TY - JOUR
T1 - Electrochemistry of Os(2,2′-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by S-Au and C-Au junctions
AU - Ricci, A. M.
AU - Tognalli, N.
AU - De La Llave, E.
AU - Vericat, C.
AU - Méndez De Leo, Lucila P.
AU - Williams, Federico J.
AU - Scherlis, D.
AU - Salvarezza, R.
AU - Calvo, E. J.
PY - 2011/3/28
Y1 - 2011/3/28
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79952637195&partnerID=8YFLogxK
U2 - 10.1039/c0cp02409k
DO - 10.1039/c0cp02409k
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C2 - 21359311
AN - SCOPUS:79952637195
SN - 1463-9076
VL - 13
SP - 5336
EP - 5345
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 12
ER -