Molecular-Level Control over Surface Order in Self-Assembled Monolayer Films of Thiols on Gold
- 1 April 1988
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 240 (4848), 62-63
- https://doi.org/10.1126/science.240.4848.62
Abstract
Long-chain ωhydroxyalkanethiols [HS(CH2)nOH] coordinate to gold surfaces through the sulfur atom and produce ordered, hydrophilic monolayers in which the hydroxyl groups are exposed at the outer surface. Coadsorption of two ω-hydroxyalkanethiols of different chain lengths n resulted in the formation of a monolayer having a disordered surface region that was markedly less hydrophilic than the homogeneous, hydroxylic surface formed from either pure compound. By controlling the composition of the monolayer, it was also possible to control simultaneously the degree of order in the surface and its hydrophilicity. In the monolayers containing a mixture of alkanethiol components, these components apparently did not phase-segregate into macroscopic islands, but were dispersed on a molecular scale. assistance and many useful discussions.This publication has 9 references indexed in Scilit:
- Structures of self-assembled monolayer films of organosulfur compounds adsorbed on gold single crystals: electron diffraction studiesLangmuir, 1988
- Monolayer films prepared by the spontaneous self-assembly of symmetrical and unsymmetrical dialkyl sulfides from solution onto gold substrates: structure, properties, and reactivity of constituent functional groupsLangmuir, 1988
- Spontaneously organized molecular assemblies. 4. Structural characterization of n-alkyl thiol monolayers on gold by optical ellipsometry, infrared spectroscopy, and electrochemistryJournal of the American Chemical Society, 1987
- Blocking oriented monolayers of alkyl mercaptans on gold electrodesLangmuir, 1987
- Spontaneously organized molecular assemblies. 1. Formation, dynamics, and physical properties of n-alkanoic acids adsorbed from solution on an oxidized aluminum surfaceLangmuir, 1985
- Adsorption of bifunctional organic disulfides on gold surfacesJournal of the American Chemical Society, 1983
- Carbon-hydrogen stretching modes and the structure of n-alkyl chains. 1. Long, disordered chainsThe Journal of Physical Chemistry, 1982
- The Chemical Structure of Solid Surfaces as Deduced from Contact AnglesPublished by American Chemical Society (ACS) ,1964
- Hard and Soft Acids and BasesJournal of the American Chemical Society, 1963