LIQUID-CRYSTALLINE COMPOUNDS

摘要

LIQUID-CRYSTALLINE COMPOUNDS OF THE FORMULA I R IS H, AN ALKYL OR ALKYL RADICAL, Z’ AND Z ARE EACH, INDEPENDENTLY OF ONE ANOTHER, -CH2CII2-, -CH=CH-, -&C- OR A SINGLE BOND, AND ONE OF THE RADICALS Z’ AND Z IS ALTERNATIVELY -(CH2)4 - OR -CH=CH-CH2CH2-, A IS TRANS-I, 4-CYCIOHEXYLENE IN WHICH, IN ADDITION. ONE OR IWO NON-ADJACENT CH2 GROUPS MAY BE REPLACED BY -0-, A’ IS TRANS-I, 4-CYCIOHEXYLENE IN WHICH, IN ADDITION, ONE OR TWO NON-ADJACENT CFI2 GROUPS MAY BE REPLACED BY -0-, A’ IS -1, 4-PHENYLENE WHICH IS UNSUBSTITUTED OR MONOSUBSTITUTED OR DISUBSTITUTED BY FLUORINE AND/OR C1 ATOMS AND IN WHICH, IN ADDITION, ONE OR TWO CH GROUPS MAY BE REPLACED BY N,M IS 0, 1,2 OR 3,O AND S ARE EACH 0, 1, OR 2, WHERE (S+O) IS ≥2, W IS -0-, Q IS A SINGLE BOND, R IS 1 TO 7,T IS 0 TO 7, AND Y IS F, CI, OCF3, CRF2, OR OCHF2, OR OCRE, AND CAN BE CF3, ARE SUITABLE AS COMPONENTS FOR LIQUID-CRYSTALLINE MEDIA.