Theoretical and Experimental Structural Studies of the Extraction of Actinides and Lanthanides by Tridentate Nitrogen Ligands Containing 1,2,4-triazines or 1,2,4-triazoles

SYNTHESIS AND STRUCTURE ELUCIDATION OF 1,2,4-TRIAZINO [4,3-b] 1,2,4-TRIAZINES, 1,2,4-TRIAZINO [3,4-C] 1,2,4-TRIAZINES AND 1,2,4-TRIAZINO [4,3-dl l,2,4-TRIAZINES

Gamma radiolytic stability of CyMe4BTBP and the effect of nitric acid

Within international research in partitioning and transmutation (P&T), the separation of trivalent actinides (An(III)) from the chemical similar trivalent lanthanides (Ln(III)) is a main task that was comprehensively studied within the last two decades [1–3]. The investigated solvent extraction processes often follow the plutonium uranium reduction extraction (PUREX) process, in which uranium a...

Ring Cleavage of Some Bicylic Compounds Derived from 1,2,4-Triazine

Ring cleavage occurred when 1,2,4-triazino-1,2,4-triazines (3), (4) and (5) were treated with concentrated hydrochloric acid to yield N-substituted triazines (7) and (8). These confirm the given configuration assigned to the isomeric triazinotriazines. 6-Methyl-2-phenyl-7H-oxazolo [3,2-b][1,2,4]-triazin-7-one (9) underwent ring cleavage on treatment with sodium alkoxide to afford 3-alkoxy-1...

Complexation of lanthanides, actinides and transition metal cations with a 6-(1,2,4-triazin-3-yl)-2,2':6',2''-terpyridine ligand: implications for actinide(III)/lanthanide(III) partitioning.

The quadridentate N-heterocyclic ligand 6-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-1,2,4-benzotriazin-3-yl)-2,2' : 6',2''-terpyridine (CyMe(4)-hemi-BTBP) has been synthesized and its interactions with Am(III), U(VI), Ln(III) and some transition metal cations have been evaluated by X-ray crystallographic analysis, Am(III)/Eu(III) solvent extraction experiments, UV absorption spectrophotometry, NM...

Hydrophilic sulfonated bis-1,2,4-triazine ligands are highly effective reagents for separating actinides(iii) from lanthanides(iii) via selective formation of aqueous actinide complexes† †Electronic supplementary information (ESI) available: Procedures and characterization data for all compounds. Tables and graphs of solvent extraction data. See DOI: 10.1039/c5sc01328c Click here for additional data file.