Perylenetetracarboxylic Diimide Derivatives Linked with Spirobifluorene

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• 作者：Yanan Du ; Lilin Jiang ; Jun Zhou ; Guiju Qi ; Xiyou Li ; Yanqiang Yang
• 刊名：Organic Letters
• 出版年：2012
• 出版时间：June 15, 2012
• 年：2012
• 卷：14
• 期：12
• 页码：3052-3055
• 全文大小：289K
• 年卷期：v.14,no.12(June 15, 2012)
• ISSN：1523-7052

文摘

A series of perylenetetracarboxylic diimide (PDI) compounds linked with spirobifluorene have been prepared. The orthogonal configuration of the PDI subunits efficiently hindered their molecular aggregation in solution. Energy transfer from a 1,7-diphenoxyl group substituted PDI (PO-PDI) to a 1,7-dipyrrolidinyl group substituted PDI (PY-PDI) occurred with a large efficiency when PO-PDI was selectively excited, despite the orthogonal orientation of the two units. This observation was in direct conflict with predictions derived from the F枚rster theory. More interestingly, this efficient energy transfer also occurred in the solid state.