Author(s)
S. N. Patole, C. J. Baddeley, D. O'Hagan, N. V. Richardson
ISBN
1932-7447
Publication year
2008
Periodical
Journal of Physical Chemistry C
Periodical Number
36
Volume
112
Pages
13997-14000
Author Address
Scanning tunnelling Microscopy (STM) and photoelastic modulation infrared reflection absorption spectroscopy (PM-IRRAS) have been used to investigate the exchange of self-assembled rnonolayers (SAMs) of n-octanethiolate by semifluorinated n-octanethiolate from ethanolic solution at 340 K. The process occurs via displacement of the thiols from domain boundaries. By contrast, the reverse exchange process occurs more homogeneously via the formation of mixed thiolate domains. The ability of semifluorinated octanethiolate to adopt a range of adsorption sites with approximately similar adsorption energies may lead to this contrasting behavior.