Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5223195 | Tetrahedron | 2009 | 7 Pages |
Abstract
New upper-rim polyphosphorylated calix[4]arenes were designed for decorporation of uranium in case of nuclear contamination. A ligand system containing four preorganized 1-hydroxymethylene-1,1-bisphosphonic acid moieties anchored onto a calix[4]arene platform has been developed. Three calix[4]arene-bisphosphonates were efficiently prepared in multi-step syntheses with a variable carbon chain length between the bisphosphonate and the calix[4]arene. Affinity constants towards uranyl ion were determined and compared with those of bis(HEDP) and tris(HEDP) phosphonates, known as efficient ligands for uranyl.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Evelyne Migianu-Griffoni, Cyrille Mbemba, Ramon Burgada, Delphine Lecerclé, Frédéric Taran, Marc Lecouvey,