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Theoretical studies on the synergistic extraction of am3+ and eu3+ with cmpo-hdehp and cmpo-heh[ehp] systems

文献类型:期刊论文

作者Huang, Pin-Wen1; Wang, Cong-Zhi2,3; Wu, Qun-Yan2,3; Lan, Jian-Hui2,3; Song, Gang4; Chai, Zhi-Fang2,3,5,6; Shi, Wei-Qun2,3
刊名Dalton transactions
出版日期2018-04-21
卷号47期号:15页码:5474-5482
ISSN号1477-9226
DOI10.1039/c8dt00134k
通讯作者Shi, wei-qun(shiwq@ihep.ac.cn)
英文摘要In recent years, there has been a trend to use synergistic systems of neutral and acidic extractants into a single-solvent formulation to achieve ln(3+)/an(3+) extraction and separation via simplified processing schemes. in this study, geometrical structures, bonding nature, and thermodynamic stabilities of a series of possible extraction complexes of am3+ and eu3+ with two neutral-acid synergistic systems (cmpo-hdehp and cmpo-heh[ehp]) were theoretically studied using scalar-relativistic density functional theory (dft). it is found that hydrogen bonds between neutral and acid ligands may greatly influence the eu3+/am3+ extraction and separation performance of the two synergistic systems. according to natural bond orbital (nbo) and energy decomposition analyses (eda), the phosphoryl oxygen atoms of hdehp or heh[ehp] have higher affinity for eu3+ and am3+ than those of the cmpo ligand. since weak but different extents of covalency exist in eu- and am-complexes, eu3+/am3+ separation via these two systems may be attributed to the different compositions of interactions between the metal ions and ligands. thermodynamic analysis shows that the neutral complexes ml(no3)(2) (m = eu and am; l = [cmpo-dehp](-) and [cmpo-eh[ehp]](-)) appear to be the most probable species in the complexation process.
WOS关键词SEPARATING TRIVALENT LANTHANIDES ; SOLVENT-EXTRACTION ; TRANSURANIC ELEMENTS ; COMPLEXATION THERMODYNAMICS ; CORRELATION-ENERGY ; COMBINING CMPO ; LIGANDS ; DENSITY ; ACTINIDES ; PSEUDOPOTENTIALS
WOS研究方向Chemistry
WOS类目Chemistry, Inorganic & Nuclear
语种英语
WOS记录号WOS:000430328100042
出版者ROYAL SOC CHEMISTRY
URI标识http://www.irgrid.ac.cn/handle/1471x/2177579
专题高能物理研究所
通讯作者Shi, Wei-Qun
作者单位1.Zhejiang Univ Water Resources & Elect Power, Hangzhou 310018, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China
4.Guangzhou Univ, Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Guangdong, Peoples R China
5.Soochow Univ, Sch Radiol & Interdisciplinary Sci RAD X, Suzhou 215123, Peoples R China
6.Soochow Univ, Collaborat Innovat Ctr Radiat Med Jiangsu Higher, Suzhou 215123, Peoples R China
推荐引用方式
GB/T 7714
Huang, Pin-Wen,Wang, Cong-Zhi,Wu, Qun-Yan,et al. Theoretical studies on the synergistic extraction of am3+ and eu3+ with cmpo-hdehp and cmpo-heh[ehp] systems[J]. Dalton transactions,2018,47(15):5474-5482.
APA Huang, Pin-Wen.,Wang, Cong-Zhi.,Wu, Qun-Yan.,Lan, Jian-Hui.,Song, Gang.,...&Shi, Wei-Qun.(2018).Theoretical studies on the synergistic extraction of am3+ and eu3+ with cmpo-hdehp and cmpo-heh[ehp] systems.Dalton transactions,47(15),5474-5482.
MLA Huang, Pin-Wen,et al."Theoretical studies on the synergistic extraction of am3+ and eu3+ with cmpo-hdehp and cmpo-heh[ehp] systems".Dalton transactions 47.15(2018):5474-5482.

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