2023

Do, Cuong Dat; Pál, Dávid; Belyaev, Andrey; Pupier, Marion; Kiesilä, Anniina; Kalenius, Elina; Galmés, Bartomeu; Frontera, Antonio; Poblador-Bahamonde, Amalia; Cougnon, Fabien B. L.

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.