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Complexation of thorium(IV) with desmethyldesferrithiocin
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L. Rao
Published/Copyright:
September 25, 2009
The complexation of Th(IV) with desmethyldesferrithiocin (H2DMDFT), a derivative of the siderophore desferrithiocin (H2DFT), was studied by potentiometry, spectrophotometry and NMR. Three protonation constants of the ligand were determined by potentiometric titrations and 1H-NMR and assigned to the phenolate group, the nitrogen at the hydroxypyridine ring, and the carboxylate group. The formation constant of the 1:2 complex, Th(DMDFT)2, was determined by absorption spectrophotometry with oxalate as a competing ligand. A tridentate complex with Th(IV) involving the phenolate oxygen, the thiazoline nitrogen and the carboxylate group of H2DMDFT was proposed.
Published Online: 2009-9-25
Published in Print: 2000-12-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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- On-line gas-phase separation of short-lived bromine nuclides from precursor selenium
- Simulation of zeolite fixed bed columns used for treatment of liquid radioactive wastes
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