The Dependency of Nematic and Twist-bend Mesophase Formation on Bend Angle.
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 1D1H 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.
Department of Chemistry, University of York, YO10 5DD, UK.
Richard J
RJ
Mandle
Department of Chemistry, University of York, YO10 5DD, UK.
Craig T
CT
Archbold
Department of Chemistry, University of York, YO10 5DD, UK.
Julia P
JP
Sarju
Department of Chemistry, University of York, YO10 5DD, UK.
Jessica L
JL
Andrews
Department of Chemistry, University of York, YO10 5DD, UK.
John W
JW
Goodby