INVESTIGADORES
CALVO Ernesto Julio
artículos
Título:
Electrochemistry of Os(2,20-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by SAu and CAu junctions
Autor/es:
A. RICCI; N. TOGNALLI,; EZEQUIEL DE LA LLAVE; VERICAT C.; MENDEZ DE LEO, LUCILA; WILLIAMS, F.J.; DAMIAN SCHERLIS; ROBERTO C. SALVAREZZA; CALVO EJ,
Revista:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Editorial:
ROYAL SOC CHEMISTRY
Referencias:
Lugar: CAMBRIDGE; Año: 2011 vol. 13 p. 5336 - 5345
ISSN:
1463-9076
Resumen:
Osmium pyridine-bipyridine redox centers have been tethered to Au electrodes by chemical
modification through AuS and AuC bonds respectively. 4-mercapto benzoic acid and the
reduction product of the aryl diazonium salt of 4-amino benzoic acid were reacted on Au
surfaces, with further post-functionalization by chemical reaction of the osmium complex
amino-pyridine derivative with the surface carboxylates. The resulting modified Au surfaces
were characterized by polarization modulated infrared reflection absorption spectroscopy
(PM-IRRAS), scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy
(XPS), resonant raman spectroscopy and cyclic voltammetry.