Disorder, solvent effects and substitutional self-assembly of alkane dithiols from alkane thiol SAMs

Hicham Hamoudi, Céline Dablemont, Vladimir A. Esaulov

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14 Citations (Scopus)

Abstract

Substitutional self-assembly of nonanedithiol from a hexanethiol self-assembled monolayer and the effects of use of ethanol and n-hexane as solvents were investigated. It was found that presence of original solvents in the HT SAM allowed easy replacement, while dried SAMs were more resilient to substitution and much longer times are necessary for substitution to occur. In general substitution in ethanol leads to production of a disordered dithiol SAM, with existence of extra molecules bonded to the SAM. Well ordered substituted SAMs were obtained with degassed n-hexane solutions and in absence of ambient light.

Original languageEnglish
Pages (from-to)116-120
Number of pages5
JournalSurface Science
Volume605
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2011

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Keywords

  • Alkane dithiol
  • Au(111)
  • Cyclic voltammetry
  • Nonanedithiol
  • RAIRS
  • Self-assembled monolayer
  • Substitution

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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