| 001 | 46729 | ||
| 005 | 20200423204212.0 | ||
| 024 | 7 | _ | |a 10.1039/b006745h |2 DOI |
| 024 | 7 | _ | |a WOS:000167327300026 |2 WOS |
| 024 | 7 | _ | |a 2128/2355 |2 Handle |
| 024 | 7 | _ | |a 2128/2870 |2 Handle |
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| 037 | _ | _ | |a PreJuSER-46729 |
| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 540 |
| 084 | _ | _ | |2 WoS |a Chemistry, Multidisciplinary |
| 100 | 1 | _ | |a Ionova, G. |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Mechanism of trivalent actinide/lanthanide separation using synergistic mixtures of di (chlorophenyl) dithiophosphinic acid and neutral o-bearing co-extractants |
| 260 | _ | _ | |a London |b RSC |c 2001 |
| 300 | _ | _ | |a 491 - 501 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |a New Journal of Chemistry |x 1144-0546 |0 4599 |v 25 |
| 500 | _ | _ | |a Record converted from VDB: 12.11.2012 |
| 520 | _ | _ | |a The mechanism of synergistic selective extraction of Am(III) over Eu(III) from aqueous nitric acid solutions using di(chlorophenyl)dithiophosphinic acid [(Cl Phi)(2)PSSH] and neutral O-bearing organophosphorus co-extractants (B) has been investigated. (Cl Phi)(2)PSSH forms weaker complexes with Am(III) than R2PSSH (where R = alkyl group). However, the Am(III)/(Cl Phi)(2)PSSH complexes are stronger than the corresponding Eu(III)/(Cl Phi)(2)PSSH complexes, although the difference is not as large as in the case of the corresponding complexes formed with R2PSSH. The donor properties of co-extractants are also discussed. Chemical shifts in the P-31 NMR spectra of the organophosphorus co-extractants correlate qualitatively with the extractability of Am(III) and Eu(III) in (Cl Phi)(2)PSSH + B synergistic mixtures. The synergistic effect determines the selectivity not only qualitatively but also quantitatively. The high selectivity observed using tri-2-ethylhexyl phosphate (T2EHP) is caused by a synergistic bonding effect for the Am(III) complex and an antagonistic effect for Eu(III).A donor-acceptor mechanism is shown to promote Am(III) extraction for almost all B co-extractants. A contribution of entropy terms for extracted Eu(III) extraction is assumed to be significant. Interatomic distances REu-S in the Eu(III) complexes are calculated.The softness of S-bearing extractants XYPSSH (with X and Y = R, RO or ClC6H4) is discussed from the point of view of the effective charge carried by the S atoms. The hardness of Eu(III) and Am(III) is evaluated. |
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| 700 | 1 | _ | |a Ionov, S. |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Rabbe, C. |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Madic, C. |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Guillaumont, R. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Modolo, G. |0 P:(DE-Juel1)130383 |b 5 |u FZJ |
| 700 | 1 | _ | |a Krupa, J. C. |0 P:(DE-HGF)0 |b 6 |
| 773 | _ | _ | |a 10.1039/b006745h |g Vol. 25, p. 491 - 501 |p 491 - 501 |q 25<491 - 501 |0 PERI:(DE-600)1472933-7 |t New journal of chemistry |v 25 |y 2001 |x 1144-0546 |n 3 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/46729/files/785.pdf |y OpenAccess |
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