New [4]helicene derivatives: Synthesis, characterization and photophysical properties

被引：2
|
作者：
Hafedh, Nesrine [1 ]
Aloui, Faouzi [1 ]
Raouafi, Sondes [1 ]
Dorcet, Vincent [2 ]
Ben Hassine, Bechir [1 ]
机构：
[1] Univ Monastir, Fac Sci, Lab Asymmetr Organ Synth & Homogenous Catalysis U, Ave Environm, Monastir 5019, Tunisia
[2] Univ Rennes 1, CNRS, Inst Sci Chim Rennes, UMR 6226, Campus Beaulieu 263, F-35042 Rennes, France
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 262卷
关键词：
Helicenes; Photolysis; Cyclization; Photooxidation; Optical properties; POLYCYCLIC AROMATIC-HYDROCARBONS; REGION DIOL-EPOXIDES; FIELD-EFFECT TRANSISTORS; STRUCTURAL-PROPERTIES; CRYSTAL; BENZO(C)PHENANTHRENE; SEMICONDUCTORS; HELICENES;
D O I：
10.1016/j.molliq.2018.04.083
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The design and synthesis of new[4]helicene derivatives were carried out by incorporating well-defined electron donor and acceptor groups at selected positions of the aromatic nuclei, aiming to use them in optical applications. Helicenes have been obtained in good overall yields through a five-step sequence involving mild experimental conditions and easy purification. Photophysical properties of these tetracyclic systems have been evaluated by UV-visible absorption and fluorescence spectroscopies and an emission in the visible region was observed. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：310 / 316
页数：7
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