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Updated: Sep 30, 2025
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
Published on: May 25, 2016
Rubicene, an Unusual Contorted Core for Discotic Liquid Crystals
Irla Sivakumar1, K Swamynathan1,2, Dinesh Ram1
1Soft Condensed Matter, Raman Research Institute, C.V. Raman Avenue, Sadashivanagar, Bangalore, 560080, India.
Abstract:
Rubicene, an unusual contorted polycyclic aromatic hydrocarbon, was realized to function as a novel core fragment for discotic liquid crystals. The central π-conjugated motif was prepared from dialkoxyiodobenzene via Sonagashira coupling followed by pentannulation and Scholl cyclodehydrogenation. The synthesized rubicene derivatives were found to be thermally stable and exhibit enantiotropic columnar mesophases. The columnar arrangement of these derivatives has been validated using polarising optical microscopy, differential scanning calorimetry & small-angle X-ray scattering.
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