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The nematic phases of bent-core liquid crystals

Research output: Contribution to Journal/MagazineLiterature reviewpeer-review

  • Helen F. Gleeson
  • Sarabjot Kaur
  • Verena Görtz
  • Abdel Belaissaoui
  • Stephen J. Cowling
  • John W. Goodby
<mark>Journal publication date</mark>19/05/2014
Issue number7
Number of pages10
Pages (from-to)1251-1260
Publication StatusPublished
Early online date2/04/14
<mark>Original language</mark>English


Over the last ten years, the nematic phases of liquid crystals formed from bent-core structures have provoked considerable research because of their remarkable properties. This Minireview summarises some recent measurements of the physical properties of these systems, as well as describing some new data. We concentrate on oxadiazole-based materials as exemplars of this class of nematogens, but also describe some other bent-core systems. The influence of molecular structure on the stability of the nematic phase is described, together with progress in reducing the nematic transition temperatures by modifications to the molecular structure. The physical properties of bent-core nematic materials have proven difficult to study, but patterns are emerging regarding their optical and dielectric properties. Recent breakthroughs in understanding the elastic and flexoelectric behaviour are summarised. Finally, some exemplars of unusual electric field behaviour are described.