Sulfate-induced large amplitude conformational change in a Solomon link.

A doubly-interlocked [2]catenane - or Solomon link - undergoes a complex conformational change upon addition of sulfate in methanol. This transformation generates a single pocket where two SO42- anions bind through multiple hydrogen bonds and electrostatic interactions. Despite the close proximity of the two anions, binding is highly cooperative.

Citation

Cuong Dat Do, Dávid Pál, Andrey Belyaev, Marion Pupier, Anniina Kiesilä, Elina Kalenius, Bartomeu Galmés, Antonio Frontera, Amalia Poblador-Bahamonde, Fabien B L Cougnon. Sulfate-induced large amplitude conformational change in a Solomon link. Chemical communications (Cambridge, England). 2023 Oct 31;59(87):13010-13013

PMID: 37830390

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