SUBSTITUTED POLYETHYLENEGLYCOLS IN EXTRACTION OF FISSION-PRODUCTS ANDACTINIDES .2. EXTRACTION OF EU AND AM BY PODANDS CONTAINING PHOSPHORYLS

Authors
SMIRNOV IV EFREMOVA TI SHADRIN AY BAULIN VE TSVETKOV EN
Citation
Iv. Smirnov et al., SUBSTITUTED POLYETHYLENEGLYCOLS IN EXTRACTION OF FISSION-PRODUCTS ANDACTINIDES .2. EXTRACTION OF EU AND AM BY PODANDS CONTAINING PHOSPHORYLS, Radiochemistry, 35(1), 1993, pp. 39-43
Citations number
9
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
35
Issue
1
Year of publication
1993
Pages
39 - 43
Database
ISI
SICI code
1066-3622(1993)35:1<39:SPIEOF>2.0.ZU;2-R
Abstract
Extraction of Eu and Am from HNO3 by podands containing phosphoryls in o-nitroethylbenzene is studied. The extraction ability (EA) of the po dands is determined by the length of the polyether chain and the struc ture of the terminal groups. The podand Ph2P(O)(CH2)2O(CH2)2P(O)Ph2 ha s EA similar to that of carbamoylphosphine oxides. Adding rigid o-phen yl groups to the polyether chain causes a sharp drop of he EA of the p odands. The EA of certain podands significantly increases if the dilue nt polarity is increased. Bidentate coordination to metals for these p odands and a possible anomalous aryl effect in these systems are propo sed.