Molecular suction pads: Self-assembled monolayers of subphthalocyaninatoboron complexes on gold

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  • Ulrich Glebe, University of Kassel, Max-Planck Institute for Polymer Research, Mainz
  • ,
  • Joe E. Baio, Max Planck Institute for Polymer Research
  • ,
  • Líney Árnadõttir, Portland State University, Oregon
  • ,
  • Ulrich Siemeling, University of Kassel
  • ,
  • Tobias Weidner

Subphthalocyaninatoboron complexes with six long-chain alkylthio substituents in their periphery are applicable for the formation of self-assembled monolayers (SAMs) on gold. Such films are prepared from solution with the axially chlorido-substituted derivatives and characterised by near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The results are in accord with the formation of SAMs assembled by the chemisorption of both covalently bound thiolate-type as well as coordinatively bound thioether units. The adsorbate molecules adopt an essentially flat adsorption geometry on the substrate, resembling a suction pad on a surface. Lying low: A detailed analysis of thin films of subphthalocyaninatoboron derivatives self-assembled from solution onto gold surfaces is presented. The molecules are present on the substrate in a predominantly flat adsorption geometry, resembling a suction pad on a surface.

OriginalsprogEngelsk
TidsskriftChemPhysChem
Vol/bind14
Nummer6
Sider (fra-til)1155-1160
Antal sider6
ISSN1439-4235
DOI
StatusUdgivet - 15 apr. 2013
Eksternt udgivetJa

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