Please use this identifier to cite or link to this item:
Title: Dielectric studies on two isomeric cyano ester homologous series
Authors: Heppke, G.
Pfeiffer, S.
Nagabhushan, C.
Shashidhar, R.
Issue Date: May-1989
Publisher: Gordon and Breach Science Publishers.
Citation: Molecular Crystals and Liquid Crystals, 1989, Vol.170, p89-97
Abstract: We have studied the static dielectric permittivities of two homologous series of compounds, viz., 4-cyanophenyl 4'-n-alkoxybenzoates (CPnOB) and 4-n-alkoxyphenyl 4'-cyanobenzoates (nOPCB). These are biaromatic compounds with a terminal cyano group, but the ester linkages in the two series are oppositely disposed. For both series of compounds, the mean permittivity shows a jump at the nematic-isotropic transition that increases with increasing chain length. The pretransitional effects in the isotropic phases of the compounds CPnOB, wherein the longitudinal component of the dipole moment of the ester linkage is additive with regard to the cyano end-group, are found to be nearly one order of magnitude larger than those seen in the case of the nOPCB compounds.
Description: Restricted Access.
ISSN: 1058-725X
Alternative Location:
Copyright: 1989 OPA (Overseas Publishers Association) N.V.
Appears in Collections:Research Papers (SCM)

Files in This Item:
File Description SizeFormat 
1989 MCLC V170 p89.pdf
  Restricted Access
Restricted Access355.63 kBAdobe PDFView/Open Request a copy

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.