Self-Assembly of a Pyridine-Terminated Thiol Monolayer on Au(111)

Christophe Silien; Manfred Buck; Gudrun Goretzki; Dorothée Lahaye; Neil R. Champness; Tobias Weidner; Michael Zharnikov

doi:10.1021/la802966s

Self-Assembly of a Pyridine-Terminated Thiol Monolayer on Au(111)

Christophe Silien^*, Manfred Buck, Gudrun Goretzki, Dorothée Lahaye, Neil R. Champness, Tobias Weidner, Michael Zharnikov

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

71 Citations (Scopus)

Abstract

Self-assembled monolayers (SAMs) of 3-(4-pyridine-4-yl-phenyl)-propane-1- thiol (PyP3) on Au(111)/mica have been studied by scanning tunneling microscopy (SIM), polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS), high-resolution X-ray photoemission spectroscopy (HRXPS), and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. The quality of the SAM is found to be strongly dependent on the solvent. Substantial gold corrosion is observed if pure ethanol is used. In contrast, highly ordered and densely packed SAMs are formed from acetonitrile or a KOH/ethanol mixture. The structure is described by a 2√3 × √3 unit cell with the aromatic moiety oriented nearly perpendicular to the surface. The PyP3 films form with the pyridine moiety deprotonated. Variation of pH allows reversible protonation without measurable damage of the SAM.

Original language	English
Journal	Langmuir
Volume	25
Issue	2
Pages (from-to)	959-967
Number of pages	9
ISSN	0743-7463
DOIs	https://doi.org/10.1021/la802966s
Publication status	Published - 2009
Externally published	Yes

Access to Document

10.1021/la802966s

Cite this

@article{2459cbbba982445f840066fac6dffc0b,

title = "Self-Assembly of a Pyridine-Terminated Thiol Monolayer on Au(111)",

abstract = "Self-assembled monolayers (SAMs) of 3-(4-pyridine-4-yl-phenyl)-propane-1- thiol (PyP3) on Au(111)/mica have been studied by scanning tunneling microscopy (SIM), polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS), high-resolution X-ray photoemission spectroscopy (HRXPS), and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. The quality of the SAM is found to be strongly dependent on the solvent. Substantial gold corrosion is observed if pure ethanol is used. In contrast, highly ordered and densely packed SAMs are formed from acetonitrile or a KOH/ethanol mixture. The structure is described by a 2√3 × √3 unit cell with the aromatic moiety oriented nearly perpendicular to the surface. The PyP3 films form with the pyridine moiety deprotonated. Variation of pH allows reversible protonation without measurable damage of the SAM.",

author = "Christophe Silien and Manfred Buck and Gudrun Goretzki and Doroth{\'e}e Lahaye and Champness, {Neil R.} and Tobias Weidner and Michael Zharnikov",

year = "2009",

doi = "10.1021/la802966s",

language = "English",

volume = "25",

pages = "959--967",

journal = "Langmuir",

issn = "0743-7463",

publisher = "American Chemical Society",

number = "2",

}

TY - JOUR

T1 - Self-Assembly of a Pyridine-Terminated Thiol Monolayer on Au(111)

AU - Silien, Christophe

AU - Buck, Manfred

AU - Goretzki, Gudrun

AU - Lahaye, Dorothée

AU - Champness, Neil R.

AU - Weidner, Tobias

AU - Zharnikov, Michael

PY - 2009

Y1 - 2009

N2 - Self-assembled monolayers (SAMs) of 3-(4-pyridine-4-yl-phenyl)-propane-1- thiol (PyP3) on Au(111)/mica have been studied by scanning tunneling microscopy (SIM), polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS), high-resolution X-ray photoemission spectroscopy (HRXPS), and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. The quality of the SAM is found to be strongly dependent on the solvent. Substantial gold corrosion is observed if pure ethanol is used. In contrast, highly ordered and densely packed SAMs are formed from acetonitrile or a KOH/ethanol mixture. The structure is described by a 2√3 × √3 unit cell with the aromatic moiety oriented nearly perpendicular to the surface. The PyP3 films form with the pyridine moiety deprotonated. Variation of pH allows reversible protonation without measurable damage of the SAM.

AB - Self-assembled monolayers (SAMs) of 3-(4-pyridine-4-yl-phenyl)-propane-1- thiol (PyP3) on Au(111)/mica have been studied by scanning tunneling microscopy (SIM), polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS), high-resolution X-ray photoemission spectroscopy (HRXPS), and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. The quality of the SAM is found to be strongly dependent on the solvent. Substantial gold corrosion is observed if pure ethanol is used. In contrast, highly ordered and densely packed SAMs are formed from acetonitrile or a KOH/ethanol mixture. The structure is described by a 2√3 × √3 unit cell with the aromatic moiety oriented nearly perpendicular to the surface. The PyP3 films form with the pyridine moiety deprotonated. Variation of pH allows reversible protonation without measurable damage of the SAM.

UR - http://www.scopus.com/inward/record.url?scp=60849120126&partnerID=8YFLogxK

U2 - 10.1021/la802966s

DO - 10.1021/la802966s

M3 - Journal article

C2 - 19138159

AN - SCOPUS:60849120126

SN - 0743-7463

VL - 25

SP - 959

EP - 967

JO - Langmuir

JF - Langmuir

IS - 2

ER -

Self-Assembly of a Pyridine-Terminated Thiol Monolayer on Au(111)

Abstract

Access to Document

Other files and links

Fingerprint

Cite this