Published 1984
| Version v1
Journal article
Complex formation of peroxouranyl (and uranyl) with polyaminocarboxylate ligands
Creators
- 1. Ecole Nationale Superieure de Chimie, 67 - Strasbourg (France)
Description
Complexation of the uranyl ion (UO22+) and of the peroxouranyl species (UO4) by some polyaminocarboxylate ligands has been investigated in solution (3M NaClO4) at 25 deg C. The logarithms of the cumulative formation constants of the UO22+ chelates formed are: UO2edta2- (15.65), UO2Hedta-(18.59), (UO2)2edta (20.24); UO2edda (16.02); UO2Hnta (12.19); UO2ida (9.63), UO2H2(ida)2 (23.80). The equilibrium UO22+ + H2O2 <--> UO4 + 2H+ has a stability of log K = -3.99. The peroxocomplexes formed are UO4Hedda- (14.81, expressed from UO22+ and H2O2) and UO4Hnta2- (8.50). Solution structures of the chelates are proposed. (author)
Additional details
Publishing Information
- Journal Title
- Polyhedron
- Journal Volume
- 3
- Journal Issue
- 4
- Series
- Polyhedron.
- Journal Page Range
- 469-474
- ISSN
- 0277-5387
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 15058256
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- ABSORPTION SPECTRA; AMINO ACIDS; AQUEOUS SOLUTIONS; CHELATES; CHEMICAL REACTION KINETICS; CHEMICAL REACTIONS; DISTRIBUTION FUNCTIONS; EDTA; EQUILIBRIUM; LIGANDS; MOLECULAR STRUCTURE; PEROXIDES; PH VALUE; SODIUM PERCHLORATES; URANYL COMPLEXES; URANYL COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPLEXES; ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; CARBOXYLIC ACIDS; CHELATING AGENTS; CHLORINE COMPOUNDS; COMPLEXES; DISPERSIONS; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; KINETICS; MIXTURES; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PERCHLORATES; REACTION KINETICS; SODIUM COMPOUNDS; SOLUTIONS; SPECTRA; URANIUM COMPLEXES; URANIUM COMPOUNDS