Are different B (boron)–π–N (nitrogen) embedded patterns resulting in different (opto)electronic properties for the same macrocyclic molecular backbone? To address this question, a series of B–π–N embedded alternate‐meta‐para‐linked cyclophanes 1–3 have been prepared and characterized as a new class of ambipolar π‐conjugated B–π–N macrocycles. The answer to the opening question was found to be yes. The results revealed an intramolecular charge transfer in the oxidized states of the macrocycles and intriguing photophysical properties in accordance with the embedded patterns, suggesting that the electronic structures are tunable by introducing multiple B–π–N moieties. More information can be found in the Communication by Akihiro Ito, Hiroyuki Fueno et al. on page 754 in Issue 7, 2018 (DOI:10.1002/asia.201701717).

中文翻译：

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封面：Diazadibora [1.1.1.1] m，p，m，p-环环烷：具有不同B–π–N嵌入模式的双极共轭大环化合物（Chem。Asian J. 7/2018）

对于相同的大环分子主链，不同的B（硼）–π–N（氮）嵌入模式是否会导致不同的（光电）电子性质？为了解决这个问题，嵌入后复用的一系列B-π-N间-对位-连接的环芳1 - 3已经被制备并表征为一类新的双极性π共轭B–π–N大环。答案是肯定的。结果揭示了分子内电荷在大环的氧化态下转移，并根据嵌入的模式吸引了光物理性质，这表明通过引入多个B–π–N部分可以调节电子结构。有关更多信息，请参见伊藤明弘（Akihiro Ito），丰野裕之（Hiroyuki Fueno）等人的通讯。就在第7期，2018页754（：10.1002 / asia.201701717 DOI）。