title: N,N'-Dialkyl-N,N'-diaryl-1,10-phenanthroline-2,9-dicarboxamides as donor ligands for separation of rare earth elements with a high and unusual selectivity. DFT computational and experimental studies.
abstract: N,N'-Dialkyl-N,N'-diaryl-1,10-phenanthroline-2,9-dicarboxamides (IV) were predicted (DFT simulation) and then were proved experimentally to be efficient donor ligands with high and unusual selectivity for the extraction separation of lanthanides. Distribution coefficients D of lanthanide cations in two-phase aqueous solution-polar organic solvent decrease with increasing Ln(3+) atomic number. The selectivity factors SFLn1/Ln2 for adjacent lanthanide ions were found to be about 3.
authors.affiliation: Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia. ustynyuk@nmr.chem.msu.ru.
authors.forename: Yu A
authors.initials: YA
authors.lastname: Ustynyuk
authors.forename: N E
authors.initials: NE
authors.lastname: Borisova
authors.forename: V A
authors.initials: VA
authors.lastname: Babain
authors.forename: I P
authors.initials: IP
authors.lastname: Gloriozov
authors.forename: A Y
authors.initials: AY
authors.lastname: Manuilov
authors.forename: S N
authors.initials: SN
authors.lastname: Kalmykov
authors.forename: M Yu
authors.initials: MY
authors.lastname: Alyapyshev
authors.forename: L I
authors.initials: LI
authors.lastname: Tkachenko
authors.forename: E V
authors.initials: EV
authors.lastname: Kenf
authors.forename: N A
authors.initials: NA
authors.lastname: Ustynyuk