Smectic translational order parameter in two liquid crystalline compounds

Abstract

In this paper, we report translational order parameter in two liquid crystalline compounds, namely, p-cyanobenzylidene p-nonyloxyaniline and p-decyloxybenzylidene p-butylaniline at different temperatures in their smectic phase(s). Translational order parameter has been estimated using the recorded X-ray intensity data. The results obtained are compared and discussed.

Keywords:

• translational order parameter
• smectic phase
• X-ray diffraction
• p-cyanobenzylidene p-nonyloxyaniline
• p-decyloxybenzylidene p-butylaniline

Acknowledgements

Authors acknowledge Dr R. Pratibha, Mrs Deepa Bhat and Mrs K.N. Vasudha, Raman Research Institute (RRI), Bangalore, for their assistance in the collection of X-ray intensity data. N. Vinutha is grateful to the University Grants Commission (UGC), New Delhi for the award of RFSMS fellowship. M.K. Usha acknowledges the Department of Science and Technology (DST), New Delhi for the award of INSPIRE fellowship.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

R. Somashekar and D. Revannasiddaiah are thankful to the UGC for financial support under Major Research Project Scheme [F. No. 41-882/2012 (SR)] and UPE project.