Novel zigzag-shaped compounds exhibiting apolar columnar mesophases with oblique and rectangular lattices |
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Authors: | S. Radhika M. Monika A. Roy |
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Affiliation: | Raman Research Institute, C. V. Raman Avenue , Sadashivanagar , Bangalore , India |
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Abstract: | The design, synthesis and characterisation of some compounds whose constituent molecules have a completely new shape have been carried out. A total of eight different series/part of series of these zigzag-shaped compounds that are either symmetrical or unsymmetrical were synthesised. Only two mesophases were observed, and on the basis of polarising optical microscopy, differential scanning calorimetry, X-ray diffraction and electro-optical studies, these have been characterised as columnar phases with a rectangular or an oblique lattice. Perhaps, these represent the first examples of a rigid zigzag-shaped compound exhibiting a mesophase. |
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Keywords: | zigzag-shaped columnar rectangular columnar oblique apolar |
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