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Non-thermal dehydrogenation of carboxylic acids on metal surfaces
 Kugler, David ; Kolíbal, Miroslav (referee) ; Čechal, Jan (advisor)
Molecular self-assembly is the process of spontaneous arrangement basic adsorbate units into complex structures. Self-assembly systems could be used for atomically precise fabrication of functional nanostructures in the future. One of the possibilities to fabricate self-assembled molecular networks is to deposit the simple carboxylic acid molecules onto a clean metal substrate. The aim of this work is to describe the kinetics of the deprotonation process of 4,4´-biphenyldicarboxylic acid on Ag(100) due to CO exposure. A low-energy electron microscope was used to monitor phase transitions induced by changes in binding properties of molecules. The result of the work is a comprehensive view on the deprotonation process induced by exposure to CO. We found out that the deprotonation reaction depends on the shape and size of molecular islands, and we described the kinetics of individual phase transitions for different molecular coverages. We have also described the correlation between CO pressure and the rate of deprotonation.
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