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.
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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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Chemical transformations of self-assembled monolayers by low energy reactive ion beam bombardment
TL;DR: In this article, it is suggested that the surface modification involves the substitution of the ion/surface reaction sites with the appropriate reagent and that the extent of modification is limited to the top layers of the surface.
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