Solvent extraction of americium(III) and europium(III) with tridentate N,N-dialkyl-1,10-phenanthroline-2-amide-derived ligands: extraction, complexation and theoretical study
文献类型：期刊论文
| 作者 | Tan, Cunmin1,2,4; Cao, Shiwei2,4; Wang, Jieru4; Zhang, Xin1; Li, Sa1,2,4; Tian, Wei2,4 ; Guo, Hangxu2,4; Wang, Lei3; Qin, Zhi4
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| 刊名 | NEW JOURNAL OF CHEMISTRY
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| 出版日期 | 2016-12-01 |
| 卷号 | 40页码:10560-10568 |
| ISSN号 | 1144-0546 |
| DOI | 10.1039/c6nj02696f |
| 英文摘要 | The extraction and complexation behavior of soft hard combined N,N-dialkyl-1,10-phenanthroline-2-amide (PTA) ligands with Am(III) and Eu(III) in HNO3 solution was investigated. The effects of acidity of the aqueous solution, shaking time, concentration of the extractant and temperature on the distribution ratios were studied. The extraction ability for both Am(III) and Eu(III) was found to decrease with an increase in the length of the substituent alkyl chains, and the highest extractability and selectivity for Am(III) over Eu(III) were found for the diethyl-substituted ligand. The separation factor for Am(III) over Eu(III) reached around 7.6 at low acidity and high salinity. UV-vis titrations revealed that the dialkyl-substituted tridentate PTAs all predominantly formed 1:1 complexes with Eu(III), which agreed well with the results of slope analyses in the extraction experiments. The stability constants (K-EuL) as well as the protonation constants (K-H) were also determined by UV-vis titration. Computational chemistry gave a good explanation of the relationship between the alkalinity and the protonation energy of the proposed PTA ligands. Density functional theory (DFT) calculations on the optimized structures of Am(III) and Eu(III) complexes with C2-PTA showed that the selectivity may originate from differences in the degree of covalency of the bonds between the metal ions and the donor N atoms, which fits well with the experimental results. |
| WOS关键词 | SEPARATION ; ACTINIDE ; LANTHANIDES ; CHEMISTRY ; EU(III) ; AM(III) ; ENERGY ; PSEUDOPOTENTIALS ; DIGLYCOLAMIDES ; SELECTIVITY |
| 资助项目 | National Natural Science Foundation of China[11079006] ; CAS Strategic Priority Research Program[XDA03010402] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000390724600084 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; CAS Strategic Priority Research Program |
| 源URL | [http://119.78.100.186/handle/113462/44004]  |
| 专题 | 近代物理研究所_实验物理中心 |
| 通讯作者 | Qin, Zhi |
| 作者单位 | 1.Lanzhou Univ, Sch Nucl Sci & Technol, 222 Tianshuinan Rd, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci & Technol, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Sichuan Univ, Coll Chem, 24 South Sect 1,Yihuan Rd, Chengdu 610065, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Cunmin,Cao, Shiwei,Wang, Jieru,et al. Solvent extraction of americium(III) and europium(III) with tridentate N,N-dialkyl-1,10-phenanthroline-2-amide-derived ligands: extraction, complexation and theoretical study[J]. NEW JOURNAL OF CHEMISTRY,2016,40:10560-10568. |
| APA | Tan, Cunmin.,Cao, Shiwei.,Wang, Jieru.,Zhang, Xin.,Li, Sa.,...&Qin, Zhi.(2016).Solvent extraction of americium(III) and europium(III) with tridentate N,N-dialkyl-1,10-phenanthroline-2-amide-derived ligands: extraction, complexation and theoretical study.NEW JOURNAL OF CHEMISTRY,40,10560-10568. |
| MLA | Tan, Cunmin,et al."Solvent extraction of americium(III) and europium(III) with tridentate N,N-dialkyl-1,10-phenanthroline-2-amide-derived ligands: extraction, complexation and theoretical study".NEW JOURNAL OF CHEMISTRY 40(2016):10560-10568. |
入库方式： OAI收割
来源：近代物理研究所
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