title: Synthesis and Screening of Modified 6,6'-Bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydrobenzo[e][1,2,4]triazin-3-yl)-2,2'-bipyridine Ligands for Actinide and Lanthanide Separation in Nuclear Waste Treatment.
abstract: Effects of chloro and bromo substitution at the 4-position of the pyridine ring of 6,6'-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydrobenzo[e][1,2,4]triazin-3-yl)-2,2'-bipyridine (CyMe4-BTBP) have been studied with regard to the extraction of Am(III) from Eu(III) and Cm(III) from 0.1-3 M HNO3. Similarly to CyMe4-BTBP, a highly efficient (DAm> 10 at 3 M HNO3) and selective (SFAm/Eu> 100 at 3 M HNO3) extraction was observed for Cl-CyMe4-BTBP and Br-CyMe4-BTBP in 1-octanol but in the absence of a phase-transfer agent.
authors.affiliation: School of Chemistry, University of Reading , Whiteknights, Reading, Berkshire RG6 6AD, U.K.
authors.forename: Ashfaq
authors.initials: A
authors.lastname: Afsar
authors.affiliation: Department of Nuclear Chemistry, Czech Technical University in Prague , Břehová 7, 11519 Prague 1, Czech Republic.
authors.forename: Petr
authors.initials: P
authors.lastname: Distler
authors.affiliation: School of Chemistry, University of Reading , Whiteknights, Reading, Berkshire RG6 6AD, U.K.
authors.forename: Laurence M
authors.initials: LM
authors.lastname: Harwood
authors.affiliation: Department of Nuclear Chemistry, Czech Technical University in Prague , Břehová 7, 11519 Prague 1, Czech Republic.
authors.forename: Jan
authors.initials: J
authors.lastname: John
authors.affiliation: School of Chemistry, University of Reading , Whiteknights, Reading, Berkshire RG6 6AD, U.K.
authors.forename: James
authors.initials: J
authors.lastname: Westwood