WO2011054425A1 - Verbindungen für ein flüssigkristallines medium und deren verwendung für hochfrequenzbauteile - Google Patents
Verbindungen für ein flüssigkristallines medium und deren verwendung für hochfrequenzbauteile Download PDFInfo
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- WO2011054425A1 WO2011054425A1 PCT/EP2010/006091 EP2010006091W WO2011054425A1 WO 2011054425 A1 WO2011054425 A1 WO 2011054425A1 EP 2010006091 W EP2010006091 W EP 2010006091W WO 2011054425 A1 WO2011054425 A1 WO 2011054425A1
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- 0 Cc(ccc(*)c1F)c1F Chemical compound Cc(ccc(*)c1F)c1F 0.000 description 2
- BUACZYBYHRRVPN-UHFFFAOYSA-N Cc(c(F)cc(CCc1cc(F)c(C)c(F)c1)c1)c1F Chemical compound Cc(c(F)cc(CCc1cc(F)c(C)c(F)c1)c1)c1F BUACZYBYHRRVPN-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
- C07C13/47—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with a bicyclo ring system containing ten carbon atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
- C07C13/54—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with three condensed rings
- C07C13/573—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with three condensed rings with three six-membered rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
- C07C15/20—Polycyclic condensed hydrocarbons
- C07C15/24—Polycyclic condensed hydrocarbons containing two rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
- C07C15/20—Polycyclic condensed hydrocarbons
- C07C15/27—Polycyclic condensed hydrocarbons containing three rings
- C07C15/28—Anthracenes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
- C07C21/18—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
- C07C21/185—Tetrafluoroethene
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
- C07C21/19—Halogenated dienes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/22—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon triple bonds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C22/00—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom
- C07C22/02—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings
- C07C22/04—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings containing six-membered aromatic rings
- C07C22/08—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings containing six-membered aromatic rings containing fluorine
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
- C09K19/16—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon double bonds, e.g. stilbenes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
- C09K19/322—Compounds containing a naphthalene ring or a completely or partially hydrogenated naphthalene ring
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2219/00—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used
- C09K2219/11—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used used in the High Frequency technical field
Definitions
- the present invention relates to aromatic compounds with
- Liquid-crystalline media are used, for example, for phase shifting microwaves for tunable "phased-array" antennas.
- Liquid-crystalline media have long been in electro-optical
- Displays Liquid Crystal Displays - LCDs used to display information.
- liquid-crystalline media in high-frequency technology is based on their property that they can be controlled by a variable voltage in their dielectric properties, especially for the gigahertz range.
- Phase shifters There, liquid-crystalline media are already being investigated for their properties in the corresponding frequency range.
- compositions or individual compounds are generally associated with disadvantages. Most of them, among other deficiencies, lead to unfavorably high losses and / or inadequate phase shifts or material quality.
- liquid-crystalline media with special, hitherto unusual, unusual properties or combinations of properties are needed.
- the loss in the microwave range must be reduced and the material quality ( ⁇ ) to be improved.
- liquid crystal media can be realized with a suitable nematic phase range and high ⁇ , which do not have the disadvantages of the materials of the prior art, or at least only to a considerably lesser extent.
- the invention relates to compounds of the formula I,
- one or two non-adjacent CH 2 groups may be replaced by -O- and / or -S-, and where H may be replaced by F,
- H atoms to Br, Cl, F, CN, -NCS, -SCN, SF 5l C 1 -C 10 alkyl, CrC 10 alkoxy or a mono- or polyfluorinated Ci-C 10 alkyl or alkoxy group can be replaced, and where
- At least one radical from A 1 to A 5 preferably from A 2 , A 3 and A 4 , represents a radical according to a),
- Y, Y independently of one another are H, F, Cl, C 1 -C 4 -alkyl, preferably H or
- the compounds of the invention have a low
- Liquid-crystalline media according to the invention have the corresponding properties, eg. B. a wide phase range and also a good low temperature stability.
- One or two of the radicals A 2 , A 3 and A 4 preferably represent an optionally substituted 1,4-naphthylene radical according to definition a) of the radicals, more preferably one. More preferably, at least the radical A 3 is a 1, 4-naphthylene radical according to definition a). Among the radicals from the group a) is particularly preferably the 1, 4-naphthylene radical.
- the counter m is preferably 0 or 1, particularly preferably 0.
- the counter n is preferably 0 or 1, particularly preferably 0.
- the ring groups A 1 and A 5 are independently of each other preferably a 1, 4-phenylene, wherein also one or more H atoms to Br, Cl, F, CN, alkyl (C 1 -C 10), methoxy or a mono- or polyfluorinated Methyloxy or methoxy group can be replaced.
- Y 1 / Y 2 are preferably H / H, H / F, F / H, F / F, CH 3 / H or H / CH 3 and more preferably F / F.
- radicals of the group a) for A 1 "5 or preferably A 2" 4 are the radicals of the group a) for A 1 "5 or preferably A 2" 4 .
- 1, 4-Substituted radicals are preferred, particularly preferably the 1, 4-naphthylene radical.
- Difluoroethylene iodide gives a final Suzuki reaction with an aryl boronic acid to the desired target compounds of formula I, in this example with an acetylene and a 1,2-difluoroethylene bridge.
- the anthracene derivatives are from corresponding
- the liquid-crystalline media according to the present invention comprise one or more compounds of the formula I and optionally at least one further, preferably mesogenic compound.
- the liquid crystal medium therefore preferably contains two or more compounds, which are preferably liquid crystalline.
- Preferred media include the preferred compounds of formula I.
- liquid-crystalline media are preferably selected from the compounds of the formula II: wherein
- L 12 R 12 or X 12 independently of one another unfluorinated alkyl or unfluorinated alkoxy having 1 to 17, preferably having 3 to 10, carbon atoms or unfluorinated alkenyl, unfluorinated alkenyloxy, or unfluorinated alkoxyalkyl having 2 to 15, preferably 3 to 10, C -Atomen, preferably alkyl or unfluorinated alkenyl, independently of one another F, Cl, Br, -CN, -NCS, -SCN, -SF 5 , fluorinated alkyl or fluorinated alkoxy having 1 to 7 carbon atoms or fluorinated alkenyl, fluorinated alkenyloxy or fluorinated alkoxyalkyl having 2 to 7 carbon atoms, preferably fluorinated alkoxy, fluorinated alkenyloxy, F or Cl,
- trans- CH CH-
- trans- -CF CF-
- -C ⁇ C- or a single bond independently of each other
- Ci-C 10 alkyl, C1-C10 alkoxy or a mono- or polyfluorinated C1-C10 alkyl or alkoxy group may be replaced, preferably independently
- R is Cl, Ci -7- alkyl or C 3 -e cycloalkyl mean.
- the liquid-crystalline media comprise one or more compounds of the formula I and one or more compounds of the formula II.
- the liquid-crystalline media preferably contain a total of 5 to 95%, preferably 10 to 90% and particularly preferably 15 to 80%, of compounds of the formula I.
- the liquid-crystalline media according to the present invention contain 10% or less, preferably 5% or less, more preferably 2% or less, most preferably 1% or less, and especially no compound having only two or less five and / or six-membered rings.
- the liquid-crystalline media according to the present invention contain compounds selected from the group of the compounds of formulas I and II, more preferably they are predominantly, even more preferably they are substantially and quite preferably they consist entirely thereof.
- compositions containing the entity in question ie the medium or the component, the specified component or components or compound or compounds, preferably in a total concentration of 10% or more, and more preferably 20% or more.
- “Predominantly” in this context means that the entity in question contains 55% or more, preferably 60% or more and most preferably 70% or more of the indicated component or components or compound or compounds.
- Substantially in this context means that the entity in question contains 80% or more, preferably 90% or more, and most preferably 95% or more of the stated component or components or compound or compounds.
- “Complete” in this context means that the entity in question contains 98% or more, preferably 99% or more and most preferably 100.0% of the indicated component or components or compound or compounds.
- the liquid-crystalline media according to the present application contain a total of 10 to 100%, preferably 20 to 95% and
- the compounds of formula II are preferably present in a total concentration of 10% to 90%, more preferably 15% to 85%, even more preferably 25% % to 80%, and more preferably from 30% to 75% of the total mixture.
- the liquid-crystalline media may also contain other additives such as stabilizers, chiral dopants and nanoparticles.
- the individual compounds added are used in concentrations of from 0.01 to 6%, preferably from 0.1 to 3%. However, the concentration data of the other constituents of the liquid-crystal mixtures, ie the liquid-crystalline or mesogenic compounds, are given without taking into account the concentration of these additives.
- the liquid-crystalline media preferably contain 0 to 10% by weight, in particular 0.01 to 5% by weight and more preferably 0.1 to 3% by weight, of stabilizers.
- the media preferably contain one or more stabilizers selected from 2,6-di-tert-butylphenols, 2,2,6,6- Tetramethylpiperidines or 2-benzotriazol-2-yl-phenols.
- Excipients are known in the art and commercially available, for. B. as a sunscreen.
- An embodiment of the invention is therefore also a method for
- liquid-crystal medium which is characterized in that one or more compounds of the formula I is mixed with one or more further compounds and optionally with one or more additives.
- the further compounds are preferably selected from the compounds of the formula II, as indicated above, and optionally one or more further compounds.
- dielectrically positive describes compounds or components with ⁇ > 3.0, dielectrically neutral with -1.5 ⁇ ⁇ 3.0 and dielectrically negative with ⁇ ⁇ -1.5.
- the dielectric anisotropy of each compound becomes apparent from the results of a solution of 10% of each individual compound in one
- the applied voltage is a square wave with a frequency of 1 kHz and an effective value of typically 0.5V to 1.0V, but is always chosen to be below the capacitive threshold for the particular test mixture.
- ⁇ is defined as ( ⁇ ⁇ - ⁇ ⁇ ), while s Dr chschn. ( ⁇ ⁇ + 2 ⁇ ⁇ ) / 3 is.
- a host mixture for dielectrically positive compounds is the
- Constants of the compounds are obtained by changing the respective values of the host mixture upon addition of the compounds of interest certainly. The values are extrapolated to a concentration of the compounds of interest of 100%.
- threshold voltage refers to in the present
- V 0 the term saturation voltage refers to optical saturation and is given for 90% relative contrast (V 90 ), in both cases, unless expressly stated otherwise.
- V 90 The capacitive threshold voltage (Vo), also called the Freedericks threshold V Fr , is only used if expressly stated.
- Test cells are manufactured with Merck KGaA, Germany Test cells determined.
- the test cells for the determination of ⁇ have a layer thickness of approximately 20 ⁇ m.
- the electrode is a circular ITO electrode with an area of 1.13 cm 2 and a guard ring.
- the alignment layers are SE-121 1 from Nissan
- Capacitance is determined using a Solatron 260 frequency response analyzer using a sine wave with a voltage of 0.3 Vrms.
- the light used in the electro-optical measurements is white light.
- a structure with a commercially available device DMS Fa. Autronic Melchers, Germany is used. The characteristic stresses are below vertical
- V10 threshold voltage
- V 50 mid-gray voltage
- V 9 o saturation voltage
- the liquid-crystalline media are investigated for their properties in the frequency range of the microwaves as in A. Penirschke, S.
- the liquid crystal is for example in a capillary
- the capillary has an inner radius of 180 ⁇ and an outer radius of 350 ⁇ .
- the effective length is 2.0 cm.
- the filled capillary is placed in the center of the cavity at a resonant frequency of 30 GHz.
- This cavity has a length of 6.6 mm, a width of 7.1 mm and a height of 3.6 mm.
- the input signal (“source") is applied and the result of the output signal with a commercial For other frequencies (eg 19 Hz), the dimensions of the cavity
- the dielectric constant and the loss angle at the corresponding target frequency are calculated by the equations 10 and 11 of FIG A. Penirschke, S.
- the dielectric anisotropy in the ⁇ -wave range is defined as
- ⁇ ⁇ (s rn - ⁇ ⁇ , ⁇ ).
- the material quality ( ⁇ ) is defined as
- tan ⁇ ⁇ max. ⁇ tan ⁇ ⁇ ,. L: tan ⁇ ⁇ , ⁇ ⁇
- the material quality ( ⁇ ) of the preferred liquid crystal materials is 5 or more, preferably 6 or more, preferably 8 or more, preferably 10 or more, preferably 15 or more, preferably 17 or more, more preferably 20 or more and most preferably 25 or more ,
- the preferred liquid crystal materials have in the respective components phase shifters of 15 dB or more, preferably 207 dB or more, preferably 30 dB or more, preferably 407 dB or more, preferably 507 dB or more, more preferably 807 dB or more, and most preferably from 1007dB or more.
- liquid-crystal media according to the invention are preferred.
- nematic phases of at least from -20 ° C to 80 ° C, preferably from -30 ° C to 85 ° C and most preferably from -40 ° C to 100 ° C on.
- the phase is up to 120 ° C or more, preferably up to 140 ° C or more, and most preferably up to 180 ° C or more.
- nematic phase means, on the one hand, that no smectic phase and no crystallization are observed at low temperatures at the corresponding temperature and, on the other hand, that clarification does not yet occur on heating from the nematic phase.
- the investigation at low temperatures is carried out in a flow viscometer at the appropriate temperature and checked by storage in test cells, with a layer thickness of 5 ⁇ ⁇ , for at least 00 hours.
- the clearing point is measured in capillaries by conventional methods.
- the liquid crystal media according to the present invention preferably have a clearing point of 90 ° C or more, more preferably 100 ° C or more, even more preferably 20 ° C or more, more preferably 150 ° C or more, and most preferably 170 ° C or more, up.
- the ⁇ of the liquid crystal medium according to the invention at 1 kHz and 20 ° C is preferably 1 or more, more preferably 2 or more, and most preferably 3 or more.
- the ⁇ of the liquid crystal media according to the present invention is preferably 589 nm (Na D ) and 20 ° C in the range of 0.20 or more to 0.90 or less, more preferably in the range of 0.25 or more to 0.90 or less, more preferably in the range of 0.30 or more to 0.85 or less and most preferably in the range of 0.35 or more to 0.80 or less.
- the ⁇ of the liquid crystal media according to the present invention is preferably 0.50 or more, more preferably 0.55 or more.
- the liquid-crystal media according to the invention are characterized by high anisotropies in the microwave range.
- the birefringence is e.g. at about 8.3 GHz preferably 0.14 or more, more preferably 0.15 or more, more preferably 0.20 or more, more preferably 0.25 or more, and most preferably 0.30 or more.
- the birefringence is preferably 0.80 or less.
- liquid crystals having a negative value of dielectric anisotropy may also be used to advantage.
- the liquid crystals used are either individual substances or mixtures. Preferably, they have a nematic phase.
- Preferred devices containing a liquid crystal medium or at least one compound according to the invention are phase shifters, varactors, antenna arrays (eg for radio, mobile radio, radio,
- Microwaves / radar and other data transmission Microwaves / radar and other data transmission), matching circuit adaptive filters and others. Preference is given to components for the
- phase shifters are phase shifters.
- multiple phase shifters are operatively connected, resulting in, for example, a phased array antenna.
- a group antenna uses the
- Phase shifting of the arranged in a matrix transmitting or receiving elements to achieve by bundling interference From a row or grid-like parallel arrangement of
- Phase shifters can be a so-called 'phased array' build, which can serve as a tunable transmitting or receiving antenna for high frequencies (eg Gigahertz Scheme).
- Inventive 'phased array' antennas have a very wide usable receiving cone.
- Preferred applications are radar installations and
- a liquid-crystalline medium according to the invention is typically introduced into rectangular cavities of less than 1 mm in cross-section and several centimeters in length.
- the cavities have opposing electrodes mounted along two long sides.
- the dielectric properties of the liquid-crystalline medium can be tuned to set different frequencies or directions of an antenna.
- alkyl preferably includes straight-chain and branched alkyl groups having 1 to 15 carbon atoms, in particular the
- alkenyl preferably includes straight-chain and branched alkenyl groups having 2 to 15 carbon atoms, in particular the straight-chain groups. Particularly preferred alkenyl groups are up to C 7 -1 E-alkenyl, C 4 to C 7 -3E-alkenyl, C 5 to C 7 -4-alkenyl, C 6 to C 7 -5-alkenyl and C 7 -6-A! kenyl, in particular C 2 to C 7 -1 E-alkenyl, C 4 to C 7 - 3E-alkenyl and C 5 to C 7 -4 alkenyl. Examples of further preferred
- Alkenyl groups are vinyl, 1E-propenyl, 1E-butenyl, 1E-pentenyl, 1E-
- alkoxy preferably comprises straight-chain radicals of the formula C n H 2n + i-O-, where n is 1 to 10. N is preferably 1 to 6.
- Preferred alkoxy groups are, for example, methoxy, ethoxy, n-propoxy, n-butoxy, n-pentoxy, n-hexoxy, n-heptoxy, n-octoxy, n-nonoxy, n-decoxy.
- oxaalkyl or “alkoxyalkyl” preferably encompasses straight-chain radicals of the formula C n H 2n + O- (CH 2) m, wherein n and m are each independently from 1 to 10 degrees.
- n is 1 and m is 1 to. 6
- fluorinated alkyl preferably includes mono- or polyfluorinated radicals. Perfluorinated radicals are included.
- CF 3 particularly preferred are CF 3 , CH 2 CF 3 , CH 2 CHF 2 , CHF 2 , CH 2 F, CHFCF 3 and CF 2 CHFCF 3 .
- fluorinated alkoxy includes mono- or polyfluorinated radicals. Perfluorinated radicals are preferred. Particularly preferred is the radical OCF3.
- the liquid crystal media according to the present invention may include further additives and chiral dopants in the usual concentrations.
- the total concentration of these other ingredients is in the range of 0% to 10%, preferably 0.1% to 6%, based on the total mixture.
- the concentrations of the individual compounds used are preferably each in the range of 0.1% to 3%.
- the concentration of these and similar additives is not taken into account in the specification of the values and concentration ranges of the liquid crystal components and liquid crystal compounds of the liquid crystal media in this application.
- the liquid-crystal media according to the invention consist of several compounds, preferably from 3 to 30, more preferably from 4 to 20 and most preferably from 4 to 16 compounds. These compounds are mixed in a conventional manner. In general, the desired amount of the compound used in the smaller amount is dissolved in the compound used in the larger amount. If the temperature is above the clearing point of the compound used in the higher concentration, the completion of the dissolution process is particularly easy to observe.
- premixes which may be e.g. may be homologous or eutectic mixtures of compounds, or using so-called "multi-bottle" systems, the components of which are themselves ready-mixed mixtures.
- Applications with frequencies in the range of 1 MHz to 1 THz preferably from 1 GHz to 500 GHz, preferably 2 GHz to 300 GHz, more preferably from about 5 to 150 GHz.
- the application is preferably in the microwave spectrum or adjacent, for message transmission suitable areas in which 'phased array' modules can be used in transmitting and receiving antennas.
- the phases are separated and the aqueous phase extracted once with MTB.
- the combined organic phases are washed with saturated Natriumchloridlsg. washed, dried over sodium sulfate, filtered off and concentrated on a rotary evaporator. The residue will be
- the batch is cooled, treated with water and heptane and the phases are separated.
- the organic phase becomes more saturated
- the product obtained from the previous stage (13.2 mmol) is initially charged in 100 ml of THF and 5 ml of water and treated with 13 ml of a solution of tetrabutylammonium fluoride (1 M in THF, 13 mmol). The reaction is stirred overnight at RT and stopped by the addition of half-saturated sodium chloride solution and MTB. The phases are separated, the organic phase dried over sodium sulfate, filtered off and concentrated on Rotattonsverdampfer. The residue will be
- the product obtained from the previous step (6 mmol) is initially charged in 55 ml of THF, cooled to -70 ° C and treated dropwise with 4.3 ml of n-BuLi (1, 6M in hexane, 6.8 mmol). After 1 h, 1.9 g (7.5 mmol) of iodine in 15 ml of THF are added and the mixture is stirred at -60 ° C. for 1 h. The mixture is then warmed to 0 ° C and quenched by the addition of water. Then 1 g (4 mmol) of sodium thiosulfate pentahydrate and MTB are added and the phases are separated. The aqueous phase is extracted with MTB, the combined organic phases are washed with saturated sodium chloride solution, dried over sodium sulfate, filtered off and concentrated on a rotary evaporator. The residue will be
- a liquid crystal mixture M-1 having the composition and properties as shown in the following table is prepared.
- the compound (1) is from Synthesis Example 10.
- This mixture is used for applications in the microwave range, in particular for phase shifters ('phased array').
- a mixture C-1 without the component (1) is prepared from the compounds Nos. 1-14 of M-1, wherein the compounds Nos. 1-14 are contained in the same relative amounts.
- controllability ⁇ and the material quality ⁇ are opposite to the
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Abstract
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Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012537308A JP5763084B2 (ja) | 2009-11-04 | 2010-10-06 | 液晶媒体のための化合物および高周波構成要素のためのその使用 |
| KR1020127014236A KR101800036B1 (ko) | 2009-11-04 | 2010-10-06 | 액정 매질용 화합물, 및 고주파 부품을 위한 그의 용도 |
| US13/505,761 US9752076B2 (en) | 2009-11-04 | 2010-10-06 | Compounds for a liquid-crystalline medium, and the use thereof for high-frequency components |
| EP10773838.7A EP2496664B1 (de) | 2009-11-04 | 2010-10-06 | Verbindungen für ein flüssigkristallines medium und deren verwendung für hochfrequenzbauteile |
| CN201080048996.3A CN102597168B (zh) | 2009-11-04 | 2010-10-06 | 用于液晶介质的化合物及其用于高频组件的用途 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009051906 | 2009-11-04 | ||
| DE102009051906.8 | 2009-11-04 |
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| Publication Number | Publication Date |
|---|---|
| WO2011054425A1 true WO2011054425A1 (de) | 2011-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/EP2010/006091 Ceased WO2011054425A1 (de) | 2009-11-04 | 2010-10-06 | Verbindungen für ein flüssigkristallines medium und deren verwendung für hochfrequenzbauteile |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9752076B2 (de) |
| EP (1) | EP2496664B1 (de) |
| JP (1) | JP5763084B2 (de) |
| KR (1) | KR101800036B1 (de) |
| CN (1) | CN102597168B (de) |
| DE (1) | DE102010047702A1 (de) |
| TW (1) | TWI512085B (de) |
| WO (1) | WO2011054425A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012069133A1 (de) * | 2010-11-23 | 2012-05-31 | Merck Patent Gmbh | Verbindungen für ein flüssigkristallines medium und deren verwendung für hochfrequenzbauteile |
| CN103764792A (zh) * | 2011-09-05 | 2014-04-30 | 默克专利股份有限公司 | 液晶介质和包含其的高频组件 |
| KR20150058448A (ko) * | 2012-09-21 | 2015-05-28 | 메르크 파텐트 게엠베하 | C-c 삼중 결합을 갖는 화합물 및 액정 혼합물에서 이의 용도 |
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| DE102012003876A1 (de) * | 2011-03-24 | 2012-09-27 | Merck Patent Gmbh | Verbindung mit einer C-C-Dreifachbindung |
| CN104409855A (zh) * | 2014-12-11 | 2015-03-11 | 天津中兴智联科技有限公司 | 新型相控阵天线 |
| EP3414300B1 (de) * | 2016-02-08 | 2019-10-30 | Merck Patent GmbH | Flüssigkristallines medium und hochfrequenzkomponenten damit |
| JP7097878B2 (ja) * | 2016-10-24 | 2022-07-08 | メルク・パテント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 液晶媒体 |
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- 2010-10-06 WO PCT/EP2010/006091 patent/WO2011054425A1/de not_active Ceased
- 2010-10-06 EP EP10773838.7A patent/EP2496664B1/de active Active
- 2010-10-06 DE DE102010047702A patent/DE102010047702A1/de not_active Withdrawn
- 2010-10-06 CN CN201080048996.3A patent/CN102597168B/zh active Active
- 2010-10-06 US US13/505,761 patent/US9752076B2/en active Active
- 2010-11-03 TW TW099137831A patent/TWI512085B/zh active
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012069133A1 (de) * | 2010-11-23 | 2012-05-31 | Merck Patent Gmbh | Verbindungen für ein flüssigkristallines medium und deren verwendung für hochfrequenzbauteile |
| CN103764792A (zh) * | 2011-09-05 | 2014-04-30 | 默克专利股份有限公司 | 液晶介质和包含其的高频组件 |
| CN103764792B (zh) * | 2011-09-05 | 2016-06-22 | 默克专利股份有限公司 | 液晶介质和包含其的高频组件 |
| KR20150058448A (ko) * | 2012-09-21 | 2015-05-28 | 메르크 파텐트 게엠베하 | C-c 삼중 결합을 갖는 화합물 및 액정 혼합물에서 이의 용도 |
| US20150267115A1 (en) * | 2012-09-21 | 2015-09-24 | Merck Patent Gmbh | Compounds having a c-c triple bond and use thereof in liquid-crystal mixtures |
| JP2015535819A (ja) * | 2012-09-21 | 2015-12-17 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | C−c三重結合を有する化合物およびそれらの液晶混合物における使用。 |
| US9868905B2 (en) * | 2012-09-21 | 2018-01-16 | Merck Patent Gmbh | Compounds having a C—C triple bond and use thereof in liquid-crystal mixtures |
| KR102069008B1 (ko) * | 2012-09-21 | 2020-02-11 | 메르크 파텐트 게엠베하 | C-c 삼중 결합을 갖는 화합물 및 액정 혼합물에서 이의 용도 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201134924A (en) | 2011-10-16 |
| CN102597168A (zh) | 2012-07-18 |
| US9752076B2 (en) | 2017-09-05 |
| TWI512085B (zh) | 2015-12-11 |
| CN102597168B (zh) | 2014-09-03 |
| JP2013510101A (ja) | 2013-03-21 |
| JP5763084B2 (ja) | 2015-08-12 |
| KR20120114248A (ko) | 2012-10-16 |
| DE102010047702A1 (de) | 2011-05-05 |
| EP2496664B1 (de) | 2014-10-01 |
| US20120267571A1 (en) | 2012-10-25 |
| EP2496664A1 (de) | 2012-09-12 |
| KR101800036B1 (ko) | 2017-11-22 |
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