In-situ metalation of porphyrin molecules in ultrahigh vacuum (UHV) is of great interest for the characterization of pure species in a controlled environment Here, we report the characterization of the electronic states and the molecules' geometrical adaptation during the formation of pure 2H-5,10,15,20-tetraphenylporphyrin (2H-TPP) and Fe-tetraphenylporphyrin (Fe-TPP) layers on Ag(111) single crystal. Core level absorption spectra indicate the flat conformation of the monolayer suggesting an adatom hopping instead of a surface mediated dopant diffusion for the metalation process. Photoemission points out that the interaction between Fe d(z)-states and Ag, bands increases the monolaye rmetallic character already induced by the charge transfer from the substrate.

Di Santo, G., Castellarin Cudia, C., Fanetti, M., Taleatu, B., Borghetti, P., Sangaletti, L. E., Floreano, L., Magnano, E., Bondino, F., Goldoni, A., Conformational Adaptation and Electronic Structure of 2H-Tetraphenylporphyrin on Ag(111) during Fe Metalation, <<JOURNAL OF PHYSICAL CHEMISTRY. C>>, 2011; 115 (10): 4155-4162. [doi:10.1021/jp111151n] [http://hdl.handle.net/10807/11601]

Conformational Adaptation and Electronic Structure of 2H-Tetraphenylporphyrin on Ag(111) during Fe Metalation

C; Fanetti;B; Borghetti;Patrizia; Sangaletti;L; Magnano;Elena; Bondino;
2011

Abstract

In-situ metalation of porphyrin molecules in ultrahigh vacuum (UHV) is of great interest for the characterization of pure species in a controlled environment Here, we report the characterization of the electronic states and the molecules' geometrical adaptation during the formation of pure 2H-5,10,15,20-tetraphenylporphyrin (2H-TPP) and Fe-tetraphenylporphyrin (Fe-TPP) layers on Ag(111) single crystal. Core level absorption spectra indicate the flat conformation of the monolayer suggesting an adatom hopping instead of a surface mediated dopant diffusion for the metalation process. Photoemission points out that the interaction between Fe d(z)-states and Ag, bands increases the monolaye rmetallic character already induced by the charge transfer from the substrate.
Inglese
Di Santo, G., Castellarin Cudia, C., Fanetti, M., Taleatu, B., Borghetti, P., Sangaletti, L. E., Floreano, L., Magnano, E., Bondino, F., Goldoni, A., Conformational Adaptation and Electronic Structure of 2H-Tetraphenylporphyrin on Ag(111) during Fe Metalation, <<JOURNAL OF PHYSICAL CHEMISTRY. C>>, 2011; 115 (10): 4155-4162. [doi:10.1021/jp111151n] [http://hdl.handle.net/10807/11601]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/11601
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