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Spectroscopic characterization of the on-surface induced (cyclo)dehydrogenation of a N-heteroaromatic compound on noble metal surfaces

Palacio, Irene; Lisa Pinardi, Anna; Martínez-Moyano, Ignacio J.; Preobrajenski, A. LU ; Cossaro, Albano; Jancarik, Andrej; Stará, I.; Starý, I.; Méndez, J. and Martín-Gago, J. A., et al. (2017) In Physical Chemistry Chemical Physics 19(33). p.22454-22461
Abstract

New nanoarchitectures can be built from polycyclic aromatic hydrocarbons (PAHs) by exploiting the capability of some metal surfaces for inducing cyclodehydrogenation reactions. This bottom-up approach allows the formation of nanostructures with a different dimensionality from the same precursor as a consequence of the diffusion and coupling of the PAHs adsorbed on the surface. In this work we present a thorough study, by means of a combination of X-ray photoemission spectroscopy, near-edge X-ray absorption fine structure and scanning tunneling microscopy with first principle calculations of the structural and chemical transformations undergone by pyridyl-substituted dibenzo[5]helicene on three coinage surfaces, namely Cu(110), Cu(111)... (More)

New nanoarchitectures can be built from polycyclic aromatic hydrocarbons (PAHs) by exploiting the capability of some metal surfaces for inducing cyclodehydrogenation reactions. This bottom-up approach allows the formation of nanostructures with a different dimensionality from the same precursor as a consequence of the diffusion and coupling of the PAHs adsorbed on the surface. In this work we present a thorough study, by means of a combination of X-ray photoemission spectroscopy, near-edge X-ray absorption fine structure and scanning tunneling microscopy with first principle calculations of the structural and chemical transformations undergone by pyridyl-substituted dibenzo[5]helicene on three coinage surfaces, namely Cu(110), Cu(111) and Au(111). Upon annealing, on-surface chemical reactions are promoted affecting the adsorbate/substrate and the molecule/molecule interactions. This thermally induced process favours the transformation from diffusing isolated molecules to polymeric nanographene chains and finally to N-doped graphene.

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organization
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Contribution to journal
publication status
published
subject
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Physical Chemistry Chemical Physics
volume
19
issue
33
pages
8 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85028459293
  • wos:000408257700055
ISSN
1463-9076
DOI
10.1039/c7cp03955g
language
English
LU publication?
yes
id
2d5b33df-0440-4b5f-bf96-5b808afed261
date added to LUP
2017-09-15 11:59:23
date last changed
2018-01-16 13:25:50
@article{2d5b33df-0440-4b5f-bf96-5b808afed261,
  abstract     = {<p>New nanoarchitectures can be built from polycyclic aromatic hydrocarbons (PAHs) by exploiting the capability of some metal surfaces for inducing cyclodehydrogenation reactions. This bottom-up approach allows the formation of nanostructures with a different dimensionality from the same precursor as a consequence of the diffusion and coupling of the PAHs adsorbed on the surface. In this work we present a thorough study, by means of a combination of X-ray photoemission spectroscopy, near-edge X-ray absorption fine structure and scanning tunneling microscopy with first principle calculations of the structural and chemical transformations undergone by pyridyl-substituted dibenzo[5]helicene on three coinage surfaces, namely Cu(110), Cu(111) and Au(111). Upon annealing, on-surface chemical reactions are promoted affecting the adsorbate/substrate and the molecule/molecule interactions. This thermally induced process favours the transformation from diffusing isolated molecules to polymeric nanographene chains and finally to N-doped graphene.</p>},
  author       = {Palacio, Irene and Lisa Pinardi, Anna and Martínez-Moyano, Ignacio J. and Preobrajenski, A. and Cossaro, Albano and Jancarik, Andrej and Stará, I. and Starý, I. and Méndez, J. and Martín-Gago, J. A. and López, M. F.},
  issn         = {1463-9076},
  language     = {eng},
  number       = {33},
  pages        = {22454--22461},
  publisher    = {Royal Society of Chemistry},
  series       = {Physical Chemistry Chemical Physics},
  title        = {Spectroscopic characterization of the on-surface induced (cyclo)dehydrogenation of a N-heteroaromatic compound on noble metal surfaces},
  url          = {http://dx.doi.org/10.1039/c7cp03955g},
  volume       = {19},
  year         = {2017},
}