Labile species, encapsulation

The same approach can be applied to organic chemistry where very labile species can be encapsulated. In this way, species that usually would rapidly decompose or polymerize even at low temperatures can be stored at room temperature, especially when the guest has no chance to escape from its host. To achieve this goal, hemicarcerands have been mostly used, leading to the preparation of cages containing highly reactive species such as 1,3-cyclobutadiene, cycloheptatetraene, or benzyne. This subject is presented in detail in a specially dedicated chapter (Reactions inside Carcerands, Ralf Warmuth). 

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