Potentiometric and spectrophotometric results obtained for the Cu(II)-Aztreonam system give a clear indication of the chelating properties of this antibiotic toward the Cu2+ ion, coordinated already at pH congruent-to 2. Only one single complex of 1:1 stoichiometry is formed. Measurements of C-13 relaxation rates allow us to attribute a coordination scheme via the carboxylic and aminic groups.
Study of the Copper(II) -Aztreonam system by potentiometry and spectrophotometry
CRISPONI, GUIDO
;NURCHI, VALERIA MARINA;
1994-01-01
Abstract
Potentiometric and spectrophotometric results obtained for the Cu(II)-Aztreonam system give a clear indication of the chelating properties of this antibiotic toward the Cu2+ ion, coordinated already at pH congruent-to 2. Only one single complex of 1:1 stoichiometry is formed. Measurements of C-13 relaxation rates allow us to attribute a coordination scheme via the carboxylic and aminic groups.
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