Last April, the first four-component pseudorotaxane complex reported by Pau Ballester‘s team was highlighted in JACS Spotlights. This week, the paper reaches the cover of JACS, including a Cover Art Podcast where you can listen to Pau Ballester talking about the paper and the cover art.

Hydrogen-bonding complementarity between a calix[4]pyrrole macrocycle and m-bis-amide-N-oxides induces the partial assembly of neutral interwoven receptors in which six hydrogen-bond donors converge, forming a cavity. Polyatomic anions recognize the receptor’s cavity, driving quantitatively the assembly of four-particle ion-paired complexes with pseudorotaxane topology.
You can see in the cover how those ‘polyatomic anions’ are looking for the receptors’ cavity.

Read the article that was highlighted by the Editors of JACS for the strength of its reviews, the novelty of the work and the anticipated impact of the research. You can also listen to Prof. Ballester’s explanation of the synthesis and potential applications of the novel four-component pseudorotaxane complex. He also talks about the meaning of the cover art designed by Virginia Valderrey, first author of the paper, assisted by Toni Stuckert, a German visiting student.

In Spain, the article was also highlighted by the national service of scientific news and information (SINC).