Self-assembled Monolayers of Cobalt(II)-(4-tert-Butylphenyl)-Porphyrins: The Influence of the Electronic Dipole on Scanning Tunnelling Microscopy Images (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Self-assembled Monolayers of Cobalt(II)-(4-tert-Butylphenyl)-Porphyrins: The Influence of the Electronic Dipole on Scanning Tunnelling Microscopy Images (Articolo in rivista) (literal)

Anno

• 2004-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1021/ja0470970 (literal)

Alternative label

• V. Arima ; E. Fabiano ; R.I.R. Blyth ; F. Della Sala ; F. Matino ; J. Thompson ; R. Cingolani ; R. Rinaldi (2004)
  Self-assembled Monolayers of Cobalt(II)-(4-tert-Butylphenyl)-Porphyrins: The Influence of the Electronic Dipole on Scanning Tunnelling Microscopy Images
  in Journal of the American Chemical Society (Online)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• V. Arima ; E. Fabiano ; R.I.R. Blyth ; F. Della Sala ; F. Matino ; J. Thompson ; R. Cingolani ; R. Rinaldi (literal)

Pagina inizio

• 16951 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://pubs.acs.org/doi/abs/10.1021/ja0470970 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 126 (literal)

Rivista

• Journal of the American Chemical Society (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• National Nanotechnology Laboratory of INFM, Distretto Tecnologico ISUFI, Università di Lecce, Via Arnesano, 73100 Lecce, Italy (literal)

Titolo

• Self-assembled Monolayers of Cobalt(II)-(4-tert-Butylphenyl)-Porphyrins: The Influence of the Electronic Dipole on Scanning Tunnelling Microscopy Images (literal)

Abstract

• Self-assembled monolayers (SAMs) of cobalt(II) 5,10,15,20-tetrakis(4-tert-butylphenyl)-porphyrin, a promising material for optical, photoelectrochemical, and chemical sensor applications, were prepared on Au(111) via axial ligation to 4-aminothiophenol, and studied by several surface science techniques. Scanning tunneling microscopy (STM) and spectroscopy (STS) measurements showed the apparent topology of the Au(111) herringbone structure reconstruction, but with bias-dependent contrast images and asymmetric I/V characteristics. Photoelectron spectroscopy confirmed the presence of metalloporphyrins on the surface, whereas near-edge X-ray absorption (NEXAFS) measurements revealed that the porphyrin ring was tilted by about 70° with respect to the surface plane. The above effects are ascribed to the presence of oriented molecular dipole layers between the metal and the organic material as confirmed by a comparison with first-principles density-functional theory calculations. The measured bias-dependent STM profiles have been reproduced by a simple monodimensional tunneling model. (literal)

Autore CNR

• FABIO DELLA SALA (Persona)
• EDUARDO FABIANO (Unità di personale interno)
• ROBERTO CINGOLANI (Persona)
• ROSARIA RINALDI (Unità di personale esterno)
• VALENTINA ARIMA (Unità di personale interno)

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• Parole chiave di "Self-assembled Monolayers of Cobalt(II)-(4-tert-Butylphenyl)-Porphyrins: The Influence of the Electronic Dipole on Scanning Tunnelling Microscopy Images" (Insieme di parole chiave)

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Autore CNR di

• ROSARIA RINALDI (Unità di personale esterno)
• FABIO DELLA SALA (Persona)
• ROBERTO CINGOLANI (Persona)
• VALENTINA ARIMA (Unità di personale interno)
• EDUARDO FABIANO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of the American Chemical Society (Rivista)

Insieme di parole chiave di

• Parole chiave di "Self-assembled Monolayers of Cobalt(II)-(4-tert-Butylphenyl)-Porphyrins: The Influence of the Electronic Dipole on Scanning Tunnelling Microscopy Images" (Insieme di parole chiave)