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; Lucila P. Méndez De Leo; Federico J. Williams; D. Scherlis; R. Salvarezza; E. J. Calvo

doi:10.1039/C0CP02409K

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

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

A. M. Ricci,^a N. Tognalli,^b E. de la Llave,^a C. Vericat,^c Lucila P. Méndez De Leo,^a Federico J. Williams,^a D. Scherlis,^a R. Salvarezza^c and E. J. Calvo*^a

Author affiliations

* Corresponding authors

^a INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, CONICET Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
E-mail: calvo@qi.fcen.uba.ar
Fax: 541145763341
Tel: 541145763378

^b Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, 8400 S. C. de Bariloche, Río Negro, Argentina

^c INIFTA, Universidad Nacional de La Plata, CONICET, Sucursal 4 Casilla de Correo 16, 1900 La Plata, Argentina

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.

This article is part of the themed collection: Interfacial processes and mechanisms

Download options Please wait...

Article information

DOI: https://doi.org/10.1039/C0CP02409K
Article type: Paper
Submitted: 05 Nov 2010
Accepted: 10 Feb 2011
First published: 28 Feb 2011

Download Citation

Phys. Chem. Chem. Phys., 2011,13, 5336-5345

Permissions

Request permissions

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

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Physical Chemistry Chemical Physics