INVESTIGADORES
DE LA LLAVE Ezequiel Pablo
artículos
Título:
Electrochemistry of Os(2,2´-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by S-Au and C-Au junctions
Autor/es:
RICCI, A.M; TOGNALLI, N.; DE LA LLAVE, E; VERICAT, C; MÉNDEZ DE LEO, L.P.; WILLIAMS, F.J.; SCHERLIS, D.A.; SALVAREZZA, R; CALVO, E.J
Revista:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Editorial:
ROYAL SOC CHEMISTRY
Referencias:
Lugar: London (U.K.); 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 Au?S and Au?C 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.
