494 results about "Dibenzothiophene" patented technology

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.

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.

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.

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.

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.

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.

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 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.

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.

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.

A holographic recording medium includes a recording layer. The recording layer includes a framework being expressed with the following general formula (1),

In the above formula (1), Ar represents a substituted or unsubstituted group selected from benzothiophene group, naphthothiophene group, dibenzothiophene group, thienothiophene group, dithienobenzene group, benzothiazole group, naphthothiazole group, benzoisothiazole group, naphthoisothiazole group, phenothiazine group, phenoxathiin group, dithianaphthalene group, thianthrene group, thioxanthene group, and bithiophene group. In addition, n is an integer from 1 to 4.

The invention relates to an electro-phosphorescence polymer containing an (alkyl-substituted-)S,S-dioxo-dibenzothiophene unit and application thereof. In the electro-phosphorescence polymer, the (alkyl-substituted-)S,S-dioxo-dibenzothiophene unit is introduced into an electro-phosphorescence polymer chain, and a phosphorescence unit is respectively arranged on the main chain, the side chain or the branched chain of the polymer. The injection/ transmission balance of a hole/ electron is improved, the triplet state energy level of a main body is not obviously changed, and therefore the phosphorescence polymer has higher electroluminescence efficiency. The polymer of the series has the advantages of good stability, solubility, luminescent capability and the like, is suitable for solution processing, such as solution spin coating, ink-jet printing and the like, and has a wide application prospect in the fields of organic photovoltaic materials and devices.