Reversible exchange of self assembled monolayers of semi fluorinated n-alkanethiols and n-alkanethiols on Au/mica surfaces

S N Patole; Christopher John Baddeley; David O'Hagan; Neville Vincent Richardson

doi:10.1021/jp804888g

Reversible exchange of self assembled monolayers of semi fluorinated n-alkanethiols and n-alkanethiols on Au/mica surfaces

S N Patole, Christopher John Baddeley, David O'Hagan, Neville Vincent Richardson

Research output: Contribution to journal › Article › peer-review

Abstract

Scanning tunnelling microscopy (STM) and photoelastic modulation infrared reflection absorption spectroscopy (PM-IRRAS) have been used to investigate the exchange of self-assembled monolayers (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.

Original language	English
Pages (from-to)	13997-14000
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	36
Early online date	14 Aug 2008
DOIs	https://doi.org/10.1021/jp804888g
Publication status	Published - 11 Sept 2008

Keywords

ORGANIC THIOLS
GOLD
AU(111)
DISPLACEMENT
COADSORPTION
REPLACEMENT
ELECTRONICS
INTERFACE
KINETICS
SUPPORTS

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10.1021/jp804888g

Cite this

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title = "Reversible exchange of self assembled monolayers of semi fluorinated n-alkanethiols and n-alkanethiols on Au/mica surfaces",

abstract = "Scanning tunnelling microscopy (STM) and photoelastic modulation infrared reflection absorption spectroscopy (PM-IRRAS) have been used to investigate the exchange of self-assembled monolayers (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.",

keywords = "ORGANIC THIOLS, GOLD, AU(111), DISPLACEMENT, COADSORPTION, REPLACEMENT, ELECTRONICS, INTERFACE, KINETICS, SUPPORTS",

author = "Patole, {S N} and Baddeley, {Christopher John} and David O'Hagan and Richardson, {Neville Vincent}",

year = "2008",

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doi = "10.1021/jp804888g",

language = "English",

volume = "112",

pages = "13997--14000",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society (ACS)",

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T1 - Reversible exchange of self assembled monolayers of semi fluorinated n-alkanethiols and n-alkanethiols on Au/mica surfaces

AU - Patole, S N

AU - Baddeley, Christopher John

AU - O'Hagan, David

AU - Richardson, Neville Vincent

PY - 2008/9/11

Y1 - 2008/9/11

N2 - Scanning tunnelling microscopy (STM) and photoelastic modulation infrared reflection absorption spectroscopy (PM-IRRAS) have been used to investigate the exchange of self-assembled monolayers (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.

AB - Scanning tunnelling microscopy (STM) and photoelastic modulation infrared reflection absorption spectroscopy (PM-IRRAS) have been used to investigate the exchange of self-assembled monolayers (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.

KW - ORGANIC THIOLS

KW - GOLD

KW - AU(111)

KW - DISPLACEMENT

KW - COADSORPTION

KW - REPLACEMENT

KW - ELECTRONICS

KW - INTERFACE

KW - KINETICS

KW - SUPPORTS

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UR - http://pubs.acs.org/cgi-bin/article.cgi/jpccck/2008/112/i36/pdf/jp804888g.pdf

U2 - 10.1021/jp804888g

DO - 10.1021/jp804888g

M3 - Article

SN - 1932-7447

VL - 112

SP - 13997

EP - 14000

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 36

ER -

Reversible exchange of self assembled monolayers of semi fluorinated n-alkanethiols and n-alkanethiols on Au/mica surfaces

Abstract

Keywords

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GR/T18585/01: The utility and behaviour of organic fluorine compounds on surfaces

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Reversible exchange of self assembled monolayers of semi fluorinated n-alkanethiols and n-alkanethiols on Au/mica surfaces

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

GR/T18585/01: The utility and behaviour of organic fluorine compounds on surfaces

Cite this