Infrared electroabsorption spectroscopic study of association structures of 5CB in the solution, isotropic liquid and nematic liquid crystal states

Young Kun Min, Hirotsugu Hiramatsu, Hiro o. Hamaguchi*

*Corresponding author for this work

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

The association structures of 4-n-pentyl-4'-cyanobiphenyl (5CB) in the solution, isotropic liquid, and nematic liquid crystal states have been studied by infrared electroabsorption spectroscopy. In a 0.5 mol dm-3 carbon tetrachloride solution, the determined value of dipole moment of 5CB (4.9D) agrees excellently with a literature value (4.85D) for monomer, indicating that the 5CB molecule exist as a monomer. Monomeric response of the 5CB molecule to the external field has also been found for the isotropic liquid state. For the nematic phase, marked deviation from the monomeric response has been found, showing the domain formation of the 5CB molecules. The size dependence of the domain response to the applied electric field has also been elucidated.

原文English
頁(從 - 到)68-69
頁數2
期刊Chemistry Letters
發行號1
DOIs
出版狀態Published - 5 一月 2002

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