Direct transition from a nematic phase to a polar biaxial smectic A phase in a homologous series of unsymmetrically substituted bent-core compounds

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3172

Title:	Direct transition from a nematic phase to a polar biaxial smectic A phase in a homologous series of unsymmetrically substituted bent-core compounds
Authors:	Reddy, Amaranatha R. Sadashiva, B.K.
Issue Date:	2004
Publisher:	Royal Society of Chemistry
Citation:	Journal of Materials Chemistry, 2004, Vol.14, p310 - 319
Abstract:	The synthesis and characterization of twenty seven new compounds belonging to three homologous series of compounds derived from 3-hydroxybenzoic acid are reported. One of the terminal positions of the constituent molecules of these compounds is substituted with a strongly polar cyano group while the other end contains an n-alkyl chain attached to a biphenyl moiety. Twenty two of these compounds show the polar partial bilayer biaxial smectic A phase which is antiferroelectric in nature. In addition, a direct transition from the nematic phase to the polar partial bilayer biaxial smectic A phase which has not been seen before is also reported. The mesophases have been characterized using polarized light optical microscopy, differential scanning calorimetry, X-ray diffraction studies and electro-optical experiments.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/3172
ISSN:	0959-9428 1364-5501 (Online)
Alternative Location:	http://dx.doi.org/10.1039/b309262c
Copyright:	2004 Royal Society of Chemistry
Appears in Collections:	Research Papers (SCM)

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