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

页码：310 / 316

页数：7

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