Halogen-Bonded Liquid Crystals

Carsten Präsang, Duncan W. Bruce*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review


While the halogen bond has been recognised and studied for over a hundred years, it is only in more recent times that chemists have begun to apply it and see its possibilities as another supramolecular interaction that can be deployed in the preparation of materials. This review takes one of those areas, liquid crystals, and considers examples of motifs that have been deployed successfully to generate new mesogens. In particular, rather than attempting to be comprehensive, the article reviews critically data from well-characterised systems and seeks to first make some comparisons with analogous hydrogen-bonded materials, before considering how the lability and flexibility of the halogen bond expresses itself in liquid crystal behaviour.

Original languageEnglish
Article numbere202300008
Number of pages25
Early online date20 Apr 2023
Publication statusE-pub ahead of print - 20 Apr 2023

Bibliographical note

Funding Information:
While the co‐workers who made and characterised the materials prepared in the group and contained herein are mentioned through the references, it is a pleasure to mention them here. Postdoctoral fellows: Huy‐Loc Nguyen and Carsten Präsang (co‐author); PhD/MSc students: Stephen Wainwright and Linda McAllister; UG students: Laila Roper and James Taylor; academic collaborator (computational studies): Peter Karadakov; crystallographer: Adrian Whitwood. We enjoyed a very productive collaboration with the Milan group, interacting in particular with: Gabriella Cavallo, Pierangelo Metrangolo (P. M.), Tullio Pilati, Giuseppe Resnati and Giancarlo Terraneo. Funding for our own work came from EPSRC (GR/N08391/01 and EP/C011295/1) and the University of York, while our collaboration with Milan was funded by RSC Grants for Authors (to P. M.) and the Royal Society (International Exchange Grant to D. W. B. and P. M.).

Publisher Copyright:
© 2023 The Authors. Helvetica Chimica Acta published by Wiley-VHCA AG, Zurich, Switzerland.


  • halogen bonds
  • hydrogen bonds
  • liquid crystals
  • supramolecular chemistry

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