Cu(II)-L-glutamine and L-asparagine binary complexes. A thermodynamic and spectroscopic study(245 views visite) 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.
Keywords Parole chiave: Not available. Non disponibili.
Affiliations Affiliazioni: 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
336 Records (321 escludendo Abstract e Conferenze). Impact factor totale: 1204.711 (1162.879 escludendo Abstract e Conferenze). Impact factor a 5 anni totale: 1242.565 (1198.575 escludendo Abstract e Conferenze).
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