Journal of Photochemistry and Photobiology A: Chemistry 355 (2018) 408–413 Contents lists available at ScienceDirect Journal of Photochemistry and Photobiology A: Chemistry journal home page : www.elsevier.com/locat e/jphotochem Invited paper Helicene derivatives containing aromatic imide moiety: Synthesis, structure, and photophysical properties a b, a,b, * * Meng Li , Hai-Yan Lu , Chuan-Feng Chen Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China University of Chinese Academy of Sciences, Beijing, 100049, China A R T I C L E I N F O A B S T R A C T Article history: Received 14 June 2017 A series of diaryl-substituted helicene derivatives containing aromatic imide moiety were effectively Received in revised form 19 July 2017 synthesized. From the single crystal of 3, obviously helical structure with a torsion angle of 65.4 was Accepted 20 July 2017 detected. Compared with their tetrahydrohelicene analogues, the helicene derivatives showed Available online 27 July 2017 longer absorption wavelength and larger molar absorptivity, which might be attributed to the large p-conjugated skeleton that was beneﬁcial to electron delocalization at ground state. Moreover, except for Keywords: 5k, long emission
Journal of Photochemistry and Photobiology A: Chemistry – Elsevier
Published: Mar 15, 2018
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