Beilstein J. Org. Chem.2014,10, 794–807, doi:10.3762/bjoc.10.75
dielectric measurements. The dielectric spectroscopy data are unique and presented for the first time in the SmCGphase providing new information about the molecular dynamics.
Keywords: bent-shaped; biphenyl core; liquid crystals; mesomorphic behaviour; SmCGphase; Introduction
Achiral bent-shaped liquid
with change of the structural chirality is detected more often [39][40][41].
Bent-shaped molecules rarely form a lamellar phase with a triclinic symmetry C1 called general tilt smectics, SmCG [42][43][44][45]. The molecules in the SmCGphase are tilted in such a way that the polarization vector has its
freedom for building the bilayer structure–polarization vectors in consecutive layers can be synleaning or antileaning. Only few experimental studies have been reported regarding the realization of the SmCGphase in bent-shaped molecules [12].
From the above mentioned it follows that bent-shaped mesogens
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Graphical Abstract
Figure 1:
Structure of the central cores and lengthening arms.