摘要:
Triphenylene derivatives of the formula I ##STR1## wherein X.sup.1 to X.sup.6 are each, independently of one another, --SH, --SR, --SOR, --SO.sub.2 R or --S--COR, and each R is an alkyl group with up to 20 C atoms, it being possible for one or two CH.sub.2 groups to be replaced by O atoms and/or by unsubstituted or substituted vinylene or vinylidene groups, may be used as components of discotic liquid-crystalline phases.
摘要:
Carbocyclic compounds of the formula I ##STR1## wherein Q is a benzene or cyclohexane ring or a naphthalene system, X is in each case --CH.sub.2 --(CH.sub.2).sub.p -- where it is also possible for one or two non-adjacent CH.sub.2 groups to be replaced by --O--, --S--, --CO--, --O--CO--, --CO--O-- or --CH.dbd.CH--,p is 0, 1 or 2,A.sup.1 and A.sup.2 independently of one another are each a 1,4-phenylene group which is unsubstituted or monosubstituted or polysubstituted by halogen atoms and/or CH.sub.3 groups and/or CN groups and in which it would also be possible for one or more CH groups to be replaced by N atoms, a 1,4-cyclohexylene group wherein it would also be possible for one or two non-adjacent CH.sub.2 groups to be replaced by --O-- and/or --S--, a piperidine-1,4-diyl group or a 1,4-bicyclo[2.2.2]octylene group,Z is --CO--O--, --O--CO--, --O--, --CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CHCN--CH.sub.2 --, --CH.sub.2 --CHCN--, --CH.dbd.CH--, --CH.dbd.N--, --N.dbd.CH--, --NO.dbd.N--, --N.dbd.NO-- or a single bond,n is 0, 1 or 2 andR is alkyl having 1 to 20 C atoms wherein it would also be possible for one or more non-adjacent CH.sub.2 groups to be replaced by --O--, --CO--, --O--CO--, --CO--O-- or --CH.dbd.CH--, H, F, Cl, Br, I, OH, NH.sub.2, COOH or CN,m being 6 in the event that Q=benzene or cyclohexane and being 8 in the event that Q=naphthalene, subject to the proviso that, in the event that X=--OCH.sub.2 -- and --(A.sup.1 --Z).sub.n --A.sup.2 --R=p-alkoxyphenyl, Q is a cyclohexane ring, are suitable for use as components of discotic, liquid-crystal phases.
摘要:
Carbocyclic compounds of the formula I ##STR1## wherein Q is a benzene or cyclohexane ring or a naphthalene system,X is in each case --CH.sub.2 --(CH.sub.2).sub.p -- wherein it is also possible for one or two non-adjacent CH.sub.2 groups to be replaced by --O--, --S--, --CO--, --O--CO--, --CO--O-- or --CH.dbd.CH--,p is 0, 1 or 2,A.sup.1 and A.sup.2 independently of one another are each a 1,4-phenylene group which is unsubstituted or monosubstituted or polysubstituted by halogen atoms and/or CH.sub.3 groups and/or CN groups and in which it would also be possible for one or more CH groups to be replaced by N atoms, a 1,4-cyclohexylene group wherein it would also be possible for one or two non-adjacent CH.sub.2 groups to be replaced by --O-- and/or --S--, a piperidine-1,4-diyl group or a 1,4-bicyclo[2.2.2]octylene group,Z is --CO--O--, --O--CO--, --O--, --CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CHCN--CH.sub.2 --, --CH.sub.2 --CHCN--, --CH.dbd.CH--, --CH.dbd.N--, --N.dbd.CH--, --NO.dbd.N--, --N.dbd.NO-- or a single bond,n is 0, 1 or 2 andR is alkyl having 1 to 20 C atoms wherein it would also be possible for one or more non-adjacent CH.sub.2 groups to be replaced by --O--, --CO--, --O--CO--, --CO--O-- or --CH.dbd.CH--, H, F, Cl, Br, I, OH, NH.sub.2, COOH or CN,m being 6 in the event that Q=benzene or cyclohexane and being 8 in the event that Q=naphthalene, subject to the proviso that, in the event that X=--OCH.sub.2 -- and --(A.sup.1 --Z).sub.n --A.sup.2 --R=p-alkoxyphenyl, Q is a cyclohexane ring, are suitable for use as components of discotic, liquid-crystal phases.
摘要:
Polymer compositions exhibiting liquid-crystalline phases contain chemically bonded mesogenic groups of the formula Ia and/or Ib: ##STR1## in which Q.sup.1 is H, alkyl or alkoxy having 1-5 C atoms, F, Cl, Br or CN,X.sup.1 to X.sup.5 each, independently of one another, are H or an alkyl group having up to 15 C atoms, in which it is also possible for one or two non-adjacent CH.sub.2 groups to be replaced by a group from the group comprising --O--, --S--, --O--CO--O--, O--CO--NH--, --CO--, --CO--O--, --CO--S--, --S--CO--, --SO-- and --SO.sub.2 --.Process for the preparation of polymer compositions of this type comprises the polymerization or grafting of suitable monomers.Polymer compositions of this type are used as substrates in electronics for the fiber and foil techniques.
摘要:
The invention relates to novel dioxane derivatives of the formula R1-(A1-Z1)mG-(Z2-A2)n-R2, in which G denotes (I) or (II), and in which R1, R2, A1, A2, Z1, Z2, m and n have the meanings indicated in claim 1, to the use thereof as component(s) of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.
摘要:
The present invention relates to chromane derivatives of the general formula I and of the general formula (II) and chromene derivatives of the general formulae (III) and (IV) and chromene derivatives of the general formulae (V) and (VI) in which R1, R2, A1, A2, Z1, Z2, L1, L2, L3, L4, m and n have the meanings indicated in Claim 1 in relation to the respective formulae, to a process for the preparation thereof, to the use thereof as component(s) in liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.
摘要翻译:本发明涉及通式Ⅰ和通式(Ⅱ)的苯并二氢吡喃衍生物和通式(Ⅲ)和(Ⅳ)的色烯衍生物和通式(Ⅴ)和(Ⅵ)的色烯衍生物,其中 R 1,R 2,A 1,A 2,Z 1, Z 2,L 1,L 2,L 3,L 4, m和n具有权利要求1中关于各式的含义,其制备方法,其作为液晶介质中的组分的用途,以及液晶和电光显示 含有根据本发明的液晶介质的元件。
摘要:
The invention relates to novel cyclobutane derivatives of the formula (I), in which R1, R2, A, Z, m, n and o have the meaning indicated in claim 1, to the use thereof as components of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention
摘要:
A dielectrically positive liquid crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of formula I wherein the parameters have the meaning given in the specification, and optionally a second dielectrically positive component, component B, comprising one or more dielectrically positive compounds having a dielectric anisotropy of more than 3 and optionally a dielectric neutral component, component C, is suitable for use in liquid crystal displays, especially active matrix displays, and, in particular, TN and to IPS displays.
摘要:
Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1=Q2=H and simultaneously X=CN, Y and/or Z are F.
摘要:
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I in which R, A1, Z1, Y and L are as defined in claim 1.