| Literature DB >> 27432760 |
Lei Ji1, Martin Haehnel1, Ivo Krummenacher1, Philipp Biegger2, Florian L Geyer2, Olena Tverskoy2, Manuel Schaffroth2, Jie Han3, Andreas Dreuw3, Todd B Marder4, Uwe H F Bunz5.
Abstract
The mono- and bis-reduction of 6,13-bis((triisopropylsilyl)ethynyl)quinoxalino[2,3-b]phenazine (1) with potassium anthracenide in THF is reported. Both the radical anion 1(.-) and the dianion 1(2-) were isolated and characterized by optical and structural (single-crystal X-ray diffraction) methods. Solutions of the radical anion 1(.-) were stable in air for several hours and characterized by EPR spectroscopy. Dianion 1(2-) is highly fluorescent and photostable.Entities:
Keywords: EPR spectroscopy; azapentacene; charge pinning; radical anions
Year: 2016 PMID： 27432760 DOI： 10.1002/anie.201603177
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336