The unusual physicochemical properties of azulene and azulene-based compounds

• Published in: Chinese chemical letters Vol. 30; no. 11; pp. 1903 - 1907
• Main Authors: Ou, Liang, Zhou, Yunyun, Wu, Bin, Zhu, Liangliang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-11-2019; State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
• Subjects: Anti-Kasha’s rule emission; Azulene; Photoelectrochemical; Photophysical; Synthetic strategy; Anti-Kasha’s rule emission; Azulene; Photophysical; Synthetic strategy; Photoelectrochemical; Anti-Kasha's rule emission
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2019.08.015

This review shows the unusual physicochemical properties and wide application of azulene and its derivatives. The recent synthesis strategies of kinds of substituted azulene are also listed.
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Azulene, an isomer of naphthalene, has become one of hot chemical structures in the research field of functional materials, due to its anti-Kasha’s rule emissions and unusual physicochemical properties (e.g., photophysical, electrochemical, and photoelectrochemical properties). In the past, the synthesis of azulene-based compounds is relatively inconvenient. Recently, there have been more and more reports about the synthesis strategies of the azulene-based compounds for finely tuning the physicochemical properties. In this article, we introduce several synthetic methods for kinds of azulene-based compounds which has unusual physicochemical properties. With these convenient methods and unique physicochemical properties, azulene-based compounds can be applied into many fields such as specific bioimaging, advanced molecular switches, organic field-effect transistor (OFET), organic light emitting diode (OLED), solar cells, and so forth. And these properties are also summarized here.