhou215400, People's Republic of China.
  • Qi C; School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an710072, People's Republic of China.
  • Zhao H; School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China.
  • Yan X; Yangtze River Delta Research Institute, Northwestern Polytechnical University, Suzhou215400, People's Republic of China.
  • Chai Z; School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an710072, People's Republic of China.
  • Wang S; School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, People's Republic of China.
  • Zheng T; Yangtze River Delta Research Institute, Northwestern Polytechnical University, Suzhou215400, People's Republic of China.
Inorg Chem ; 61(42): 16794-16804, 2022 Oct 24.
Article em En | MEDLINE | ID: mdl-36214515
ABSTRACT
Regulating the porosity of metal phosphonate frameworks is still challenging, even though this is not an issue for carboxylate-based metal-organic frameworks (MOFs). Quaternary ammonium cations are common template reagents widely used for structure control. However, it is not successful for uranyl phosphonate frameworks (UPFs) because the large volume sizes of templates make it challenging to enter the channels constructed by phosphonate ligands with small pore sizes and low dimensions. In this work, three new porous three-dimensional UPFs were synthesized using the phosphonate ligand and template reagents with the same geometry, namely, (TEA)2(UO2)3(TppmH4)2·2H2O (UPF-106), (TPA)2(UO2)3(TppmH4)2 (UPF-107), and (TBA)2(UO2)5(TppmH2)2(H2O)2·4H2O (UPF-108). The porosity of the UPFs in this work showed a positive relation with the sizes of the template ammonium cations. Thermogravimetric analysis and infrared and ultraviolet spectroscopy were performed. The variable-temperature fluorescence spectra of the three compounds showed that the fluorescence intensity has an excellent relation to temperature with a potential application as fluorescence temperature sensors.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article