CONTRATADOS
CALVO Rafael
artículos
Título:
Weak exchange interaction supported by a biologically relevant long chemical bridge in a Cu-peptide model compound
Autor/es:
VIEIRA, ED; CASADO, NMC; FACCHIN, G; TORRE, MH; COSTA- FILHO, AJ; RAFAEL CALVO
Revista:
INORGANIC CHEMISTRY
Editorial:
American Chemical Society, USA
Referencias:
Año: 2006 vol. 45 p. 2942 - 2942
ISSN:
0020-1669
Resumen:
The weak exchange interaction J3 between Cu(II) ions at 11.07 Å connected by a chemical path containing 11 diamagnetic atoms, including three H-bonds and having total length 18.34 Å, is evaluated using EPR in the copper complex of the dipeptide L-alanyl-L-phenylalanine. Its magnitude, |J3|/kB=1.8×10-3 K, is compared with values obtained in other model systems and in proteins.