title: Co-ordination ability of Cu(2+) ion toward the nucleobase-amino acid willardiine.
abstract: The complex formation between Cu(II) 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 alpha-amino-carboxylate chelating set. The uracil moiety, however, can coordinate the metal ion in basic solution giving rise to intermolecular bridging.
authors.affiliation: Institute of General Food Chemistry, Technical University of Lodz, Stefanowski Street 4/10, 90-924 Lodz, Poland.
authors.forename: E
authors.initials: E
authors.lastname: Chruscinska
authors.forename: E
authors.initials: E
authors.lastname: Garribba
authors.forename: G
authors.initials: G
authors.lastname: Micera
authors.forename: A
authors.initials: A
authors.lastname: Panzanelli
authors.forename: M
authors.initials: M
authors.lastname: Biagioli