Comporternent de quelques di-, tri- et tétrapeptides vis-à-vis du cuivre(II). Étude en potentiométrie (électrode de cuivre) et en spectrométrie infrarouge

1991 
Abstract The behaviour of some di-, tri- and tetrapeptides in the presence of cupric ions was studied by (i) measurement of the variation of the potential using a copper electrode [during the complex formation in alkaline medium by addition of a copper(II) solution) and (ii) by comparison of infrared spectra of these peptides and their copper(II) complexes. The influence of various ligands was specified. The terminal amine and carboxylic groups, the anionic form of the tautomer of one of the amide groups, and eventualy, a hydroxyl or thiol group are concerned with chelation.
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