Design of Liquid Crystals with “de Vries-Like” Properties: Organosiloxane Mesogen with a 5-Phenylpyrimidine Core

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• 作者：Jeffrey C. Roberts ; Nadia Kapernaum ; Frank Giesselmann ; Robert P. Lemieux
• 刊名：Journal of the American Chemical Society
• 出版年：2008
• 出版时间：October 22, 2008
• 年：2008
• 卷：130
• 期：42
• 页码：13842-13843
• 全文大小：136K
• 年卷期：v.130,no.42(October 22, 2008)
• ISSN：1520-5126

文摘

According to a new design strategy for “de Vries-like” liquid crystal materials, we report the synthesis and characterization of an organosiloxane mesogen with a 5-phenylpyrimidine core that forms SmA and SmC liquid crystal phases. This new material is characterized by a maximum layer contraction of 1.2% upon SmA−SmC phase transition and is comparable to the best “de Vries-like” materials reported heretofore.