Jump to main content
Jump to site search


Calamitic and discotic liquid crystalline phases for mesogens based on triangular core

Abstract

Mesogenic compounds having new triangular mesogenic cores containing salicylaldimine and enaminocarbonyl or barbituric moieties have been synthesized and their liquid crystalline, dielectric and optical properties have been studied. Proper substitution of such cores with various number of latteral chains (alkoxy, perfluorinated or polyether) leads to mesogens forming either lamellar (SmC), nematic or columnar (Colhd, Colho) phases. Some of the materials show an unusual phase sequence with re-entrant isotropic phase appearing below columnar (Colhd) phase; other form two columnar hexagonal phases with weakly first order transtion between them. Also a new columnar superstructure with p2gg symmetry (Colros) was found, which crystallographic lattice is decorated by two-molecule motive.

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 May 2019, accepted on 12 Aug 2019 and first published on 14 Aug 2019


Article type: Paper
DOI: 10.1039/C9SM01080G
Soft Matter, 2019, Accepted Manuscript

  •   Request permissions

    Calamitic and discotic liquid crystalline phases for mesogens based on triangular core

    J. Szydlowska, A. Krowczynski, E. Gorecka and D. Pociecha, Soft Matter, 2019, Accepted Manuscript , DOI: 10.1039/C9SM01080G

Search articles by author

Spotlight

Advertisements