Journal
TETRAHEDRON LETTERS
Volume 52, Issue 31, Pages 3973-3977Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.05.075
Keywords
CAMS; Dipodal ligands; Binol; Chelates; Actinides; Uranium
Categories
Funding
- Commissariat a l'Energie Atomique (CEA)
- Centre National pour la Recherche Scientifique (CNRS)
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The synthesis of phosphonate, sulfocatecholamide (CAMS) and hydroxypyridinone (HOPO) binaphtyl ligands is presented. Their binding abilities for uranyl cation were determined by UV spectrophotometry in aqueous media versus pH. These titrations showed that the efficiency of these chelating agents depends on the nature of the chelating group. Each ligand shows a more or less pronounced affinity towards uranium. While the bisphosphonate compound did not show any affinity towards the uranyl ion, the BINHOPO derivative exhibits significant affinity at acidic and neutral pH while the BINCAMS is more efficient at basic pH. (C) 2011 Elsevier Ltd. All rights reserved.
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