Occurrence of the B 7 mesophase in two homologous series of seven-ring achiral compounds composed of banana-shaped molecules

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Title:	Occurrence of the B 7 mesophase in two homologous series of seven-ring achiral compounds composed of banana-shaped molecules
Authors:	Reddy, Amaranatha R. Sadashiva, B.K.
Issue Date:	Mar-2003
Publisher:	Taylor & Francis
Citation:	Liquid Crystals, 2003, Vol.30, p273 - 283
Abstract:	The synthesis and mesomorphic behaviour of twenty compounds belonging to two new series of seven-ring esters derived from 2-cyanoresorcinol are reported. Many homologues of both series exhibit the B 7 mesophase. In addition, some of the lower homologues exhibit a mesophase which shows textural features similar to that of the two-dimensional B 1 phase. The characterization of the mesophases has been carried out using polarizing optical microscopy, differential scanning calorimetry, X-ray diffraction, miscibility studies and electro-optical investigations. The first example of a plot of the B 7 -isotropic phase transition temperature as a function of the alkyl chain length is also reported.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/2902
ISSN:	0267-8292 1366-5855 (Online)
Alternative Location:	http://dx.doi.org/10.1080/0267829031000071266
Copyright:	2003 Taylor & Francis
Appears in Collections:	Research Papers (SCM)

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