Cu(II)-L-glutamine and L-asparagine binary complexes. A thermodynamic and spectroscopic study(282 views) Arena G, Conato C, Contino A, Pulidori F, Purrello R, Remelli M, Tabbì G
Ann Chim (ISSN: 0003-4592), 1998 Jan; 88(1-2): 1-12.
Affiliations: Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
Dipartimento di Chimica, Università di Ferrara, Via L. Borsari 46, 44100 Ferrara, Italy
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Cu(II)-L-glutamine and L-asparagine binary complexes. A thermodynamic and spectroscopic study
The binary complexes of H+ and Cu(II) with L-glutamine and L-asparagine were studied by means of a combined potentiometric and calorimetric investigation. The thermodynamic parameters (ΔG°, ΔH° and ΔS°) while on one hand help in understanding the role played by the chain length on the basicity of the amino group, on the other hand do not give a clear-cut answer as to the involvement in the coordination to Cu(II) of the terminal amido group of L-asparagine. A spectroscopic investigation (EPR and UV-VIS) carried out to solve this problem, clearly shows that both ligands are bidentate.
Cu(II)-L-glutamine and L-asparagine binary complexes. A thermodynamic and spectroscopic study
Kállay C, Dávid A, Timári S, Nagy EM, Sanna D, Garribba E, Micera G, De Bona P, Pappalardo G, Rizzarelli E, Sóvágó I * Copper(II) complexes of rat amylin fragments(333 views) Dalton T (ISSN: 1477-9234, 1477-9226, 1477-9234electronic), 2011 Oct 14; 40(38): 9711-9721. Impact Factor:3.838 ViewExport to BibTeXExport to EndNote