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Calamitic and discotic liquid crystalline phases for mesogens with triangular cores

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dc.abstract.enMesogenic 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. Appropriate substitution of such cores with various numbers of lateral chains (alkoxy, perfluorinated or polyether) leads to mesogens forming either lamellar (SmC), nematic or columnar (Colhd and Colho) phases. Some of the materials show an unusual phase sequence with a re-entrant isotropic phase appearing below the columnar (Colhd) phase; others form two columnar hexagonal phases with a weakly first order transition between them. Also a new columnar superstructure with p2gg symmetry (Colros) was found, in which the crystallographic lattice is decorated with a twomolecule motive.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPociecha, Damian
dc.contributor.authorKrówczyński, Adam
dc.contributor.authorSzydłowska, Jadwiga
dc.contributor.authorGórecka, Ewa
dc.date.accessioned2024-01-24T18:57:51Z
dc.date.available2024-01-24T18:57:51Z
dc.date.issued2019
dc.description.financeNie dotyczy
dc.description.number36
dc.description.volume15
dc.identifier.doi10.1039/C9SM01080G
dc.identifier.issn1744-683X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/102642
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofSoft Matter
dc.relation.pages7195-7202
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleCalamitic and discotic liquid crystalline phases for mesogens with triangular cores
dc.typeJournalArticle
dspace.entity.typePublication