NEUTRAL URANIUM DIMER COMPLEXES AND SELECTIVE EXTRACTION PROPERTIES OF A NEW PARA-TERTIARY BUTYL 1,3-ACID-DIETHYL AMIDE SUBSTITUTED CALIX[4]ARENE LIGAND

Authors
KAN MJ NICHOLSON G HORN I WILLIAMS G BEER PD SCHMITT P HESEK D DREW MGB SHEEN P
Citation
Mj. Kan et al., NEUTRAL URANIUM DIMER COMPLEXES AND SELECTIVE EXTRACTION PROPERTIES OF A NEW PARA-TERTIARY BUTYL 1,3-ACID-DIETHYL AMIDE SUBSTITUTED CALIX[4]ARENE LIGAND, Nuclear energy, 37(5), 1998, pp. 325-329
Citations number
19
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Nuclear energy → ACNP
ISSN journal
01404067
Volume
37
Issue
5
Year of publication
1998
Pages
325 - 329
Database
ISI
SICI code
0140-4067(1998)37:5<325:NUDCAS>2.0.ZU;2-2
Abstract
The solvent extraction of uranium(VI) with a paratertiary butyl 1,3-ac id-diethyl amide substituted calix[4]arene ligand in dichloromethane h as been studied. UO2+2 was found to extract into the dichloromethane p hase with a metal:ligand ratio of 1. X-ray crystallographic analysis o f a single crystal indicated a dimeric species of 2 UO2+2:2 ligands. T he extraction mechanism is pH dependent due to the increased availabil ity of deprotonated hydroxyl groups with increase in pH.