Abstract

A triple-layered trisporphyrin molecule possessing two cleft cavities showed negative homotropic cooperativity in the host–guest complex. When an electron-deficient guest molecule (yellow) was accommodated within one of the cleft cavities, the electronic structure of the porphyrin was altered, and the binding power of the remaining cavity was reduced. More information can be found in the Research Article by T. Haino and co-workers (DOI: 10.1002/chem.202300107).

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