Metalafion of Expanded Porphyrins:A Chemical Trigger Used To Produce Molecular Twisting and Mobius Aromaticity

摘要

The concept of Mobius aromaticity,a postulate that states that aromatic characteristics will be observed for[4n]annu-lenes lying in a twisted MQbius strip,is a time-honored concept that is fascinating from both the theoretical and experiment standpoints,since it provides a natural complement to the well-recognized idea of Hiickel aromaticity that governs the properties of planar[An+2]annulenes(Figure 1).