title: Spectroscopic fingerprints of amine and imide functional groups in self-assembled monolayers.
abstract: The electronic structures of naphthalene tetracarboxylic diimide (NTCDI) and 1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)benzene (BDG) monolayer assemblies grown on Au(111) are investigated by photoemission spectroscopy, X-ray absorption, and density functional theory. The different spectroscopic features in the absorption and core-level photoemission spectra are understood in terms of contributions from different core and molecular levels at N- and O-atom sites. This study provides clear spectroscopic fingerprints for amine and imide functional end groups, which drive the self-organization process in a number of planar, pi-conjugated molecular structures.
authors.affiliation: Departamento de Física Aplicada I, Universidad del País Vasco, Plaza de Oñate 2, 20018 Donostia-San Sebastián, Spain.
authors.forename: Miguel
authors.initials: M
authors.lastname: Ruiz-Osés
authors.forename: Thorsten
authors.initials: T
authors.lastname: Kampen
authors.forename: Nora
authors.initials: N
authors.lastname: González-Lakunza
authors.forename: Iñaki
authors.initials: I
authors.lastname: Silanes
authors.forename: Philipp M
authors.initials: PM
authors.lastname: Schmidt-Weber
authors.forename: André
authors.initials: A
authors.lastname: Gourdon
authors.forename: Andrés
authors.initials: A
authors.lastname: Arnau
authors.forename: Karsten
authors.initials: K
authors.lastname: Horn
authors.forename: J Enrique
authors.initials: JE
authors.lastname: Ortega