95906-30-2Relevant academic research and scientific papers
Liquid crystals
-
, (2008/06/13)
Compounds of the formula STR1 wherein n stands for the number 0 or 1; the rings A1, A2 and A3 represent 1,4-phenylene, 2-fluoro-1,4-phenylene or trans-1,4-cyclohexylene or one of these rings also represents a 2,5-disubstituted pyrimidine ring or a trans-2,5-disubstituted m-dioxane ring; X1 represents a single covalent bond, --COO--, --OOC--, --CH2 CH2 --, p--C6 H4 --, --CH2 CH2 --p-- C6 H4 --, --CH2 CH2 --p--C6 H4 --CH2 CH2 -- or, insofar as the rings A1 and A2 represent 1,4-phenylene, also --NON--; R2 represents 1E-alkenyl, 2Z-alkenyl, 3E-alkenyl, 4-alkenyl or alkenyloxy, with the proviso that the oxygen atom in alkenyloxy is linked with a saturated carbon atom; and R1 signifies 1E-alkenyl, 2Z-alkenyl, 3E-alkenyl, 4-alkenyl or, insofar as R2 represents alkenyloxy, also alkyl, their manufacture, as well as liquid crystalline mixtures and the use for electro-optical purposes.
Novel liquid crystal mixtures
-
, (2008/06/13)
Liquid crystalline mixtures containing compounds of the formula STR1 wherein n stands for the number 0 or 1; X1 and X2 denote single covalent bonds or one of the symbols X1 and X2 also denotes --COO--, --OOC-- or --CH2 CH2 --; the rings A1, A2 and A3 represent 1,4-phenylene, 2-fluoro-1,4-phenylene or trans-1,4-cyclohexylene or one of these rings also represents a 2,5-disubstituted pyrimidine ring or a trans-2,5-disubstituted m-dioxane ring; R1 signifies 4-alkenyl or on a cyclohexyl ring also 2Z-alkenyl; and R2 denotes alkyl, alkoxy, --CN or --NCS, as well as the manufacture of these compounds and the use for electro-optical purposes are described.
New Liquid Crystals: The Synthesis and Mesomorphic Properties of Nematic Alkenylsubstituted Cyanophenylcyclohexanes
Petrzilka, Martin
, p. 109 - 124 (2007/10/02)
18 Alkenylsubstituted cyanophenylcyclohexanes have been synthesized by systematically varying both the position and the configuration of the isolated C,C-double bond.The influences of such structural changes on the mesomorphic properties are discussed and
