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Title: Thermotropic Uniaxial and Biaxial Nematic and Smectic Phases in Bent-Core Mesogens
Authors: Prasad, Veena
Kang, Shin-Woong
Suresh, K.A.
Joshi, Leela
Wang, Qingbing
Kumar, Satyendra
Issue Date: 2005
Publisher: American Chemical Society
Citation: Journal of the American Chemical Society, 2005, Vol.127, 17224-17227
Abstract: Two azo substituted achiral bent-core mesogens have been synthesized. Optical polarizing microscopy and synchrotron X-ray scattering studies of both compounds reveal the existence of the thermotropic uniaxial and biaxial nematic and three smectic phases at different temperatures in these single component small molecule systems. The transition from the uniaxial to biaxial nematic phase is confirmed to be second order. The transitions from the biaxial nematic to the underlying smectic phase and between the smectic phases have barely discernible heat capacity signatures and thus are also second order.
Description: Restricted Access.
ISSN: 0002-7863
1520-5126 (Online)
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Copyright: 2005 American Chemical Society
Appears in Collections:Research Papers (SCM)

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