A Novel Bicyclic Diamide with High Binding Affinity for Trivalent f‐Block Elements
- 3 January 2003
- journal article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 21 (1) , 29-39
- https://doi.org/10.1081/sei-120017546
Abstract
A new bicyclic diamide compound, 3,9‐diaza‐3,9‐dioctylbicyclo[4.4.0]decane‐2,10‐dione (1) has been prepared, and its affinity for Eu3+ and Am3+ has been explored using liquid–liquid extraction methods. Molecular mechanics calculations have shown that the two amide oxygen atoms in 1 should be ideally situated for binding to trivalent actinide or lanthanide ions and should form strong complexes. The data in this report support this hypothesis. As determined by liquid–liquid extraction, the affinity of 1 for Eu3+ is on the order of 107 times greater than previously investigated malonamides. The extraction behavior for Am3+ is similar to that of Eu3+.Keywords
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