Infrared and NMR studies on rhenium(VII) complexes with CMPO and TBP

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Solvent Extraction and Ion Exchange; (United States)

DOI:https://doi.org/10.1080/07366299408918249· OSTI ID:6766583

Takeuchi, Mitsuo; Tanaka, Satoru; Yamawaki, Michio ^[1]

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1. Univ. of Tokyo, Ibaraki (Japan)

The infrared and NMR studies have been carried out on Re(VII) (a stand-in for Tc(VII)) complexes with n-octyl(phenyl)-N,N-diisobutyl-carbamoylmethylphosphine oxide (CMPO) and tributyl phosphate (TBP). In the IR study, changes in the absorption bands of the carbonyl and phosphoryl stretching regions were monitored when Re was extracted. The phosphoryl group was also investigated by using a phosphorus NMR. The spectra obtained in the mixed CMPO-TBP system were compared with those obtained in the CMPO or TBP system in order to discuss their bond-structures. It was found that CMPO showed semi-bidentate and bidentate bonding and that TBP could extract HReO[sub 4] in the mixed CMPO-TBP system. The IR and NMR results showed evidence of enhancement in the Re (Tc) extraction in the mixed CMPO-TBP system. 22 refs., 5 figs., 2 tabs.

• OSTI ID: 6766583
• Journal Information: Solvent Extraction and Ion Exchange; (United States), Journal Name: Solvent Extraction and Ion Exchange; (United States) Vol. 12:5; ISSN 0736-6299; ISSN SEIEDB
• Country of Publication: United States
• Language: English

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BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BUTYL PHOSPHATES
CHEMICAL BONDS
CMPO
COMPILED DATA
COMPLEXES
DATA
ESTERS
EXTRACTION
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INFORMATION
INFRARED SPECTRA
INORGANIC ACIDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC RESONANCE
MATERIALS
NITRIC ACID
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHINE OXIDES
PHOSPHINES
PHOSPHORIC ACID ESTERS
PHOSPHORUS COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
RESONANCE
RHENIUM COMPLEXES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTRA
TBP
TECHNETIUM 99
TECHNETIUM COMPLEXES
TECHNETIUM ISOTOPES
TRANSITION ELEMENT COMPLEXES
WASTES
YEARS LIVING RADIOI