Interaction of cerium atoms with surface-anchored porphyrin molecules

A. Weber-Bargioni, J. Reichert, A. P. Seitsonen, W. Auwärter, A. Schiffrin, J. V. Barth

Research output: Contribution to journalArticleOther

Abstract

By exposing tetraphenyl-porphyrin (H2-TPP) molecules anchored on a Ag(111) surface to a beam of cerium atoms under vacuum conditions, a selective interaction of the lanthanide with the porphyrin macrocycle is achieved. A novel Ce-TPP species is formed that can be clearly identified in scanning tunneling microscopy data resolving intramolecular features. The electronic structure of the Ce-TPP was characterized by scanning tunneling spectroscopy, identifying molecular resonances that are related to those of coadsorbed Co-TPP. The inhomogenous local electronic density distribution of the dominating Ce-TPP and Co-TPP occupied states was visualized by tunneling spectroscopy mapping. With complementary density functional theory calculations, the geometry and energetics of the Ce-porphyrin bonding was determined. 

Original languageEnglish
Pages (from-to)3453-3455
Number of pages3
JournalJournal of Physical Chemistry C
Volume112
Issue number10
DOIs
Publication statusPublished - 13 Mar 2008
Externally publishedYes

Cite this

Weber-Bargioni, A., Reichert, J., Seitsonen, A. P., Auwärter, W., Schiffrin, A., & Barth, J. V. (2008). Interaction of cerium atoms with surface-anchored porphyrin molecules. Journal of Physical Chemistry C, 112(10), 3453-3455. https://doi.org/10.1021/jp076961i
Weber-Bargioni, A. ; Reichert, J. ; Seitsonen, A. P. ; Auwärter, W. ; Schiffrin, A. ; Barth, J. V. / Interaction of cerium atoms with surface-anchored porphyrin molecules. In: Journal of Physical Chemistry C. 2008 ; Vol. 112, No. 10. pp. 3453-3455.
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abstract = "By exposing tetraphenyl-porphyrin (H2-TPP) molecules anchored on a Ag(111) surface to a beam of cerium atoms under vacuum conditions, a selective interaction of the lanthanide with the porphyrin macrocycle is achieved. A novel Ce-TPP species is formed that can be clearly identified in scanning tunneling microscopy data resolving intramolecular features. The electronic structure of the Ce-TPP was characterized by scanning tunneling spectroscopy, identifying molecular resonances that are related to those of coadsorbed Co-TPP. The inhomogenous local electronic density distribution of the dominating Ce-TPP and Co-TPP occupied states was visualized by tunneling spectroscopy mapping. With complementary density functional theory calculations, the geometry and energetics of the Ce-porphyrin bonding was determined. ",
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Weber-Bargioni, A, Reichert, J, Seitsonen, AP, Auwärter, W, Schiffrin, A & Barth, JV 2008, 'Interaction of cerium atoms with surface-anchored porphyrin molecules' Journal of Physical Chemistry C, vol. 112, no. 10, pp. 3453-3455. https://doi.org/10.1021/jp076961i

Interaction of cerium atoms with surface-anchored porphyrin molecules. / Weber-Bargioni, A.; Reichert, J.; Seitsonen, A. P.; Auwärter, W.; Schiffrin, A.; Barth, J. V.

In: Journal of Physical Chemistry C, Vol. 112, No. 10, 13.03.2008, p. 3453-3455.

Research output: Contribution to journalArticleOther

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AU - Weber-Bargioni, A.

AU - Reichert, J.

AU - Seitsonen, A. P.

AU - Auwärter, W.

AU - Schiffrin, A.

AU - Barth, J. V.

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AB - By exposing tetraphenyl-porphyrin (H2-TPP) molecules anchored on a Ag(111) surface to a beam of cerium atoms under vacuum conditions, a selective interaction of the lanthanide with the porphyrin macrocycle is achieved. A novel Ce-TPP species is formed that can be clearly identified in scanning tunneling microscopy data resolving intramolecular features. The electronic structure of the Ce-TPP was characterized by scanning tunneling spectroscopy, identifying molecular resonances that are related to those of coadsorbed Co-TPP. The inhomogenous local electronic density distribution of the dominating Ce-TPP and Co-TPP occupied states was visualized by tunneling spectroscopy mapping. With complementary density functional theory calculations, the geometry and energetics of the Ce-porphyrin bonding was determined. 

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Weber-Bargioni A, Reichert J, Seitsonen AP, Auwärter W, Schiffrin A, Barth JV. Interaction of cerium atoms with surface-anchored porphyrin molecules. Journal of Physical Chemistry C. 2008 Mar 13;112(10):3453-3455. https://doi.org/10.1021/jp076961i