Self-assembled monolayers of functional group-terminated molecules on Au [Elektronische Ressource] / by Jinxuan Liu

Self-assembled Monolayers of FunctionalGroup-terminated Molecules on AuDissertationbyJinxuan LiuFakultät für Chemie und BiochemieRuhr-Universität BochumDecember 2010Referees: Prof. Dr. Ch. WöllProf. Dr. R. A. FischerDate of Defense: 2010.12.10iDedicationiiAbstractThe purpose of this thesis was to investigate the structures of self-assembled mono-layers (SAMs) with functionalized end groups, e.g. pyridine, triptycene on Au sur-face. Another aim was to indentify the vibrational band of mercapto-group on Ausurface. Finally, adsorption properties of small molecules on metal-organic frame-work (MOF) thin films were examined.Various surface-analytical techniques, e.g. ultra-high vacuum-Infrared reflectionadsorption spectroscopy, x-ray photoelectron spectroscopy, near edge X-ray ab-sorption fine structure spectroscopy, scanning tunneling microscopy and thermaldesorption spectroscopy were applied.The main results of the thesis were that pyridine SAMs can be formed on Au sur-face with two dierent structures, which are almost perpendicular to Au surfacewith non-coplanar aromatic rings; MOF thin films are established as model systemto study adsorption properties of small molecules which can determine the chemi-cal or physical states of metals in MOFs.KeywordsSAMs, MOF thin films, pyridine, HKUST-1Das Ziel dieser Arbeit war die strukturelle Untersuchung von selbstorganisierendenMonoschichten (SAMs) mit funktionalisierten Endgruppen, z.B.