Issue 14, 2011

Benzylidenehydrazine based room temperature columnar liquid crystals

Abstract

We report on the synthesis and investigation of self-assembly properties of new benzylidenehydrazine based compounds, namely N-(2,3,4-tridodecyloxybenzylidene)-3,4,5-N′-trialkoxybenzoylhydrazines. They were confirmed to exhibit wide ranges of room temperature hexagonal columnar liquid crystalline phases (Colh) as evidenced by optical polarizing microscope (OPM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD) studies. Helical organization was confirmed for the Colh* phase of a compound with chiral tails. More generally, combining the 2,3,4- and 3,4,5-substitution patterns of aromatic cores in one molecule provides a new way to low melting columnar LC materials with wide phase ranges.

Graphical abstract: Benzylidenehydrazine based room temperature columnar liquid crystals

Supplementary files

Article information

Article type
Paper
Submitted
09 Dec 2010
Accepted
21 Jan 2011
First published
22 Feb 2011

J. Mater. Chem., 2011,21, 5307-5311

Benzylidenehydrazine based room temperature columnar liquid crystals

G. Shanker, M. Prehm, C. V. Yelamaggad and C. Tschierske, J. Mater. Chem., 2011, 21, 5307 DOI: 10.1039/C0JM04301J

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