Trapping of molecules in alkanethiol self-assembled monolayer matrices
TLDR
In this article, a self-assembled monolayer (SAM) surfaces were used as a matrices to preserve species in the presence of NH+4 in water solutions with octadecanethiol.Abstract:
Reactions of NH+ 4 in water solutions with self-assembled monolayer (SAM) surfaces result in the deposition of ammonia in the monolayers. Similarities between this and the soft landing of ions seen in low energy gas phase ion—surface collisions suggest that monolayers can be used as matrices to preserve species. Ammonia can be incorporated only into thicker SAMs such as those made from octadecanethiol. Reactions with larger ions do not lead to trapping. Trapped ammonia desorbs during prolonged exposure of the SAMs to vacuum.read more
Citations
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Melting of monolayer protected cluster superlattices
TL;DR: In this article, the melting properties of octadecanethiol and octanethiol protected silver clusters were studied with x-ray powder diffraction (XRD), differential scanning calorimetry (DSC), and infrared (IR) spectroscopy.
Journal ArticleDOI
Trapping of V(benzene)2 sandwich clusters in a n-alkanethiol self-assembled monolayer matrix
TL;DR: In this article, the thermal chemistry of the neutralized sandwich cluster cations on each substrate was studied with temperature programmed desorption (TPDP) and it was determined that the activation energies of the deposited clusters are incorporated into the SAM matrix and firmly trapped inside the alkyl chains of the SAM.
Journal ArticleDOI
Ion/Surface Reactions at Monolayers in Solution: A Combined Surface Enhanced Raman-X-Ray Photoelectron Spectroscopic Investigation of the Chemical Modification of a 2-Mercaptobenzothiazole Monolayer on Polycrystalline Au Films.
TL;DR: The results suggest that modified monolayers can be made by simple electrochemical procedures and the processes are similar to the corresponding gas-phase events.
References
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Journal ArticleDOI
Formation of monolayer films by the spontaneous assembly of organic thiols from solution onto gold
Colin D. Bain,E. Barry Troughton,Yu-Tai Tao,Joseph Evall,George M. Whitesides,Ralph G. Nuzzo +5 more
TL;DR: In this paper, the authors used contact angles and optical ellipsometry to study the kinetics of adsorption of monolayer films and to examine the experimental conditions necessary for the formation of high-quality films.
Journal ArticleDOI
Spontaneously organized molecular assemblies. 4. Structural characterization of n-alkyl thiol monolayers on gold by optical ellipsometry, infrared spectroscopy, and electrochemistry
Book
An Introduction to Ultrathin Organic Films: From Langmuir--Blodgett to Self--Assembly
TL;DR: In this paper, the authors present a model of self-assembled monolayers for the analysis of surface properties of Langmuir-Blodgett (LB) and Self-Assembled Monolayers (SA) films.
Journal ArticleDOI
Coadsorption of ferrocene-terminated and unsubstituted alkanethiols on gold: electroactive self-assembled monolayers
TL;DR: In this paper, a self-assembled monolayer with low concentrations of alkanethiols linked to ferrocene by a polar ester group (FcCO{sub 2}(CH{sub n}SH, Fc = ({eta}{sup 5}-C{sub 5}H{sub 4}Fe }) showed thermodynamically ideal surface electrochemistry.
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