Chruscinska, Elzebieta and Garribba, Eugenio and Micera, Giovanni and Panzanelli, Angelo and Biagioli, Marco (1998) Co-ordination ability of Cu2+ ion toward the nucleobase-amino acid willardiine. Talanta, Vol. 47 (2), p. 343-348. ISSN 0039-9140. Article.
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The complex formation between CuII and DL-willardiine [1-(2-amino-2-carboxyethyl)uracil], an analog of phenylalanine containing the uracil residue, was investigated by potentiometric and spectral studies. The results indicate that the primary metal binding site of the ligand is the α-amino-carboxylate chelating set. The uracil moiety, however, can coordinate the metal ion in basic solution giving rise to intermolecular bridging.
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