EXAFS analyses of technetium(I) carbonyl complexes - stability studies in solutions

EXAFS analyses were successfully used to determine the structure of Re and Tc carbonyl thioether complexes in solid and liquid samples. In connection with chromatographic and mass spectrometric methods the behaviour of Tc car bonyl dithioether complexes in aqueous solution was studied. It was found t hat complexes containing a bidentate thioether ligand are able to react wit h water by exchange of the chloride ion, which results in the formation of a cationic complex. As expected, the exchange proceeds faster at the n.c.a. level because of concentration differences.