title: Syntheses and properties of thienyl-substituted dithienophenazines.
abstract: A series of dithienophenazines with different lengths of the oligomeric thiophene units (quaterthiophenes and sexithiophenes) was synthesized. The thiophene and phenazine units act as electron donors and acceptors, respectively, resulting in characteristic absorption spectra. The optical spectra were calculated using time-dependent density functional theory at the B3LYP/TZVP level and verify the experimental data. Adsorption of the dithienophenazines on highly ordered pyrolytic graphite (HOPG) was investigated by scanning tunneling microscopy, showing that one of the compounds forms highly organized self-assembled monolayers.
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany.
authors.forename: Annemarie
authors.initials: A
authors.lastname: Meyer
authors.forename: Eva
authors.initials: E
authors.lastname: Sigmund
authors.forename: Friedhelm
authors.initials: F
authors.lastname: Luppertz
authors.forename: Gregor
authors.initials: G
authors.lastname: Schnakenburg
authors.forename: Immanuel
authors.initials: I
authors.lastname: Gadaczek
authors.forename: Thomas
authors.initials: T
authors.lastname: Bredow
authors.forename: Stefan-S
authors.initials: SS
authors.lastname: Jester
authors.forename: Sigurd
authors.initials: S
authors.lastname: Höger