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

Luigi Ermenegildo Sangaletti, Mattia Fanetti, Patrizia Borghetti, Elena Magnano, Federica Bondino, Giovanni Di Santo, Carla Castellarin-Cudia, Bidini Taleatu, Luca Floreano, Andrea Goldoni

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

62 Citazioni (Scopus)

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.
Lingua originaleEnglish
pagine (da-a)4155-4162
Numero di pagine8
RivistaJOURNAL OF PHYSICAL CHEMISTRY. C
Volume115
DOI
Stato di pubblicazionePubblicato - 2011

Keywords

  • iron
  • porphyrins
  • surface science
  • x-ray spectroscopy

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