Paper Title:
Optical Properties and Electronic Structures of a Liquid Crystal TBO10A
  Abstract

A liquid crystal (LC) N,N-(terephthalylidene) bis (4-octyloxyaniline) (TBO10A) was synthesized at room temperature. The LC TBO10A were investigated by differential scanning calorimetry (DSC), polarizing optical microscopy (POM), ultraviolet-visible spectrophotometry, photoluminecence (PL) spectroscopy and electronic structure calculations. In tetrahydrofuran solutions, two optical absorption bands were recorded for TBO10A at about 298 and 379 nm, respectively. Under the 325 nm excitation, dilute tetrahydrofuran solutions of the TBO10A can give off weak blue PL. With Hückel tight-binding method, the electronic structures of the TBO10A were calculated. Our results demonstrated that two absorptions can be attributed to the π→π* and nπ* transitions in the rigid core of the TBO10A while the PL observed at about 481 nm (2.58 eV) can be assigned to the π* →n transition.

  Info
Periodical
Solid State Phenomena (Volumes 181-182)
Chapter
I. Physics of Liquid Crystals
Edited by
Yuan Ming Huang
Pages
110-114
DOI
10.4028/www.scientific.net/SSP.181-182.110
Citation
Y. M. Huang, Q. L. Ma, B. G. Zhai, "Optical Properties and Electronic Structures of a Liquid Crystal TBO10A", Solid State Phenomena, Vols. 181-182, pp. 110-114, 2012
Online since
November 2011
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Price
$32.00
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