Published May 2002
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Uranium(VI) complexation by alpha-substituted carboxylic acids studied by EXAFS
Creators
- 1. Dept. of Chemistry, Inorganic Chemistry, The Royal Inst. of Tech., Stockholm (Sweden)
Description
A decrease in the U-Oeq distance to 2.36-2.37 A at pH values > 5 shows the formation of a chelate complex due to the deprotonation of the α-OH-group of the ligand. In the glycolate system in the pH range 5.5 to 11, the EXAFS data showed evidence of U-U interaction at 3.81 A indicating the formation of dimeric species. (orig.)
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Additional details
Publishing Information
- Imprint Title
- Forschungszentrum Rossendorf, Institute of Radiochemistry. Annual report 2001
- Imprint Pagination
- 79 p.
- Journal Page Range
- p. 4
- ISSN
- 1437-322X
- Report number
- FZR--343
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 33066593
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- AQUEOUS SOLUTIONS; BOND LENGTHS; CHEMICAL REACTION KINETICS; COMPLEXOMETRY; COORDINATION NUMBER; GLYCOLIC ACID; ISOBUTYRIC ACID; PH VALUE; URANYL COMPLEXES; X-RAY SPECTRA
- Descriptors DEC
- ACTINIDE COMPLEXES; CARBOXYLIC ACIDS; COMPLEXES; DIMENSIONS; DISPERSIONS; HOMOGENEOUS MIXTURES; HYDROXY ACIDS; KINETICS; LENGTH; MIXTURES; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; REACTION KINETICS; SOLUTIONS; SPECTRA; URANIUM COMPLEXES