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Title: Molecular flexibility and orientational statistics in liquid crystals: Raman study of 7-CB and 8-OCB
Authors: Prasad, S.N.
Venugopalan, S.
Issue Date: 15-Sep-1981
Publisher: The American Institute of Physics
Citation: Journal of Chemical Physics, 1981, Vol.75, p3033-3036
Abstract: The Raman depolarization ratios of the –C[equivalent]N vibrational band of 7-CB and 8-OCB have been measured in the aligned liquid crystal and isotropic phases. The temperature dependence of the absolute orientational order parameters <P2> and <P4> have been evaluated for the mesophases of both compounds. A comparison of their <P4> values in the nematic phase with those determined by Miyano for 5-CB suggests that molecular flexibility is an importnant factor that serves to lower <P4> well below the predictions of mean field theories.
ISSN: 0021-9606
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Copyright: (1981) by the American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Appears in Collections:Research Papers (SCM)

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