Bowlic mesogen

Pyramidal or bowlic mesogen - a mesogen composed of molecules derived from a semirigid conical core. 

Fig. 3. Demonstration of frustration in a hexagonal columnar structure in which bowlic mesogens have a head-to-tail arrangement and thereby create dipoles within each column. The triangular symmetry of the lattice will not allow the dipoles to organize into an antiferroelectric state and forces either a paraelectric or a ferroelectric state.

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