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3 December 2003 New chiral mesogens 3(R)-methylcyclohexanone derivatives
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New chiral compounds 3R-methylcyclohexanone derivatives were synthesized. These compounds were revealed to exhibit the mesomorphic behavior within rather wide temperature ranges. Types of formed mesophases and phase transition temperatures were determined by polarizing microscopy, differential scanning calorimetry and small angle scattering of X-ray. Mesomorphic properties of the new chiral compounds were compared with those for the chiral 2-arylidene derivatives of 3R,6R-3-methyl-6-isopropylcyclohexanone (d-isomenthone) studied earlier. Distinctions between these two types of compounds in an ability to form mesophases and also in twisting properties as chiral dopants in induced cholesteric mesophases are considered.
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A. I. Krivoshey, Lidiya A. Kutulya, Valery V. Vashchenko, Mikhail N. Pivnenko, N. S. Pivnenko, Anatoliy S. Tolochko, Viktor I. Kulishov, and Natalya I. Shkolnikova "New chiral mesogens 3(R)-methylcyclohexanone derivatives", Proc. SPIE 5257, Ninth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, (3 December 2003);

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