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Additional info for Physical Properties of Liquid Crystals: Nematics

Example text

Liq. Cryst. 241] E. Bartmann, D. Dorsch, U. A. Kurmeier, E. J. Plach, E. Bartmann, E. Poetsch, S. Naemura, B. 13 ] Y. Goto, T. Ogawa, S. Sawada, S. Sugimori [ MoI. Cryst. Liq. Cryst. F. Petrov [ Liq. Cryst. 729 ] U. Finkenzeller, E. Poetsch, K. Tarumi [ presented at the 14th Int. Liquid Crystal Conf. Pisa, Italy, 1992, A-P94 ] M. Ushioda, M. Ushida, T. Suzuki [ Eur. Pat. Appl. T. Wu, D. Coates, E. Bartmann [ Liq. Cryst. 635 ] M. Petrzilka [ MoI. Cryst. Liq. Cryst. (UK) vol. A. Osman [ MoI. Cryst.

Dimethylene) separates two aromatic core units the liquid crystal phase stability is drastically reduced; compare compounds 7e and 18 [24]. However, if the same linking group does not separate two compatible cores then liquid crystalline phases are well supported; compare compounds 8 and 19 [25]. An ester linking group between two aromatic core units increases the molecular length and enhances the longitudinal polarisability and planarity and so increases the nematic phase stability despite the generation of broader molecules due to the zig-zag structure; compare compounds 7e and 20 [26].

Prakt. Chem. E. T. L. M. D'Sidock [ MoI. Ctyst. Liq. Cryst. 253] N. W. Gray [ MoI. Cryst. Liq. Cryst. 27 ] N. W. G. McDonnell [ MoI. Cryst. Liq. Cryst. 97 (1983) p. M. Kelly [ HeIv. Chim. W. Gray, A. Mosely [ MoI. Cryst. Liq. Cryst. A. Osman, T. Huynh-Ba [ MoI. Cryst. Liq. Cryst. 141 ] K. Praefcke, D. Schmidt, G. -Ztg. (Germany) vol. 269 ] H. Kelker, B. Scheurle [ Angew. , Int. Ed. Engl. A. Osman [ MoI. Cryst. Liq. Cryst. W. Gray, M. Hird, D. Lacey, KJ. Toyne [ J. Chem. Soc, Perkin Trans. 2041 ] S.

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