Solvation-Anionic Exchange Mechanism of Solvent Extraction: Enhanced U(VI) Uptake by Tetradentate Phenanthroline LigandsClick to copy article linkArticle link copied!
- Svetlana V. GutorovaSvetlana V. GutorovaDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Svetlana V. Gutorova
- Petr I. MatveevPetr I. MatveevDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Petr I. Matveev
- Pavel S. LemportPavel S. LemportDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Pavel S. Lemport
- Daniil A. NovichkovDaniil A. NovichkovDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Daniil A. Novichkov
- Igor P. GloriozovIgor P. GloriozovDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Igor P. Gloriozov
- Nane A. AvagyanNane A. AvagyanDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Nane A. Avagyan
- Alexey O. GudovannyyAlexey O. GudovannyyDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Alexey O. Gudovannyy
- Yulia V. NelyubinaYulia V. NelyubinaA. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Street, 28, Moscow 119991, RussiaMore by Yulia V. Nelyubina
- Vitaly A. RoznyatovskyVitaly A. RoznyatovskyDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Vitaly A. Roznyatovsky
- Vladimir G. PetrovVladimir G. PetrovDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Vladimir G. Petrov
- Konstantin A. LyssenkoKonstantin A. LyssenkoDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaNational Research University Higher School of Economics, Myasnitskaya Street, 20, Moscow 101000, RussiaMore by Konstantin A. Lyssenko
- Yuri A. UstynyukYuri A. UstynyukDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Yuri A. Ustynyuk
- Stepan N. KalmykovStepan N. KalmykovDepartment of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Stepan N. Kalmykov
- Valentine G. Nenajdenko*Valentine G. Nenajdenko*Email: [email protected]Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 Bld. 3, Moscow 119991, RussiaMore by Valentine G. Nenajdenko
Abstract

Phenanthroline diamides (L) demonstrated a unique ability to extract uranium from nitric acid solutions into a polar organic solvent forming complexes of 1:2 stoichiometry as tight ion pairs {[UO2LNO3]+[UO2(NO3)3]−} by a novel extraction mechanism, which is a combination of two already well-known mechanisms: solvation and ion-pair anion exchange. A UV–vis study was used to confirm the formation of such complexes directly in the organic phase. Moreover, chemical synthesis and single crystal growth were performed to confirm unambiguously the structure of the complexes in the solid state.
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