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Theoretical insights into the separation of Am(III) over Eu(III) with PhenBHPPA
Wu H(吴晗); Wu QY(吴群燕); Wang CZ(王聪芝); Lan JH(蓝建慧); Chai ZF(柴之芳); Shi WQ(石伟群); Wu, H; Wu, QY; Wang, CZ; Lan, JH; Liu, ZR; Chai, ZF; Shi, WQ
2015
发表期刊DALTON TRANSACTIONS
卷号44期号:38页码:16737-16745
通讯作者石伟群
文章类型Article
摘要Due to the similar chemical properties of actinides An(III) and lanthanides Ln(III), their separation in spent nuclear fuel reprocessing is extremely challenging. A 1,10-phenanthroline dipicolinamide-based ligand (PhenBHPPA) has been identified to possess a selectivity for Am(III) over Eu(III) and could potentially be used for group actinide extraction. In this study, quasi-relativistic density functional theoretical calculations have been used to disclose the interaction mechanisms of Am(III) and Eu(III) complexes with PhenBHPPA. The electronic structures, bonding nature, QTAIM (Quantum Theory of Atoms in Molecules) analyses and thermodynamic behaviors of the Am(III) and Eu(III) complexes with PhenBHPPA have been explored in detail. According to the Wiberg bond indices (WBIs) and QTAIM analyses, interactions between the ligand and metal cations (Am(III) and Eu(III)) exhibit a weakly covalent character. Thermodynamic analyses show that the charged complexes [ML(NO3)(2)](+) appear to be the most stable species in the complexation processes. Moreover, it is more energetically favorable for PhenBHPPA to bind to Am(III) compared to Eu(III). Our study could render new insights into understanding the selectivity of the ligand towards minor actinides and the separation of An(III) from Ln(III) via liquid-liquid extraction.
学科领域Chemistry
DOI10.1039/c5dt02528a
收录类别SCI ; EI ; CA ; MEDLINE
WOS类目Chemistry, Inorganic & Nuclear
WOS记录号WOS:000361671000013
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被引频次:12[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/311005/228719
专题院士
多学科研究中心
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GB/T 7714
Wu H,Wu QY,Wang CZ,et al. Theoretical insights into the separation of Am(III) over Eu(III) with PhenBHPPA[J]. DALTON TRANSACTIONS,2015,44(38):16737-16745.
APA 吴晗.,吴群燕.,王聪芝.,蓝建慧.,柴之芳.,...&Shi, WQ.(2015).Theoretical insights into the separation of Am(III) over Eu(III) with PhenBHPPA.DALTON TRANSACTIONS,44(38),16737-16745.
MLA 吴晗,et al."Theoretical insights into the separation of Am(III) over Eu(III) with PhenBHPPA".DALTON TRANSACTIONS 44.38(2015):16737-16745.
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