We present here a new family of hybrid rylene arrays (3a–d) by the combination of Stille coupling and C–H transformation via a facile one-pot synthesis. The π-expanded rylene diimides exhibit broadened and intensive optical absorption accompanied by higher electron affinity. The linear alkyl chain substituted NDI-diPDI-NDI (3b) revealed its electron transporting characteristics with good air stability and low threshold voltage.
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Li et al. (2013) studied this question.
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