Title: Self-assembled 1,2-bis[4-(4-(10-decyloxy)phenylazo)]benzoylhydrazine dimer and its hydrogen-bonded complexes
Authors: Yeap, Guan-Yeow
Balamurugan, Subramanian
Rakesh, Samikannu
Han, Chun-Chieh
Lin, Hong-Cheu
Department of Materials Science and Engineering
Keywords: liquid crystalline;hydrogen bonding;supramolecular assembly;discotic columnar phase
Issue Date: 1-Jul-2013
Abstract: We report the synthesis and investigation of a new self-assembled benzoylhydrazine-based compound, namely 1,2-bis[4-(4-(10-decyloxy)phenylazo)]benzoylhydrazine and their hydrogen-bonded complexes with different carboxylic acid derivatives, of which some exhibit liquid crystalline properties and some are non-mesogens. The conversion of the non-liquid crystalline target compound that is free from carboxylic acid to liquid crystalline complexes containing various carboxylic acids can probably be rationalised through the breaking of intermolecular hydrogen bonding within the supramolecular assembly by carboxylic acid dopants. The enhancement of liquid crystalline properties of benzoylhydrazine compounds with respect to various carboxylic dopants is documented. Other salient features can be exemplified by the formation of discotic columnar phase as shown by the azo-linkage containing 4-(4-(10-decyloxy)phenylazo)benzoic acid-doped complex.
URI: http://dx.doi.org/10.1080/10610278.2013.792341
ISSN: 1061-0278
DOI: 10.1080/10610278.2013.792341
Volume: 25
Issue: 7
Begin Page: 424
End Page: 431
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