Abstract:Substance containing two π-congested aromatic systems are attractive targets in synthetic studies as well as efforts designed to explore the unique properties that originate from π-congestion. Since the time of the computational studies by Schleyer and Warner, the concept of stacked 3D aromaticity created by the encounter of two antiaromatic rings has received much attention. In contrast, questions about what happens when two aromatic rings are closely stacked have remained unanswered. To the best of our knowl… Show more
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