skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Chemically Transformable Configurations of Mercaptohexadecanoic Acid Self-Assembled Monolayers Adsorbed on Au(111)

Abstract

Carboxyl terminated Self-Assembled Monolayers (SAMs) are commonly used in a variety of applications, with the assumption that the molecules form well ordered monolayers. In this work, NEXAFS verifies well ordered monolayers can be formed using acetic acid in the solvent. Disordered monolayers with unbound molecules present in the result using only ethanol. A stark reorientation occurs upon deprotonation of the endgroup by rinsing in a KOH solution. This reorientation of the endgroup is reversible with tilted over, hydrogen bound carboxyl groups while carboxylate-ion endgroups are upright. C1s photoemission shows that SAMs formed and rinsed with acetic acid in ethanol, the endgroups are protonated, while without, a large fraction of the molecules on the surface are carboxylate terminated.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
15013803
Report Number(s):
UCRL-JRNL-200602
Journal ID: ISSN 0743-7463; LANGD5; TRN: US0801271
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 20; Journal Issue: 7; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACETIC ACID; ETHANOL; HYDROGEN; PHOTOEMISSION

Citation Formats

van Buuren, T, Bostedt, C, Nelson, A J, Terminello, L J, Vance, A L, Fadley, C S, and Willey, T M. Chemically Transformable Configurations of Mercaptohexadecanoic Acid Self-Assembled Monolayers Adsorbed on Au(111). United States: N. p., 2003. Web.
van Buuren, T, Bostedt, C, Nelson, A J, Terminello, L J, Vance, A L, Fadley, C S, & Willey, T M. Chemically Transformable Configurations of Mercaptohexadecanoic Acid Self-Assembled Monolayers Adsorbed on Au(111). United States.
van Buuren, T, Bostedt, C, Nelson, A J, Terminello, L J, Vance, A L, Fadley, C S, and Willey, T M. 2003. "Chemically Transformable Configurations of Mercaptohexadecanoic Acid Self-Assembled Monolayers Adsorbed on Au(111)". United States. https://www.osti.gov/servlets/purl/15013803.
@article{osti_15013803,
title = {Chemically Transformable Configurations of Mercaptohexadecanoic Acid Self-Assembled Monolayers Adsorbed on Au(111)},
author = {van Buuren, T and Bostedt, C and Nelson, A J and Terminello, L J and Vance, A L and Fadley, C S and Willey, T M},
abstractNote = {Carboxyl terminated Self-Assembled Monolayers (SAMs) are commonly used in a variety of applications, with the assumption that the molecules form well ordered monolayers. In this work, NEXAFS verifies well ordered monolayers can be formed using acetic acid in the solvent. Disordered monolayers with unbound molecules present in the result using only ethanol. A stark reorientation occurs upon deprotonation of the endgroup by rinsing in a KOH solution. This reorientation of the endgroup is reversible with tilted over, hydrogen bound carboxyl groups while carboxylate-ion endgroups are upright. C1s photoemission shows that SAMs formed and rinsed with acetic acid in ethanol, the endgroups are protonated, while without, a large fraction of the molecules on the surface are carboxylate terminated.},
doi = {},
url = {https://www.osti.gov/biblio/15013803}, journal = {Langmuir},
issn = {0743-7463},
number = 7,
volume = 20,
place = {United States},
year = {Tue Oct 21 00:00:00 EDT 2003},
month = {Tue Oct 21 00:00:00 EDT 2003}
}