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Open versus Interpenetrated: Switchable Supramolecular Trajectories in Mechanosynthesis of a Halogen-Bonded Borromean Network

  • Luca Catalano
  • , Luzia S. Germann
  • , Patrick A. Julien
  • , Mihails Arhangelskis
  • , Ivan Halasz
  • , Krunoslav Užarević
  • , Martin Etter
  • , Robert E. Dinnebier
  • , Maurizio Ursini
  • , Massimo Cametti
  • , Javier Martí-Rujas
  • , Tomislav Friščić*
  • , Pierangelo Metrangolo*
  • , Giuseppe Resnati
  • , Giancarlo Terraneo*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Precise control over topologically intricate molecular architectures remains an open challenge for chemists due to their inherent structural complexity. We report a simple solvent-free strategy to selectively prepare two multi-component supramolecular crystalline systems based on the halogen bond, endowed with either an unknot topology or a Borromean-type entanglement. Real-time in situ monitoring of the solvent-free mechanochemical synthesis of these three-component halogen-bonded ionic co-crystals reveals that the choice of milling conditions leads to a switch in the supramolecular reaction trajectory, resulting in the selective formation of an open halogen-bonded network or a halogen-bonded Borromean-type assembly.

Original languageEnglish
Pages (from-to)146-154
Number of pages9
JournalChem
Volume7
Issue number1
Early online date17 Nov 2020
DOIs
Publication statusPublished - 14 Jan 2021

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Inc.

Keywords

  • ball milling
  • borromean rings
  • crystal engineering
  • diiodoperfluoroalkanes
  • halogen bond
  • mechanochemistry
  • polymorph
  • SDG3: Good health and well-being
  • SDG7: Affordable and clean energy
  • SDG9: Industry, innovation, and infrastructure
  • self-assembly
  • solvent-free synthesis
  • supramolecular chemistry

ASJC Scopus subject areas

  • General Chemistry
  • Biochemistry
  • Environmental Chemistry
  • General Chemical Engineering
  • Biochemistry, medical
  • Materials Chemistry

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