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Excellent Selectivity for Actinides with a Tetradentate 2,9-Diamide-1,10-Phenanthroline Ligand in Highly Acidic Solution: A Hard-Soft Donor Combined Strategy
Xiao CL(肖成梁); Wang CZ(王聪芝); Yuan LY(袁立永); Xiao, CL; Wang, CZ; Yuan, LY; Li, B; He, H; Wang, S; Zhao, YL; Chai, ZF; Shi, WQ; Zhao YL(赵宇亮); Chai ZF(柴之芳); Shi WQ(石伟群)
2014
发表期刊INORGANIC CHEMISTRY
卷号53期号:3页码:1712-1720
摘要In this work, we reported a phenanthroline-based tetradentate ligand with hard-soft donors combined in the same molecule, N,N'-diethyl-N,N'-ditolyl-2,9-diamide-1,10-phenanthroline (Et-Tol-DAPhen), for the group separation of actinides over lanthanides. The synthesis and solvent extraction as well as complexation behaviors of the ligand with actinides and lanthanides are studied experimentally and theoretically. The ligand exhibits excellent extraction ability and high selectivity toward hexavalent, tetravalent, and trivalent actinides over lanthanides in highly acidic solution. The chemical stoichiometry of Th(IV) and U(VI) complexes with Et-Tol-DAPhen is determined to be 1:1 using X-ray crystallography. The stability constants of some typical actinide and lanthanide complexes of Et-Tol-DAPhen are also determined in methanol by UV-vis spectrometry. Density functional theory (DFT) calculations reveal that the An-N bonds of the Et-Tol-DAPhen complexes have more covalent characters than the corresponding Eu-N bonds, which may in turn lead to the selectivity of Et-Tol-DAPhen toward actinides. This ligand possesses merits of both alkylamide and 219-bis-(5,6-dialkyl-1,2,4-triazin-3-yl)-1,10-phenanthroline (R-BTPhen) extractants for efficient actinide extraction and the selectivity toward minor actinides over lanthanides and hence renders huge potential opportunities in high-level liquid waste (HLLW) partitioning.
学科领域Chemistry
DOI10.1021/ic402784c
收录类别SCI
WOS记录号WOS:000330812700053
引用统计
被引频次:63[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225033
专题院士
多学科研究中心
推荐引用方式
GB/T 7714
Xiao CL,Wang CZ,Yuan LY,et al. Excellent Selectivity for Actinides with a Tetradentate 2,9-Diamide-1,10-Phenanthroline Ligand in Highly Acidic Solution: A Hard-Soft Donor Combined Strategy[J]. INORGANIC CHEMISTRY,2014,53(3):1712-1720.
APA 肖成梁.,王聪芝.,袁立永.,Xiao, CL.,Wang, CZ.,...&石伟群.(2014).Excellent Selectivity for Actinides with a Tetradentate 2,9-Diamide-1,10-Phenanthroline Ligand in Highly Acidic Solution: A Hard-Soft Donor Combined Strategy.INORGANIC CHEMISTRY,53(3),1712-1720.
MLA 肖成梁,et al."Excellent Selectivity for Actinides with a Tetradentate 2,9-Diamide-1,10-Phenanthroline Ligand in Highly Acidic Solution: A Hard-Soft Donor Combined Strategy".INORGANIC CHEMISTRY 53.3(2014):1712-1720.
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