Hydrogen Bond Interaction between Self-Assembled Monolayers and Adsorbed Water Molecules and Its Implications for Cluster Formation
1995 (English)In: Journal of Physical Chemistry B, ISSN 1520-6106, E-ISSN 1520-5207, Vol. 99, no 39, 14198-14200 p.Article in journal (Refereed) Published
Infrared spectroscopy is used to investigate the adsorption of D2O onto self-assembled monolayers of methyl 16-mercaptohexadecanoate on gold. The D2O molecules are shown to interact with the carbonyl oxygens of the monolayer, forming hydrogen bonds and causing a structural rearrangement of the CO2CH3 terminal group. The number of hydrogen bonds decreases as the amorphous-like, essentially flat (two-dimensional) ice overlayer that forms at 100 K changes into polycrystalline-like ice upon annealing at 140 K. This decrease is a consequence of the formation of three-dimensional ice clusters, which leaves a large fraction of the monolayer surface bare.
Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 1995. Vol. 99, no 39, 14198-14200 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-76342DOI: 10.1021/j100039a002ISI: A1995RX87500002OAI: oai:DiVA.org:liu-76342DiVA: diva2:513818