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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Ricci, A., Rolli, C., Rothacher, S., Baraldo, L., Bonazzola, C., Calvo, E.J., Tognalli, N., Fainstein, A.
Formato: JOUR
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: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 todo:paper_14328488_v11_n11_p1511_Ricci
record_format dspace
spelling todo:paper_14328488_v11_n11_p1511_Ricci2023-10-03T16:14:00Z Electron transfer at Au surfaces modified by Tethered Osmium bipyridine-pyridine complexes Ricci, A. Rolli, C. Rothacher, S. Baraldo, L. Bonazzola, C. Calvo, E.J. Tognalli, N. Fainstein, A. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, A.
Rolli, C.
Rothacher, S.
Baraldo, L.
Bonazzola, C.
Calvo, E.J.
Tognalli, N.
Fainstein, A.
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.
format JOUR
author Ricci, A.
Rolli, C.
Rothacher, S.
Baraldo, L.
Bonazzola, C.
Calvo, E.J.
Tognalli, N.
Fainstein, A.
author_facet Ricci, A.
Rolli, C.
Rothacher, S.
Baraldo, L.
Bonazzola, C.
Calvo, E.J.
Tognalli, N.
Fainstein, A.
author_sort Ricci, A.
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
url http://hdl.handle.net/20.500.12110/paper_14328488_v11_n11_p1511_Ricci
work_keys_str_mv AT riccia electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT rollic electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT rothachers electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT baraldol electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT bonazzolac electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT calvoej electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT tognallin electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
AT fainsteina electrontransferatausurfacesmodifiedbytetheredosmiumbipyridinepyridinecomplexes
_version_ 1782027147700862976

Ejemplares similares