NMR and IR spectrometric studies of monoamide complexes with plutonium(IV) and lanthanide(III) nitrates

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Solvent Extraction and Ion Exchange

DOI:https://doi.org/10.1080/07366299508918303· OSTI ID:102855

Berthon, C ^[1]; Chachaty, C ^[2]

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1. Centre d`Etudes Nucleaires de Fontenay-aux-Roses (France)
2. Centre d`Etudes Nucleaires de Saclay, Gif-sur-Yvette (France)

Monoamide (E) extractants are potential candidates to replace the tri-n-butyl phosphate (TBP) used in the reprocessing of nuclear fuels. In the present study we essentially used NMR ({sup 13}C and {sup 1}H) spectroscopy to identify the kinds of structural parameters conditioning the selectivity and efficiency of monoamide extractants. Information on nitrate groups bonded to the metallic ions and to the carbonyl moiety of monoamides was obtained by IR spectroscopy. The monoamides complexed with lanthanide(III) and plutonium(IV) nitrates were studied in benzene solution. Before obtaining conformational information from {sup 13}C relaxation times about the complexes, we first had to know the stoichiometries, to assign NMR spectra to the monoamides, and to check the fast exchange conditions. 59 refs., 9 figs., 9 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 102855
• Journal Information: Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 5 Vol. 13; ISSN 0736-6299; ISSN SEIEDB
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
40 CHEMISTRY
CARBON
COMPLEXES
COUPLING CONSTANTS
INFRARED SPECTROMETERS
LIGANDS
MOLECULAR STRUCTURE
NUCLEAR FUELS
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
PLUTONIUM NITRATES
RARE EARTHS
REPROCESSING
SOLVENT EXTRACTION
SPECTROSCOPY
STOICHIOMETRY