Raman and IR study on copper binding of histamine (Articolo in rivista)

Type

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

Label

• Raman and IR study on copper binding of histamine (Articolo in rivista) (literal)

Anno

• 2003-01-01T00:00:00+01:00 (literal)

Alternative label

• Torreggiani A., Tamba M., Bonora s:, Fini G. (2003)
  Raman and IR study on copper binding of histamine
  in Biopolymers (Print)
  (literal)

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

• Torreggiani A., Tamba M., Bonora s:, Fini G. (literal)

Pagina inizio

• 290 (literal)

Pagina fine

• 298 (literal)

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• 72 (literal)

Rivista

• Biopolymers (Rivista)

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

• A comparative Raman and FTIR study of histamine (Hm), a small hormone present in a wide selection of living organisms, and its complexes with Copper (II) at different pH values was carried out. Both the Raman and IR spectra present some marker bands useful for the identification of the structure of the species predominating in the Cu(II) aqueous and alcoholic systems. In particular, Raman spectroscopy appears to be an useful tool for analysing the tautomeric equilibrium of the imidazole ring of Hm, since some bands (i.e. nC4=C5) appear at different wavenumbers depending on whether the imidazole moiety is in the Nt-H (tautomer I) or Np-H (tautomer II) protonated form. In aqueous solutions the manner in which Hm binds to Cu(II) depends on pH. At basic pH the most relevant species formed are a dimer, [Cu2L2H-2]2+, and a monomeric complex, [CuL] 2- or [CuL2] +. On the contrary, by decreasing pH, Hm acts as a mono-/bi-dentate ligand, giving rise to two types of monomeric complexes, [CuLH]2- and [CuL]2- or [CuL2]+. With respect to the Cu(II)-Hm alcoholic system, both the aminic group and the imidazole ring (tautomer I) take part in the Cu(II) co-ordination, leading to the formation of the [CuL]2- or [CuL2]+ monomeric complex. (literal)

Note

• ISI Web of Science (WOS) (literal)

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• Istituto I.S.O.F. (C.N.R.), via P. Gobetti 101, 40129 Bologna, Italy; Sez. Chimica e Prop. Biochimica, Dip. Biochimica, Università di Bologna, via Belmeloro 8/2, 40126 Bologna, Italy. (literal)

Titolo

• Raman and IR study on copper binding of histamine (literal)

Prodotto di

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Modelli biomimetici di stress radicalico e biomarcatori correlati (PM.P06.006.001) (Modulo)

Autore CNR

• ARMIDA TORREGGIANI (Unità di personale interno)
• MAURIZIO TAMBA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Raman and IR study on copper binding of histamine" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Modelli biomimetici di stress radicalico e biomarcatori correlati (PM.P06.006.001) (Modulo)

Autore CNR di

• MAURIZIO TAMBA (Unità di personale interno)
• ARMIDA TORREGGIANI (Unità di personale interno)

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

• Biopolymers (Rivista)

Insieme di parole chiave di

• Parole chiave di "Raman and IR study on copper binding of histamine" (Insieme di parole chiave)