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Influence of Electronic Modulation of Phenanthroline-Derived Ligands on Separation of Lanthanides and Actinides.
Li, Ming-Ming; Liu, Xiao-Juan; Yang, Qi; Liu, Yue-Kun; Nie, Jiang; Yang, Shu-Ming; Yang, Ya-Ya; Lou, Fu-Yan; Xiao, Song-Tao; Ouyang, Ying-Gen; Ye, Guo-An.
Afiliación
  • Li MM; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Liu XJ; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Yang Q; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Liu YK; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Nie J; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Yang SM; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Yang YY; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Lou FY; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Xiao ST; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Ouyang YG; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
  • Ye GA; Department of Radiochemistry, China Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China.
Molecules ; 27(6)2022 Mar 09.
Article en En | MEDLINE | ID: mdl-35335150
ABSTRACT
The solvent extraction, complexing ability, and basicity of tetradentate N-donor 2,9-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-1,2,4-benzotriazin-3-yl)-1,10-phenanthroline (CyMe4-BT- Phen) and its derivatives functionalized by Br, hydroxyphenyl, nitryl were discussed and compared. It was demonstrated that four BTPhen ligands are able to selectively extract Am(lll) over Eu(lll). It was notable that the distribution ratio of 5-nitryl-CyMe4-BTPhen for Eu(lll) was suppressed under 0.02, which was much lower compared to DEu(lll) = 1 by CyMe4-BTPhen. The analysis of the effect of the substituent on the affinity to lanthanides was conducted by UV/vis and fluorescence spectroscopic titration. The stability constants of various ligands with Eu(lll) were obtained by fitting titration curve. Additionally, the basicity of various ligands was determined to be 3.1 ± 0.1, 2.3 ± 0.2, 0.9 ± 0.2, 0.5 ± 0.1 by NMR in the media of CD3OD with the addition of DClO4. The basicity of ligands follows the order of L1 > L2 > L3 > L4, indicating the tendency of protonation decreases with the electron-withdrawing ability increase.
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: China
Texto completo
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PubMed Links
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: China