Origins of displacement in 1-adamantanethiolate self-assembled monolayers

Arrelaine A. Dameron, Thomas J. Mullen, Robert W. Hengstebeck, Héctor M. Saavedra, Paul S. Weiss

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

We have investigated the origins of the susceptibility of 1-adamantanethiolate self-assembled monolayers on Au{111} to displacement by other thiol molecules. Using scanning tunneling microscopy, X-ray photoelectron spectroscopy, and electrochemical desportion experiments to probe separated self-assembled monolayers on Au{111} created by the displacement of 1-adamantanethiolate with n-dodecanethiolate, we have shown that there is no difference between the chemical environments at the Au{111} surface for single-component or separated self-assembled monolayers of each molecule. There are, however, differences in interaction strengths between the 1-adamantanethiolate molecules and the n-dodecanethiolate molecules that contribute to 1-adamantanethiolate displacement.

Original languageEnglish (US)
Pages (from-to)6747-6752
Number of pages6
JournalJournal of Physical Chemistry C
Volume111
Issue number18
DOIs
StatePublished - May 10 2007

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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