title: Synthesis and photophysical properties of expanded dehydrobenzoannulenoannulene trefoils.
abstract: A sequential Sonogashira cross-coupling/Pd-mediated oxidative homocoupling strategy affords two-dimensional dehydrobenzoannulene trefoils containing different sizes of the central annulenic ring system. Use of these conditions instead of Cu-mediated homocoupling conditions yields a structural isomer possessing a triphenylene ([6]annulene) core. Noticeable differences in the absorption and emission spectra are observed depending upon the core unit.
authors.affiliation: Department of Chemistry and Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253, USA.
authors.forename: Takashi
authors.initials: T
authors.lastname: Takeda
authors.forename: Aaron G
authors.initials: AG
authors.lastname: Fix
authors.forename: Michael M
authors.initials: MM
authors.lastname: Haley