The Effect of the Ring Size of Fused Chelates on the Thermodynamic and Spectroscopic Properties of Peptide Complexes of Copper(II). (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• The Effect of the Ring Size of Fused Chelates on the Thermodynamic and Spectroscopic Properties of Peptide Complexes of Copper(II). (Articolo in rivista) (literal)

Anno

• 2001-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/S0277-5387(01)00918-4 (literal)

Alternative label

• Daniele Sanna, Csaba Gábor Ágoston, Giovanni Micera, Imre Sóvágó (2001)
  The Effect of the Ring Size of Fused Chelates on the Thermodynamic and Spectroscopic Properties of Peptide Complexes of Copper(II).
  in Polyhedron
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Daniele Sanna, Csaba Gábor Ágoston, Giovanni Micera, Imre Sóvágó (literal)

Pagina inizio

• 3079 (literal)

Pagina fine

• 3090 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S0277538701009184 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 20 (literal)

Rivista

• Polyhedron (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto C.N.R. per l'Applicazione delle Tecniche Chimiche Avanzate ai Problemi Agrobiologici, Via Vienna 2, I-07100 Sassari, Italy, Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4010 Debrecen, Hungary Department of Chemistry, University of Sassari, Via Vienna 2, I-07100 Sassari, Italy (literal)

Titolo

• The Effect of the Ring Size of Fused Chelates on the Thermodynamic and Spectroscopic Properties of Peptide Complexes of Copper(II). (literal)

Abstract

• Copper(II) complexes of the tripeptides GlyGly-beta -Ala, Gly-beta -AlaGly, beta -AlaGlyGly, Gly-beta -Ala-beta -Ala, beta -AlaGly-beta -Ala, beta -Ala-beta -Ala-beta -Ala and the tetrapeptides GlyGlyGly-beta -Ala, GlyGly-beta -AlaGly, Gly-beta -AlaGlyGly and beta -AlaGlyGlyGly were studied by potentiometric, EPR and UV-Vis spectroscopic methods. The stoichiometry of the complexes of peptides containing P-alanine residues are very similar to those of oligoglycines; [CuL](+), [CuL2], [CuH-1L], [CuH-2L](-), [CuH-1L2](-) and [CuH-3L](2-) were detected as the major species in ail cases. The presence of beta -alanine residues, however, influenced both thermodynamic stability and coordination geometry of various complexes. In most cases the formation of six-membered chelate rings resulted in a decrease of thermodynamic stability and distortion of coordination geometry of peptide complexes, especially if beta -alanine residues were present in N-terminal or adjacent positions. On the contrary, the formation of the mixed (5,6,5) and (5,5,6) linked chelate systems of tripeptides is favoured over the pure five-membered rings. (literal)

Prodotto di

• Institute of biomolecular chemistry (ICB) (Istituto)

Autore CNR

• DANIELE SANNA (Unità di personale interno)

Incoming links:

Autore CNR di

• DANIELE SANNA (Unità di personale interno)

Prodotto

• Institute of biomolecular chemistry (ICB) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Polyhedron (Rivista)