Unusual mesomorphic behaviour in bent-core compounds derived from 5-cyanoresorcinol

Reddy, Amaranatha R.; Sadashiva, B.K.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2904

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DC Field	Value	Language
dc.contributor.author	Reddy, Amaranatha R.	-
dc.contributor.author	Sadashiva, B.K.	-
dc.date.accessioned	2007-06-18T04:12:20Z	-
dc.date.available	2007-06-18T04:12:20Z	-
dc.date.issued	2004-08	-
dc.identifier.citation	Liquid Crystals, 2004, Vol.31, p1069 - 1081	en
dc.identifier.issn	0267-8292	-
dc.identifier.issn	1366-5855 (Online)	-
dc.identifier.uri	http://hdl.handle.net/2289/2904	-
dc.description	Restricted Access.	en
dc.description.abstract	We describe the synthesis and mesomorphic properties of the first two homologous series of bent-core compounds derived from 5-cyanoresorcinol. The lower homologues in both series show a normal B1 phase, and the mesophase of higher homologues exhibits very unusual textures and electro-optical switching behaviour. The observation of spiral growth patterns under a polarizing microscope, and only layer reflections from X-ray diffraction studies for these homologues, suggests that this mesophase is different from a B2 phase. This mesophase shows chiral domains of opposite handedness which can be identified from electric field experiments. Under a triangular-wave electric field, at lower voltages although the mesophase shows a ferroelectric type switching behaviour it is actually antiferroelectric in nature. The observation of helical structures and spontaneously formed chiral domains suggests that the mesophase is a variant of the B2 phase.	en
dc.format.extent	1167895 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Taylor & Francis	en
dc.relation.uri	http://dx.doi.org/10.1080/02678290410001723378	en
dc.rights	2004 Taylor & Francis	en
dc.title	Unusual mesomorphic behaviour in bent-core compounds derived from 5-cyanoresorcinol	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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