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Updated: May 24, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
Polyatomic anion assistance in the assembly of [2]pseudorotaxanes
Virginia Valderrey1, Eduardo C Escudero-Adán, Pablo Ballester
1Institute of Chemical Research of Catalonia, Avgda. Països Catalans 16, 43007 Tarragona, Spain.
Abstract:
We describe the use of polyatomic anions for the quantitative assembly of ion-paired complexes displaying pseudorotaxane topology. Our approach exploits the unique ion-pair recognition properties exhibited by noncovalent neutral receptors assembled through hydrogen-bonding interactions between a bis-calix[4]pyrrole macrocycle and linear bis-amidepyridyl-N-oxides. The complexation of bidentate polyatomic anions that are complementary in size and shape to the receptor's cavity, in which six NH hydrogen-bond donors converge, induces the exclusive formation of four particle-threaded assemblies.
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