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Updated: Mar 12, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
The Dependency of Nematic and Twist-bend Mesophase Formation on Bend Angle
Richard J Mandle1, Craig T Archbold1, Julia P Sarju1
1Department of Chemistry, University of York, YO10 5DD, UK.
Abstract:
We have prepared and studied a family of cyanobiphenyl dimers with varying linking groups with a view to exploring how molecular structure dictates the stability of the nematic and twist-bend nematic mesophases. Using molecular modelling and 1D 1H NOESY NMR spectroscopy, we determine the angle between the two aromatic core units for each dimer and find a strong dependency of the stability of both the nematic and twist-bend mesophases upon this angle, thereby satisfying earlier theoretical models.
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