INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Electrochemistry of Os(2,2¡ä-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by S¨CAu and C¨CAu junctions
Autor/es:
A. RICCI; N. G. TOGNALLI; E. DE LA LLAVE; C. VERICAT; L. P. MÉNDEZ DE LEO; F. J. WILLIAMS; D. SCHERLIS; R. SALVAREZZA; E. J. CALVO
Revista:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Editorial:
ROYAL SOC CHEMISTRY
Referencias:
Lugar: Londres; 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.
