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2009-03-26 - Article/Dans un journal avec peer-review - Anglais - 5 page(s)

Vonau F., Linares M., Isare B., Aubel D., Habar M., Bouteiller L., Reiter Günter, Geskin V.M., Zerbetto F., Lazzaroni Roberto , Simon L., "Branched Substituents Generate Improved Supramolecular Ordering in Physisorbed Molecular Assemblies" in Journal of Physical Chemistry C: Nanomaterials, Interfaces, and Hard Matter, 113, 12, 4955-4959

  • Edition : American Chemical Society, Washington (DC)
  • Codes CREF : Chimie quantique (DI1321), Optique (DI1250)
  • Unités de recherche UMONS : Chimie des matériaux nouveaux (S817)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) We present an experimental study supported by molecular simulations of the influence of the shape of alkyl side groups on the interactions and self-organization of supramolecular assemblies, built from bis-urea-substituted toluene molecules deposited on Au(111) surfaces. In particular, we demonstrate the crucial importance of the presence of branched alkyl groups (i.e., ethylhexyl) that allow two adjacent supramolecular polymers to arrange closer to each other, leading to the formation of molecular “zippers”. Thus, steric constraints at the level of individual molecules can generate improved ordering between neighboring supramolecular polymers interacting with a planar substrate.

Notes :
  • (Anglais) Publié en ligne le 5 mars 2009
Identifiants :
  • DOI : 10.1021/jp809552j