EFFECT ON MESOMORPHIC PROPERTIES OF SUBSTITUTING A SULFUR FOR THE ETHER OXYGEN ATOM IN THE ESTER LINKAGE OF 4-ALKYLPHENYL-4 prime -ALKYL OR ALKOXYBENZOATES.

Article abstract of DOI:10.1080/00268948108074675

A variety of homologs of 4-alkylbenzenethio-4 prime -alkyl or alkoxybenzoates in which the 4 prime -alkoxy group is C//7-C//1//4, the 4 prime -alkyl group is C//7-C//1//4, the 4 prime -alkyl group is C//7-C//1//2 and the 4-alkyl group is C//5-C//8 or C//1//0 were prepared and their mesomorphic properties studied by microscopy, DSC and X-ray diffraction. A comparison is made of the mesomorphic properties in the thio- and oxy-esters and the effect on mesomorphic properties of replacing the ether oxygen atom in the ester linkage with a sulfur atom. The types of smectic phases observed are discussed; two apparently new biaxial smectic phases were found in the akoxy-alkyl series. Relationships between mesomorphic and thermodynamic properties with molecular structure are discussed.

Full text of DOI:10.1080/00268948108074675

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Molecular Crystals and Liquid
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The Effect on Mesomorphic
Properties of Substituting a
Sulfur for the Ether Oxygen
Atom in the Ester Linkage
of 4-Alkylphenyl-4′-Alkyl or
Alkoxybenzoates
Mary E. Neubert a , R. E. Cline a , M. J. Zawaski a
c , P. J. Wildman a & Arun Ekachai b d
a Liquid Crystal Institute, Kent State University ,
Kent, Ohio, 44242
b Liquid Crystal Institute and Department of
Physics
c Carlon, An Indian Head Company , Aurora,
Ohio
d Department of Physics , Prince of Songkla
University , Haad Yai, Thailand
Published online: 20 Apr 2011.
To cite this article: Mary E. Neubert , R. E. Cline , M. J. Zawaski , P. J. Wildman
& Arun Ekachai (1981) The Effect on Mesomorphic Properties of Substituting a
Sulfur for the Ether Oxygen Atom in the Ester Linkage of 4-Alkylphenyl-4′-Alkyl
or Alkoxybenzoates, Molecular Crystals and Liquid Crystals, 76:1-2, 43-77, DOI:
10.1080/00268948108074675
To link to this article: http://dx.doi.org/10.1080/00268948108074675
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