Synthesis, characterization, molecular modelling studies of a novel liquid crystal for use in laser-addressed displays

Authors

  • Larry R. Manuel Institute of Chemistry, University of the Philippines, Quezon City
  • Leonorina G. Cada Institute of Chemistry, University of the Philippines, Quezon City
  • Liang-chy Chien Liquid Crystal Institute, Kent State University, Kent, Ohio

DOI:

https://doi.org/10.26534/kimika.v19i2.91-96

Keywords:

liquid crystals, difluorinated terphenyls, smectic phases

Abstract

R-(+)- and S-(-)-2-octyl-[4"-decyloxy-3,3'-difluoro]-4-terphenylate (4-DDOT) were synthesized and characterized completely for possible use in laser-addressed displays. The pertinent structural features in this compound are the 3,3' positions of the lateral Fluorines in the ring and the respective donor- acceptor effect of the alkoxy terminal functionalities to extend aromatic conjugation [1]. A not so large Fluorine separation favors the formation of a Smectic A phase, the phase, which is desirable for the aforementioned type of displays [2].Spectroscopic techniques such as 1H NMR, 13C NMR, and FTIR were employed for structural determination. DSC (for determination of transition temperatures), OPM and X-ray (for mesophase identification) measurements were also done. These compounds were also subjected for polarimetric measurements. Cambridge and ACD lab Software molecular modeling program were employed for structural determination and theoretical comparison.

Downloads

Published

2003-12-01

How to Cite

Manuel, L. R., Cada, L. G., & Chien, L.- chy. (2003). Synthesis, characterization, molecular modelling studies of a novel liquid crystal for use in laser-addressed displays. KIMIKA, 19(2), 91–96. https://doi.org/10.26534/kimika.v19i2.91-96

Issue

Vol. 19 No. 2 (2003)

Section

Research Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).