Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes

Chemically modified electrodes by the osmium complex [Os(bpy) 2Clpy - X] + PF - 6 tethered to Au surfaces by (1) reaction of cysteamine with the aldehyde (X=CHO), (2) mercapto alkanoic acid reaction with amine [X= (CH 2) 2NH 2], and (3) reduction of the diazonium salt of paminobenzoic acid and furth...

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Autores principales:	Ricci, Alejandra Marcela, Baraldo Victorica, Luis Mario, Bonazzola, Cecilia, Calvo, Ernesto Julio
Publicado:	2007
Materias:	Charge transfer Diazonium FTIR-RAS Osmium bipyridil Resonant Raman SAM Thiol Amine derivatives Chemically modified electrodes Cysteamine Electron transfer Absorption spectroscopy Aldehydes Amines Electron transitions Gold Osmium compounds Pyridine Raman spectroscopy Surfaces
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14328488_v11_n11_p1511_Ricci http://hdl.handle.net/20.500.12110/paper_14328488_v11_n11_p1511_Ricci
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14328488_v11_n11_p1511_Ricci
record_format	dspace
spelling	paper:paper_14328488_v11_n11_p1511_Ricci2023-06-08T16:14:10Z Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes Ricci, Alejandra Marcela Baraldo Victorica, Luis Mario Bonazzola, Cecilia Calvo, Ernesto Julio Charge transfer Diazonium FTIR-RAS Osmium bipyridil Resonant Raman SAM Thiol Amine derivatives Chemically modified electrodes Cysteamine Electron transfer Absorption spectroscopy Aldehydes Amines Electron transitions Gold Osmium compounds Pyridine Raman spectroscopy Surfaces Chemically modified electrodes by the osmium complex [Os(bpy) 2Clpy - X] + PF - 6 tethered to Au surfaces by (1) reaction of cysteamine with the aldehyde (X=CHO), (2) mercapto alkanoic acid reaction with amine [X= (CH 2) 2NH 2], and (3) reduction of the diazonium salt of paminobenzoic acid and further amidation reaction with the amine derivative of the osmium complex [X=(CH 2) 2NH 2] were performed to explore the electron transfer properties of these redox-modified surfaces. The modified Au surfaces were characterized by infrared reflection absorption spectroscopy and resonant Raman spectroscopy. Cyclic voltammetry was used to study the electrochemical properties of the osmium complexes covalently attached to the surface as a function of the type and length of the tether. © 2007 Springer-Verlag. Fil:Ricci, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Baraldo, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bonazzola, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calvo, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14328488_v11_n11_p1511_Ricci http://hdl.handle.net/20.500.12110/paper_14328488_v11_n11_p1511_Ricci
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Charge transfer Diazonium FTIR-RAS Osmium bipyridil Resonant Raman SAM Thiol Amine derivatives Chemically modified electrodes Cysteamine Electron transfer Absorption spectroscopy Aldehydes Amines Electron transitions Gold Osmium compounds Pyridine Raman spectroscopy Surfaces
spellingShingle	Charge transfer Diazonium FTIR-RAS Osmium bipyridil Resonant Raman SAM Thiol Amine derivatives Chemically modified electrodes Cysteamine Electron transfer Absorption spectroscopy Aldehydes Amines Electron transitions Gold Osmium compounds Pyridine Raman spectroscopy Surfaces Ricci, Alejandra Marcela Baraldo Victorica, Luis Mario Bonazzola, Cecilia Calvo, Ernesto Julio Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes
topic_facet	Charge transfer Diazonium FTIR-RAS Osmium bipyridil Resonant Raman SAM Thiol Amine derivatives Chemically modified electrodes Cysteamine Electron transfer Absorption spectroscopy Aldehydes Amines Electron transitions Gold Osmium compounds Pyridine Raman spectroscopy Surfaces
description	Chemically modified electrodes by the osmium complex [Os(bpy) 2Clpy - X] + PF - 6 tethered to Au surfaces by (1) reaction of cysteamine with the aldehyde (X=CHO), (2) mercapto alkanoic acid reaction with amine [X= (CH 2) 2NH 2], and (3) reduction of the diazonium salt of paminobenzoic acid and further amidation reaction with the amine derivative of the osmium complex [X=(CH 2) 2NH 2] were performed to explore the electron transfer properties of these redox-modified surfaces. The modified Au surfaces were characterized by infrared reflection absorption spectroscopy and resonant Raman spectroscopy. Cyclic voltammetry was used to study the electrochemical properties of the osmium complexes covalently attached to the surface as a function of the type and length of the tether. © 2007 Springer-Verlag.
author	Ricci, Alejandra Marcela Baraldo Victorica, Luis Mario Bonazzola, Cecilia Calvo, Ernesto Julio
author_facet	Ricci, Alejandra Marcela Baraldo Victorica, Luis Mario Bonazzola, Cecilia Calvo, Ernesto Julio
author_sort	Ricci, Alejandra Marcela
title	Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes
title_short	Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes
title_full	Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes
title_fullStr	Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes
title_full_unstemmed	Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes
title_sort	electron transfer at au surfaces modified by tethered osmium bipyridine-pyridine complexes
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14328488_v11_n11_p1511_Ricci http://hdl.handle.net/20.500.12110/paper_14328488_v11_n11_p1511_Ricci
work_keys_str_mv	AT riccialejandramarcela electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes AT baraldovictoricaluismario electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes AT bonazzolacecilia electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes AT calvoernestojulio electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
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Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes

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