title: Oligoindenopyrenes: a new class of polycyclic aromatics.
abstract: A new class of polycyclic aromatic hydrocarbons--oligoindenopyrenes--has been synthesized featuring a Pd-catalyzed Suzuki-Heck coupling cascade. The oligoindenopyrenes are robust, highly colored substructures of C(70) and have properties that might prove useful in new organic materials or devices. After excitation, the tetraindenopyrene derivative 3d undergoes efficient deactivation (99%) by internal conversion to the ground state. The small fluorescence quantum yield (0.004) is in accordance with the short (0.6 ns) fluorescence decay time.
authors.affiliation: Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
authors.forename: Hermann A
authors.initials: HA
authors.lastname: Wegner
authors.forename: Helge
authors.initials: H
authors.lastname: Reisch
authors.forename: Karsten
authors.initials: K
authors.lastname: Rauch
authors.forename: Attila
authors.initials: A
authors.lastname: Demeter
authors.forename: Klaas A
authors.initials: KA
authors.lastname: Zachariasse
authors.forename: Armin de
authors.initials: Ad
authors.lastname: Meijere
authors.forename: Lawrence T
authors.initials: LT
authors.lastname: Scott
mesh_terms: D005453:Fluorescence; D009682:Magnetic Resonance Spectroscopy; D011721:Pyrenes / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D011721:Pyrenes