503 results about "Dibenzothiophene" patented technology

The present invention relates to compounds of formula I, wherein Y, X1, X2, X3, R1, R2, A1, A2, Z1, Z2, m and n are as defined in claim 1 as components in liquid crystal media and to electro-optical display elements comprising a liquid-crystalline medium according to the invention.

The present invention provides a material for an organic electroluminescence device having a specific structure in which a dibennzofuranyl group or a dibenzothiophenyl group is bonded at an N-position (9-position) of a carbazolyl group and an organic electroluminescence device which is provided with one or more organic thin film layers including a light emitting layer between a cathode and an anode and in which at least one layer of the organic thin film layers described above contains the material for an organic electroluminescence device according to the present invention.

The invention relates to a dibenzofuran and dibenzothiophene derivative with a general formula I (shown in the description), wherein X1, X2, W, Y, R, A, Z and m are defined in claims. The invention relates to a manufacturing method, the application of a component serving a liquid crystal medium, and an electro-optic display element comprising the liquid crystal medium.

Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, A represents any of a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted carbazolyl group, R11 to R19 separately represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 14 carbon atoms, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.

The invention discloses an alkyl substituted-S,S-dioxo-dibenzothiophene monomer, a preparation method and a polymer thereof. The presence of the strong electron-withdrawing group -SO2- in the alkyl substituted-S,S-dioxo-dibenzothiophene is favorable for improving the electron affinity of molecules, and the introduction of the alkyl greatly improves the dissolubility of the monomer in an organic solvent. The alkyl substituted-S,S-dioxo-dibenzothiophene monomer can form a homopolymer or a copolymer through the polymerization reaction of Suzuki, Stille and Yamamoto. The series of polymers have good dissolubility in the organic solvent, are suitable for processing solution, and have broad application prospects in the fields of organic flat displays, photovoltaic cells and organic field-effect tubes.

A composite material including an organic compound and an inorganic compound and having a high carrier-transport property is provided. A composite material having a high carrier-injection property to an organic compound is provided. A composite material in which light absorption due to charge transfer interaction is unlikely to occur is provided. A light-emitting element having high emission efficiency is provided by including the composite material. A light-emitting element having a low drive voltage is provided. A light-emitting element having a long lifetime is provided. A composite material including a heterocyclic compound having a dibenzothiophene skeleton or a dibenzofuran skeleton and an inorganic compound exhibiting an electron-accepting property with respect to the heterocyclic compound is provided.

Objects are to provide the following: a substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having high emission efficiency using the substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having low driving voltage; and a light-emitting device, an electronic device, and a lighting device having low power consumption. Provided is a triazole derivative in which a dibenzothiophen-4-yl or dibenzofuran-4-yl group represented by General Formula (G2) is bonded to any one of Ar1 to Ar3 of a triazole derivative represented by General Formula (G1). In the formulae, A represents oxygen or sulfur, Ar1 to Ar3 separately represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R1 to R7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.

The invention relates to a copolymer of bithiophene diazosulfide and dibenzothiophene (BDT) and application thereof. 4,7-bithiophene-5,6-dioctyloxy-diazosulfide (DODTBT) and a di-tin compound of the BDT are coupled through Stille to obtain poly-[2,6-(4',8'-di-iso-octyl-benzene-(1',2'-b;3',4'-b)-bithiophene)-CO-4,7-bithiophene-5,6-dioctyloxy-diazosulfide (PBDT-DODTBT). The polymer has good photoelectric conversion function and can be widely applied to polymer solar cells. Particularly, the PBDT-DODTBT is used as a donor material and mixed with a C60 receptor, and an obtained mixture is coated on ITO (Indium Tin Oxid) conducting glass to prepare a semitransparent thin film; and then a metal electrode is evaporated on the polymer through a vacuum evaporation mode to prepare a polymer solar cell device, wherein the preliminary survey energy conversion efficiency (PCE) of the device reaches 4.02 percent.

This invention relates to dibenzothiophene, dibenzofuran, dibenzopyran, and dibenzothiapyran compounds. This invention also relates to layers and devices including at least one of the above compounds.

An organic compound having a low HOMO level and a high hole-transport property is provided. The organic compound is represented by Formula (G1), where Ar1 represents a substituted or unsubstituted fluorenyl group, Ar2 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and A1 represents any one of a substituted or unsubstituted dibenzofuranyl group and a substituted or unsubstituted dibenzothiophenyl group. The low HOMO level and the high hole-transport property of the organic compound allow the formation of an exciplex with another organic compound, which leads to a highly efficient light-emitting element in the presence of a phosphorescent compound due to the effective overlapping between the emission of the exciplex and the longest absorption band of the phosphorescent compound.

The present invention relates to an organic thin-film light emitting device containing an organic compound represented by formula (1) and a donor compound. the light emitting device ca achieve both of the low-voltage driving operation and high luminance efficiency.YA1-Ar)n<sup2>1< / sup2>  (1)(Y represents either substituted or unsubstituted pyrene, or substituted or unsubstituted anthracene. A1 is selected from the group consisting of a single bond, an arylene group, and a hetero arylene group. Ar is selected from the group consisting of a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group. These groups may be substituted or unsubstituted, and n1 is an integer of 1 to 3.)

Provided is a novel heterocyclic compound which can be used in a light-emitting layer of a light-emitting element as a host material in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. Any one of R1 to R10 represents a substituent represented by a general formula (G1-1), another one of R1 to R10 represents a substituent represented by a general formula (G1-2), and the others separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α1 and α2 separately represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyldiyl group, and A1 and A2 separately represent a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzothiophenyl group, or a substituted or unsubstituted dibenzofuranyl group.

The invention provides an arylamine compound and an organic light-emitting device thereof and relates to the technical field of organic photoelectric materials. According to the arylamine compound, adibenzothienyl group / dibenzofuranyl group / carbazolyl group is connected onto an arylamine group to serve as a bridging group, and oxazole / thiazole / imidazole and its derivative are connected, so that aseries of compounds are obtained, the compounds have higher glass transition temperatures and good thermal stability, and the prepared organic light-emitting device has the advantage of long servicelife. In addition, the arylamine compound is high in refractive index, can reduce total emission loss and waveguide loss and improve light extraction efficiency, thereby improving the light emitting efficiency. The arylamine compound is good in film-forming property, simple in synthesis and easy to operate, and can be widely applied to the fields of panel display, illumination light sources, organic solar cells, organic photoreceptors, organic thin film transistors and the like.

A method of desulfurizing / refining a hydrocarbon oil by which sulfur compounds are diminished to an extremely low concentration at a relatively low equipment cost and operating cost. The method of desulfurizing / refining a hydrocarbon oil comprises bringing a hydrocarbon oil containing at least one sulfur compound selected from the group consisting of thiophene compounds, benzothiophene compounds, and dibenzothiophene compounds and optionally further containing aromatic hydrocarbons into contact with a solid acid catalyst and / or an activated carbon having a transition metal oxide supported thereon to thereby desulfurize the oil. The solid acid catalyst preferably is a solid ultrastrong-acid catalyst selected among sulfuric acid radical / zirconia, sulfuric acid radical / alumina, sulfuric acid radical / tin oxide, sulfuric acid radical / iron oxide, tungstic acid / zirconia, and tungstic acid / tin oxide.

The invention discloses a S,S-dioxo-dibenzothiophene monomer containing polar substituent groups, water / alcohol soluble polymers thereof, and an application thereof The water / alcohol soluble linear polymers of the S,S-dioxo-dibenzothiophene monomer containing the polar substituent groups and hyperbranched polymers can be used as a cathode interface modification layer of high work function metals, such as aluminium and gold, and thus applied in light-emitting diodes and photovoltaic cell devices. Compared with present polymers (PFN) used for cathode interface layers, the S,S-dioxo-dibenzothiophene unit polymers containing the polar groups has relatively low highest occupied molecular orbital (HOMO) energy level and can simultaneously play effects of electron injection and hole blocking. The polymer can be dissolved in methanol, N,N-dimethyl formamide (DMF), dimethyl sulfoxide (DMSO), water and other polar solvents, and thus phenomena of interface mixing do not occur between an electron transport layer and an active layer during constructing multilayer devices.

This invention is one kind of high capability hydrogenation cracking catalyst and its preparing method, it belongs to new material, oil refining, petrochemical industry and energy technique field. Metal active component is carried by complex carrier, the catalyst prepared not only has high hydrocracking activity, but also high hydrodesulfurization activity, it can be use to deeply remove sulfur and nitrogen and other mixed atoms when in ifp basf hydrocracking process of lightening heavy oil fraction. Complex carrier is generated by interpose hole molecular sieve and zeolite molecular sieve. The central hole of complex carrier is propitious to highly disperse of active metal and reduce inside diffusional resistance of reactant molecule, and hydrogenation center and cracking center can be provided by acidity of zeolite molecular sieve. The beneficial effect of this invention is that dibenzanthracene thiophene and its derivant can fully transformed, cracked product in products can almost more than 80%. It is mainly used in lightening of heavy oil fraction in oil and coal liquid processing, sulfur, nitrogen and other mixed atoms can be removed at the same time.

The invention relates to a compound shown as formula (I). R1 is selected from C1-20 aliphatic straight chain or branched chain alkyl or C6-30 aryl radical; R2 is selected from C4-40 substituted or unsubstituted aromatic amino, carbazolyl, dibenzothienyl, indolyl or dibenzofuryl; L is selected from the single bond, C4-40 substituted aromatic amine, C4-40 substituted carbazole, C4-40 substituted indole, C4-40 substituted dibenzofuran, C4-40 substituted dibenzothiophene, substituted or unsubstituted diphenyl ether, O, N or S; R3-R6 is independently selected from H atom, C1-20 of aliphatic straight chain or branched chain alkyl or C6-30 aromatic groups, or a ring formed by connecting two adjacent groups; and n is selected from an integer of 2-5. The invention also protects the application of the compound in organic light emitting devices, especially as a hole transport / injection material in OLED devices.

A method of desulfurizing / refining a hydrocarbon oil by which sulfur compounds are diminished to an extremely low concentration at a relatively low equipment cost and operating cost. The method of desulfurizing / refining a hydrocarbon oil comprises bringing a hydrocarbon oil containing at least one sulfur compound selected from the group consisting of thiophene compounds, benzothiophene compounds, and dibenzothiophene compounds and optionally further containing aromatic hydrocarbons into contact with a solid acid catalyst and / or an activated carbon having a transition metal oxide supported thereon to thereby desulfurize the oil. The solid acid catalyst preferably is a solid ultrastrong-acid catalyst selected among sulfuric acid radical / zirconia, sulfuric acid radical / alumina, sulfuric acid radical / tin oxide, sulfuric acid radical / iron oxide, tungstic acid / zirconia, and tungstic acid / tin oxide.

Disclosed are dibenzofuran and dibenzothiophene derivatives of the general formula I,in which X1, X2, W, Y, R, A, Z and m have the meaning defined in claim 1, to a process for the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain the liquid-crystalline media according to the invention.

The invention relates to an electroluminescent material. According to the invention, diphenyl triazine is adopted as a ligand, and is subjected to a substitution reaction with aromatic heterlcyclic ring, such that a compound comprising two heterlcyclic rings is obtained. The aromatic heterlcyclic ring is carbazole, benzocarbazole, dibenzothiophene or dibenzofuran. The two heterlcyclic ring compounds are directly connected or connected through aromatic groups. According to the invention, the diphenyl triazine material has high triplet-state energy level and good thermal stability. Also, the carbazole, benzocarbazole, dibenzothiophene or dibenzofuran structure generally has high triplet-state energy level. The two are connected, and a dimeric structure is further prepared through other groups. When the novel structure is adopted as a phosphorescent main material and is used in an electroluminescent material, good photoelectric property is provided. The material can be used as an excellent blue phosphorescent main material.

The invention relates to a method for reducing sulfur content in fuel oil by extraction-catalysis hydrogen peroxide oxidation of FeCl3 ionic liquid, and the FeCl3 ionic liquid is extracting agent of sulfide in fuel oil and is also catalyst of sulfide for hydrogen peroxide oxidation. In the invention, on the conditions that the mass ratio of ionic liquid and fuel oil is in the range of 1:1 to 1: 5, the concentration of aqueous hydrogen peroxide solution is 5% to 30%, the reaction temperature is 30 to 60 DEG C and the reaction time is 5 to 30 minutes, the content of organic sulfur dibenzothiophene in analog oil product is reduced to be about 10 ppm in extraction coupling catalytic oxidation method. Compared with the traditional method, the method has the advantages of high desulfuration efficiency, short reaction time, simple reaction system, mild reaction conditions, no requirement for pressurized equipment, convenient separation, cycle use of ionic liquid, and the like.

The invention relates to a semiconductor conjugated polymer and a preparation method thereof. The invention discloses a solution-processable polymer semiconductor material and particularly relates to a semiconductor conjugated polymer based on two-dimensional conjugated dibenzothiophene and (2-oxyindole-3-subunit)dibenzofuran-diketone and preparation thereof. The synthesized semiconductor conjugated polymer has wide absorption peak which covers visible light, even extends to a near infrared region; in addition, the synthesized semiconductor conjugated polymer has low lowest unoccupied molecular orbital (LUMO) energy level and can replace fullerene derivative (PCBM) to serve as a photovoltaic receptor material applied to the organic photovoltaic field. The introduced side chain serves as a solubilized alkyl chain. The semiconductor conjugated polymer prepared by the method can be subjected to solution processing, and has a certain application prospect in the organic photovoltaic field.

The invention discloses mesoporous ZSM-5 zeolite, a mesoporous ZSM-5 zeolite-loaded metal sulfide catalyst and an application. The synthesizing method of the mesoporous ZSM-5 zeolite comprises the following steps: (1) after uniformly mixing diallylamine and concentrated hydrochloric acid, adding dimethyl diallyl ammonium chloride, uniformly stirring and reacting for 1-6 hours at 60-120 DEG C, and cooling to obtain a template agent DMMC (Dimethylol Methyl Carbamate); (2) preparing acidified aluminum sulfate liquor by aluminum sulfate, concentrated sulfuric acid and water; (3) adding water into water glass, uniformly stirring, adding NaOH, adding the template agent DMMC after cooling to room temperature, continuously stirring for 2-5 hours, then adding the acidified aluminum sulfate liquor under stirring, and stirring for 2-8 hours to obtain a gel in a final state; (4) crystallizing the gel in the final state obtained in the step (3), filtering, drying and calcining to obtain the mesoporous ZSM-5 zeolite. The mesoporous ZSM-5 zeolite-loaded metal sulfide catalyst prepared by taking the mesoporous ZSM-5 zeolite as a carrier is applied to hydrodesulfurization of 4, 6-dimethyl dibenzothiophene and hydrocracking reaction of n-decane, thereby greatly improving the raw material conversion ratio.

A desulfurizing absorbent for removing S-contained compound from distillate, especially removing dibenzothiophene and its derivatives, is prepared from activated carbon through chemical and physical activatings. Said absorbent features its special artery structure.

A combined desulfurization idea and process for coal removal, including the combination of high-efficiency core desulfurization bacteria agent and indigenous bacteria agent, as well as the combination of inorganic sulfur removal and organic sulfur removal technology, perfects the type and level of desulfurization, and can improve the desulfurization speed and efficiency. This invention considers and analyzes the differences in the state and content of sulfur in different coals, screens the indigenous microbial communities in the treated coal, and increases the local microbial populations’ influence on the core desulfurizing bacteria when the desulfurizing agents are expanded and applied in batches. Ecological support to form a combined desulfurization bacteria agent that is really suitable for the coal to be treated; at the same time, through the design and transformation of the traditional heap leaching method, the inorganic sulfur (mainly pyrite sulfur and elemental sulfur) and organic sulfur ( Dibenzothiophenes) are oxidized and decomposed into sulfuric acid by stage microorganisms and collected, so as to achieve the purpose of desulfurization. The combined microbial desulfurization method adopted in the present invention is a new technology pioneered at home and abroad.

The invention discloses a mesoporous magnesium oxide, a hydrodesulfurization catalyst loading CoMo metal sulfide and an application thereof. The mesoporous magnesium oxide is prepared through the following steps that (1) water is used as reaction medium, magnesium hydroxide fully reacts with carbon dioxide under room temperature in an airtight reaction still, then reaction liquid in the reaction still is filtered, and filtrate which contains Mg (HCO3)2 is obtained; (2) macromolecule surfactant N, N-Diethyl-N-Cetyl-N- (3-methoxy silane propane) ammonium iodide are added into the filtrate which contains the Mg (HCO3)2, mixture is heated to 80 DEG C-95 DEG C and maintained to 0.5h-2h under stirring, the mixture is calcinated for 3h-4h after the mixture is filtered and dried, and the mesoporous magnesium oxide is obtained. The hydrodesulfurization catalyst loading CoMo metal sulfide is prepared by that the mesoporous magnesium oxide is used as carriers, is suitable for hydrodesulfurization reactions of dibenzothiophene, and exerts high catalytic activity.

The invention relates to a preparation method of hierarchical porous titanium silicalite molecular sieves. The preparation method comprises the following steps: slowly adding a template into a silicon source under the condition of continuous stirring, and obtaining a colorless transparent solution after the silicon source is completely hydrolyzed; slowly adding a mixed solution of a titanium source and isopropanol into the above solution, removing alcohol, fully mixing with an aqueous solution of polyvinyl alcohol, carrying out hydrothermal crystallization, centrifuging, washing, drying, and roasting to obtain the hierarchical porous titanium silicalite molecular sieves. In comparison with the prior art, the prepared titanium silicalite molecular sieves have rich mesoporous channels, which are interconnected. The product has an excellent catalytic effect in the aspect of macromolecular catalytic oxidation, especially in the aspect of oxidation of dibenzothiophenes and 4,6-dimethyl dibenzothiophenes.

Provided are: an aromatic amine derivative having a terminal substituent selected from a dibenzofuran, a dibenzothiophene, a substituted carbazole, and a substituted fluorene bound to the central skeleton having a specific structure through a nitrogen atom; an organic electroluminescence device, including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and an anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative alone or as a component of a mixture, the organic electroluminescence device having a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.