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Layered Electron Acceptors by Dimerization of Acenes End‐ Capped with 1,2,5‐Thiadiazoles
Author(s) -
Xia Debin,
Guo Xin,
Chen Long,
Baumgarten Martin,
Keerthi Ashok,
Müllen Klaus
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201508361
Subject(s) - acene , intramolecular force , excimer , thiadiazoles , molecule , chemistry , electrochemistry , molecular wire , crystallography , electron acceptor , photochemistry , materials science , stereochemistry , electrode , organic chemistry , optics , fluorescence , physics
Layered electron acceptors D1 – 4 equipped with terminal 1,2,5‐thiadiazole groups have been constructed using a one‐pot protocol of acene dimerization. Their molecular structures are determined using single‐crystal X‐ray diffraction analysis. Photophysical and electrochemical properties of these molecules present a marked dependence on conjugation length and molecular geometry. An aggregation‐induced emission peak and an intramolecular excimer emission (IEE) band were observed for D2 and D4 , respectively. This work paves the way for the efficient synthesis of layered heteroacenes.
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