This presentation describes the synthesis of perfluorophenyl-terminated alkanethiols, C6F5(CH2)12SH and their hydrocarbon analogs, C6H5(CH2)12SH. These phenyl-terminated alkanethiols were used to generate self-assembled monolayers (SAMs) on gold surfaces. Taking advantage of phenyl-perfluorophenyl stacking interactions between the tailgroups, the extent of control over the interfacial wettability of binary interfaces derived from mixtures of the two types of adsorbates was examined. The SAMs were characterized using ellipsometry, X-ray photoelectron spectroscopy (XPS), polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS), and contact angle goniometry measurements. Furthermore, the series of mixed SAMs offered insight into the relationship between the interactions of molecular termini and the overall interfacial properties of the resulting interfaces.

Self-assembled monolayers derived from the adsorption of phenyl- and perfluorophenyl-terminated alkanethiols on gold

255th National Meeting (2018)

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