Relationship between complex formation by 99Tc(IV) and the chemical structure of aliphatic carboxylic acid ligands

Chemical reactions of 99TcBr 6 2− and different substituted and unsubstituted aliphatic carboxylic acids have been studied using spectrophotometric, electrophoretic, and chromatographic methods. Unsubstituted di- and tricarboxylic acids were unable to stabilize Tc(IV) against hydrolysis in these rea...

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Bibliographic Details
Published in:The International journal of applied radiation and isotopes 1982-03, Vol.33 (3), p.189-192
Main Authors: Grossmann, B., Muenze, R.
Format: Article
Language:English
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Summary:Chemical reactions of 99TcBr 6 2− and different substituted and unsubstituted aliphatic carboxylic acids have been studied using spectrophotometric, electrophoretic, and chromatographic methods. Unsubstituted di- and tricarboxylic acids were unable to stabilize Tc(IV) against hydrolysis in these reactions. In contrast the hydroxycarboxylic acids were able to replace the bromine ligands of the Tc(IV) complex ion resulting in polymeric anionic complex ions and low molecular weight hydroxycarboxylato technetates(IV), even with a monohydroxy-monocarboxylic acid as ligand.
ISSN:0020-708X
DOI:10.1016/0020-708X(82)90110-7