Frontispiece: Triarylborane‐Based Helical Donor–Acceptor Compounds: Synthesis, Photophysical, and Electronic Properties. Issue 46 (14th August 2019)

• Record Type: Journal Article
• Authors: Jia, Xiangqing; Nitsch, Jörn; Ji, Lei; Wu, Zhu; Friedrich, Alexandra; Kerner, Florian; Moos, Michael; Lambert, Christoph; Marder, Todd B.
• Is Part Of: Chemistry. Volume 25:Issue 46(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-08-14
• Subjects: boron -- charge transfer -- fluorescence -- helicenes -- luminescent; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201984663
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract : Triarylborane‐based helical D–π–A compounds have been prepared and their photophysical properties studied. These "push–pull" compounds have pronounced ICT transitions, and exhibit high quantum yields both in solution and in the solid state (up to 1.0), significantly larger than for unsubstituted helicenes. Upon excitation by UV light, the interplanar angle between the two terminal aryl rings of helicene core contracts in the excited S1 state compared with the S0 state, which is similar to a spring under an external force. For more detail, see the Full Paper by T. B. Marder et al. onpage 10845 ff.