A Covalently Linked Tetracene Trimer: Synthesis and Singlet Exciton Fission Property

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• 作者：Heyuan Liu ; Rui Wang ; Li Shen ; Yanqing Xu ; Min Xiao ; Chunfeng Zhang ; Xiyou Li
• 刊名：Organic Letters
• 出版年：2017
• 出版时间：February 3, 2017
• 年：2017
• 卷：19
• 期：3
• 页码：580-583
• 全文大小：351K
• ISSN：1523-7052

文摘

A linear tetracene trimer linked by phenyl groups has been prepared for the first time. The triplet quantum yield formed via intramolecular singlet fission can reach up to 96% in this trimer, which is enhanced significantly compared with that in the dimer. This can be attributed to the stronger electronic coupling between tetracene subunits and more delocalized excitons in the trimer.