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Issue 12, 2011
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Electrochemistry of Os(2,2′-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by S–Au and C–Au junctions

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Abstract

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.

Graphical abstract: Electrochemistry of Os(2,2′-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by S–Au and C–Au junctions

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Publication details

The article was received on 05 Nov 2010, accepted on 10 Feb 2011 and first published on 28 Feb 2011


Article type: Paper
DOI: 10.1039/C0CP02409K
Phys. Chem. Chem. Phys., 2011,13, 5336-5345

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    Electrochemistry of Os(2,2′-bpy)2ClPyCH2NHCOPh tethered to Au electrodes by S–Au and C–Au junctions

    A. M. Ricci, N. Tognalli, E. de la Llave, C. Vericat, L. P. Méndez De Leo, F. J. Williams, D. Scherlis, R. Salvarezza and E. J. Calvo, Phys. Chem. Chem. Phys., 2011, 13, 5336
    DOI: 10.1039/C0CP02409K

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