4.8 Article

Solid-State Conformational Flexibility at Work: Zipping and Unzipping within a Cyclic Peptoid Single Crystal

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 15, Pages 4679-4682

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201511053

Keywords

crystal engineering; host-guest systems; noncovalent interactions; peptoids; supramolecular chemistry

Funding

  1. European Union [PIRSES-GA-2012-319011]
  2. University of Salerno (FARB)
  3. Italian MIUR [PRIN 20109Z2XRJ_006]

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A peptidomimetic compound undergoes a reversible single-crystal-to-single-crystal transformation upon guest release/uptake with the transformation involving a drastic conformational change. The extensive and reversible alteration in the solid state is connected to the formation of an unprecedented CH- zipper which can reversibly open and close (through the formation of CH- interactions), thus allowing for guest sensing.

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