Ordering properties of columnar discotic triazines containing three pendant triphenylenes with four or five fluorinated trials

C.P. Umesh, A.T.M. Marcelis, H. Zuilhof

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Two series of discotic columnar liquid crystals were prepared and investigated, consisting of a triazine core to which three triphenylenes (HATs) are attached, connected via a flexible variable spacer containing a triazole group. The triphenylenes have five pentafluoropentyloxy tails or four pentafluoropentyloxy tails and one methoxy group. The compounds with four fluorinated tails on the HAT groups show a lamellar-columnar phase (Collam), whereas a compound with five fluorinated tails on the HAT groups shows a hexagonal-columnar (Colh) phase. Small differences in the steric properties and fluorophobic effects can therefore have a strong influence on the ordering of the molecules in the liquid crystalline phase.
Original languageEnglish
Pages (from-to)1450-1459
JournalLiquid Crystals
Volume42
Issue number10
DOIs
Publication statusPublished - 2015

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