1549 results about "Chemical formula" patented technology

The invention provides a composition for an organic optoelectronic device, an organic optoelectronic device, and a display device. The composition includes a first host represented by Chemical Formula 1, a second host represented by a combination of Chemical Formula 2 and Chemical Formula 3, and a dopant represented by Chemical Formula 4. The contents of Chemical Formulae 1 to 4 are as defined in the specification.

The invention relates to a brand-new microbial natural metabolite, namely Fcl-8, which is derived from a fermentation solution of Xenorhabdius budapestensis XBD8, and is characterized in that the Fcl-8 is a new microbial natural metabolite, namely Fcl-8, which is derived from the fermentation solution of the Xenorhabdius budapestensis XBD8. The purified Fcl-8 is a snow white flocculent crystal and is very easy to dissolve in water, and the solid state of the purified Fcl-8 is as shown in Figure 1. The chemical structural formula of the Fcl-8 is as shown in a figure 2, the chemical formula is C57H102N14O12, the molecular weight is 1175.78744, and the typical secondary mass spectrum information of the Fcl-8 is as shown in a figure 3. The Fcl-8 is derived from a microbial natural metabolite, is novel in structure and high in biological activity, and has very high potential to be developed into a novel biopesticide.

The application specifically discloses a phosphate-based positive electrode material and a preparation method and application thereof. The phosphate-based positive electrode material comprises base particles and a carbon coating layer coated on the surface of the base particles; the chemical formula of the base particles is Li x M y PO4, 0.96≤x≤1.08, 0.96≤y≤1, M comprises at least one of Fe and Mn; wherein, the M site is doped with a first metal element, the first metal element comprises at least one of Ti, V, Cr, Co, Ni, Nb, Mo and W; and / or, the Li site is doped with a second metal element, the second metal element comprises at least one of Mg and Zr; the carbon coating layer comprises a carbon material, and the degree of disorder I D / I G of the carbon material is ≤1.2. The application has the advantages of improving the electrochemical performance of the phosphate-based positive electrode material and reducing the ion elution rate thereof.

Provided are a composition for an organic optoelectronic device, an organic optoelectronic device, and a display device. The composition for an organic optoelectronic device includes a first host represented by Chemical Formula 1, a second host represented by a combination of Chemical Formula 2 and Chemical Formula 3, and a dopant represented by Chemical Formula 4. The contents of Chemical Formulae 1 to 4 are as defined in the specification.

One mode of a chromatograph mass spectrometer according to the present invention includes: a measurement unit (1) that includes a chromatograph unit (1A) and a mass spectrometry unit (1B) capable of performing MS / MS analysis, and collects chromatograph mass spectrometry data having three dimensions of time, m / z, and a signal intensity by repeatedly performing the MS / MS analysis by data independent analysis in the mass spectrometry unit on a sample containing a compound separated by the chromatograph unit; a component detection unit (42) that detects a compound and a component corresponding to a partial structure of the compound by obtaining MS / MS spectra of a bar graph presentation based on chromatograph mass spectrometry data over a predetermined m / z range for a target sample, estimating precursor ion peaks in each of the MS / MS spectra, and selecting peaks based on a predetermined standard regarding an m / z direction in each of the MS / MS spectra and a predetermined standard regarding a time direction for peaks that can be considered to be identical or an identical group on the MS / MS spectra; a narrowing unit (43, 44) that narrows down components to be analyzed by performing screening using prior information on the detected component; and a composition estimation unit (45) that, by using m / z information corresponding to a narrowed down component, estimate a composition or a chemical formula of the component.

The invention discloses a zinc transition metal complex and preparation and application thereof in fluorescence recognition of biomolecules, and relates to the technical field of metal organic framework materials, the chemical formula of the zinc transition metal complex is [Zn2 (L) 2 (bpe) (H2O) 2] n, and 3, 5-bis (3-carboxylic acid phenyl)-1, 2, 4-triazole, 1, 2, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole, 1, 3, 4-triazole The complex material is prepared by co-dissolving 2, 2-bis (4-pyridyl) ethylene, Zn (NO3) 3.6 H2O and N, N-dimethylformamide in an aqueous solution, has excellent fluorescence performance, has the capability of specifically identifying ascorbic acid in various biomolecules, and also has relatively good anti-interference performance, excellent circularity and strong stability, and can be widely applied to the field of biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry, biochemistry and biochemistry. The method can be used for detecting ascorbic acid in water and beverages.

The invention relates to the technical field of computer-aided material design, in particular to a material chemical formula generation method based on performance sensitivity self-adaptive stratified sampling, which comprises the following steps: inputting an element list; querying a performance sensitivity knowledge base to obtain a sensitivity level and an adjustment factor; analyzing the composite elements, extracting multi-dimensional element features, and quantitatively calculating element combination complexity; based on the element number, the sensitivity and the complexity, a corresponding sampling strategy is adaptively selected, and the sampling amount is dynamically allocated; generating a chemical formula and de-weighting; and outputting a chemical formula list and full-process metadata. Through innovation of resource allocation driven by performance sensitivity, composite element atomic-scale analysis, feature space clustering and the like, on the premise that sampling representativeness and chemical rationality are guaranteed, the calculation efficiency is improved by dozens of times to hundreds of times, the response time is reduced to the second level or the minute level, and the method has the advantages of being traceable, extensible and high in universality and has wide application prospects. And the material screening and discovery process is effectively accelerated.

A composition for polymerizing a high refractive index resin according to one embodiment of the present specification includes a first compound represented by chemical formula 1; and one or more of a second compound represented by chemical formula 2 and a third compound represented by chemical formula 3. A high refractive index resin according to another embodiment of the present specification includes a first unit represented by chemical formula 11; and one or more of a second unit represented by chemical formula 12 and a third unit represented by chemical formula 13.

The application discloses a kind of microspheroidal high-entropy spinel type ferrite wave-absorbing materials and preparation method thereof, belong to electromagnetic wave absorbing material technical field, the preparation method includes with the designed molar ratio six metal nitrate is weighed and dissolved in deionized water, then add ammonium fluoride, urea, after stirring, the obtained solution is hydrothermal reaction at a certain temperature for a certain time to obtain precursor, the precursor is calcined to obtain microspheroidal high-entropy spinel type ferrite.The obtained wave-absorbing material is single-phase spinel structure, micron-sized spherical morphology, its chemical formula is MFe2O4;Wherein M=Co, Ni, Cu, Zn, Cr.The microspheroidal high-entropy spinel type ferrite wave-absorbing material and preparation method thereof are used, and the performance of pure ferrite wave-absorbing material can be effectively improved, with the characteristics of simple preparation, strong absorption performance, absorption frequency bandwidth.

An organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising a light emitting layer including one or more compounds of Chemical Formula 1, one or more compounds of Chemical Formula 2, and one or more compounds of Chemical Formula 3:wherein: X′1 is N and X′2 is O, or X′1 is O, and X′2 is N; X″ is O or S; one of R′1 to R′7 is linked with Chemical Formula 2A:one of R″1 to R″10 is linked with Chemical formula 3A, and the rest are hydrogen or deuterium:Ar1, Ar2, Ar′1, Ar′2, Ar″1, Ar″2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and the other substituents are as defined in the specification.

Disclosed are a resist underlayer composition and a method of forming a pattern using the same, the resist underlayer composition including a polymer including a structural unit represented by Chemical Formula 1, a structural unit represented by Chemical Formula 2, and a structural unit represented by Chemical Formula 3, and a solvent. [Chemical Formula 1] [Chemical Formula 2] [Chemical Formula 3]

A compound for an organic optoelectronic device, a composition for an organic optoelectronic device including the same, an organic optoelectronic device, and a display device, the compound being represented by a combination of Chemical Formula 1 and Chemical Formula 2,

The invention provides a method for eliminating residual alkali on the surface of a positive active material and generating a functional film-forming pre-metallization agent in situ and application thereof, and the method comprises the following steps: dissolving halogenated carboxylic acid in an organic solvent to obtain a mixed solution; mixing a positive electrode active material with the mixed solution, and reacting to obtain a positive electrode active material with a pre-metallization agent attached to the surface; wherein the pre-metallization agent is halogenated carboxylic acid metal salt, and the chemical general formula of the pre-metallization agent is Xm-R-(COOM) n; the chemical general formula of the active substance is LiNi < y > Co < z > Mn Q O < 2 > or M 'Li < x > Ni < y > Co < z > Mn Q O < 2 >; through treatment by the method, residual alkali on the surface of the positive electrode active material can be eliminated, and meanwhile, a pre-metallization agent is generated in situ on the surfaces of particles; the pre-metallization agent can be used as an alkali metal supplementing agent to improve the energy density of the electrochemical energy storage device, and MX generated by reaction with the electrolyte can be functionally formed into a film, so that the cycling stability of the electrochemical energy storage device is improved.

The invention discloses an air-stable sulfide solid electrolyte as well as a preparation method and application thereof, and relates to the technical field of solid-state lithium batteries. The chemical formula of the sulfide solid electrolyte is Li < 5.4 > P < 1-x > S < 4.4 > M < x > Cl < 1.6-y > X < y >, x is greater than 0 and less than 0.08, y is greater than 0 and less than 1, and M is selected from at least one of Fe, Zn, Ge, Zr, Sn, Ca, Mg, Ti or Ag; x is selected from at least one of F, Cl, Br and I. According to the sulfide solid electrolyte disclosed by the invention, through double-element doping of metal elements and halogen, the surface energy of a material is reduced, water molecule adsorption is inhibited, meanwhile, the ionic conductivity of the sulfide solid electrolyte can be obviously improved, and the conductivity of the sulfide solid electrolyte is not obviously attenuated in a high-humidity environment.

The present invention relates to the technical field of catalysts, and specifically relates to a high-activity cerium-zirconium composite oxide, and a preparation method therefor and a catalytic application thereof. The cerium-zirconium composite oxide has a general chemical formula of CexZryTzO2-αRδ, wherein, in terms of molar content, 0<x≤0.95, 0<y≤0.95, 0<z<0.3, x, y, and z satisfy x+y+z=1, 0≤α≤0.2, and 0≤δ≤0.1. The surface of the cerium-zirconium composite oxide contains adsorbed oxygen species, wherein an XPS peak intensity ratio of adsorbed oxygen to lattice oxygen, i.e., IOads / (IOads+IOlatt), is 0.3-0.8. In the present invention, the generation of more adsorbed oxygen species on the surface of the cerium-zirconium composite oxide is induced by constructing a non-uniform rare earth element doping structure and a grain boundary defect structure, and regulating and controlling the surface acidity and alkalinity. The adsorbed oxygen species on the surface can directly act as active oxygen to participate in a low-temperature catalytic reaction process, thereby promoting the activation of free O2, improving oxygen mobility and low-temperature co-catalytic activity, inhibiting the migration, agglomeration and growth of precious metals at high temperatures, and synergistically improving the high-temperature dispersity and catalytic activity of precious metals.

The invention discloses an indium-based metal-organic framework material based on a pyridine hexacarboxylic acid ligand as well as a preparation method and application of the indium-based metal-organic framework material, the chemical formula is {[NH2Me2] 2 [In4 (mu2-O) (H6L) 2 (H2O) 2]. 3DMF. 10H2O} n, and H6L is an organic ligand 4, 4 ', 4' '-(pyridine-2, 4, 6-triyl) triisophthalic acid. The material has excellent thermal stability and chemical stability, and due to the frame charge characteristic and the excellent pore structure of the material, the metal organic frame material shows efficient dye selective adsorption and separation performance, can selectively adsorb cationic dye methylene blue MB and repel anionic dye methyl orange MO at the same time. In conclusion, a new design thought is developed for the novel indium-based metal organic framework material based on the pyridine hexacarboxylic acid ligand, and meanwhile, a new candidate is provided for developing a high-efficiency dye wastewater purification material.

A resin, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are disclosed herein. In some embodiments, the resin includes a unit of Chemical Formula 1 and a unit of Chemical Formula 2wherein, in Chemical Formulae 1 and 2, Ar1, Ar2, R1 to R3, r1 to r3, L1, L2, X1 to X10, X′9, X′10, Z1 to Z6, La, La′, La″, La′″, a, b, c, d, p, q, t, t′, m, n, m′ and n′ are defined herein.

To overcome the technical problems existing in the prior art ternary material, the present disclosure provides a ternary material, the chemical formula of which is LiNi 1‑x‑y Co x Mn y M a O2, wherein 0 < x ≤ 0.1, 0 < y ≤ 0.1, 0 < a ≤ 0.05, M is selected from one or more of Zr, Ti, Zn, Mg, Ta, V, W, Al and B; the ternary material comprises polycrystalline particles; in the X-ray diffraction spectrum of the ternary material, the (108) diffraction peak at a diffraction angle 2θ of (64±0.5)° and the (110) diffraction peak at a diffraction angle 2θ of (65±0.5)° satisfy the following relationship: The present disclosure provides a ternary material, and the satisfaction of this relationship can ensure that the material has good crystallinity and stability of layered structure, so that the prepared ternary material has high cycle life, rate performance and specific capacity.

The invention relates to the technical field of battery materials, in particular to a Br-doped Y / Zr-based sulfide solid electrolyte and a preparation method and application thereof.The chemical formula of the Br-doped Y / Zr-based sulfide solid electrolyte is shown as the formula (I): Lia (YxZr1-x) bClcBrySd, wherein 0.5 < = (a + b) / (c + d) < = 1; gt; 0, bgt; 0, cgt; 0, dgt; 0; 0 lt; xlt; 1; 0 lt; and y < = c. According to the invention, by introducing Br <->, the lattice volume is expanded, the interstitial space in the crystal is improved, and the transmission path of Li < + > is expanded, so that the Li < + > migration energy barrier is reduced, and the conductivity of the solid electrolyte can be improved to a certain extent; a synergistic effect can be achieved through Y / Zr, so that an originally compact lattice framework is slightly expanded, and a smoother conduction path is constructed for ions Li < + >; on the other hand, crystal transformation of Zr can be inhibited through Y, the interface stability is improved, and finally the solid electrolyte has high conductivity and high interface stability.

This invention discloses a polyoxometalate that catalyzes the Knoevenagel reaction, its preparation method, and its applications. The chemical formula of the polyoxometalate that catalyzes the Knoevenagel reaction is: H3[K(H2O)6][K2(H2O) 10 ]2[Cu(en)2(H2O)2][Cu(en)2(Nb6O 19 Cu(en))2·24H2O, where en = ethylenediamine; the polyoxometalate crystals catalyzing the Knoevenagel reaction belong to the triclinic crystal system with space group P-1; the polyoxometalates catalyzing the Knoevenagel reaction prepared in this invention exhibit excellent heterogeneous catalytic performance in the highly efficient Knoevenagel condensation reaction, showing high yield and high stability under isothermal conditions at a 1:1 substrate ratio and over a wide substrate range. The superior catalytic ability of the polyoxometalates catalyzing the Knoevenagel reaction can be attributed to the presence of dense and effective basic sites on the surface of the heteropolycationic chain, and the increased contact frequency between the organic-inorganic hybrid catalyst and the substrate.

The present disclosure provides an organic compound represented by the Chemical Formula 1 and an organic light emitting element including the same. Specifically, there may be provided an organic light emitting element having high efficiency or long lifespan by including a first electrode, a second electrode, and an organic material layer positioned therebetween, where the organic material layer includes an organic compound represented by the Chemical Formula 1.

This application provides a temperature-stable low-dielectric silicate LTCC material and its preparation method, relating to the field of low-dielectric microwave dielectric ceramics technology. The low-dielectric silicate LTCC material has the following chemical formula: x Na2O- y CaO- z SiO2- m CaSnSiO5- n The compound of B2O3 was prepared, wherein 0.8 ≤ x ≤1.2, 1.8≤ y ≤2.2, 2.9≤ z ≤3.3, 0.6≤ m ≤1.5, 0.03≤ n The dielectric constant is ≤0.1; the chemical formula of its main crystalline phase is Na2Ca2Si3O9. The temperature-stable low-dielectric silicate LTCC material prepared using the above method overcomes the defect of poor temperature stability in the synthesis of low-dielectric microwave dielectric ceramics in existing technologies. The prepared low-dielectric silicate LTCC material has the characteristics of low dielectric constant, temperature stability, and a sintering temperature below 950℃. It has the advantages of simple synthesis process, stable main crystalline phase composition, and low raw material price, making it a suitable low-dielectric LTCC material for millimeter-wave communication.

This specification provides novel acetylene compound derivatives, compositions containing such compounds, methods for producing the sames, and uses thereof. The acetylene compound derivatives are compounds of the following chemical formula (I), or their tautomers, stereoisomers, prodrugs, crystalline forms, isotopically labeled forms, pharmaceutically acceptable salts, hydrates, or solvates. The compounds and compositions of the present invention can be used in the treatment of polθ-mediated diseases or disorders, particularly cancer. JPEG2026522774000373.jpg51149

A resist underlayer composition, a method of forming a pattern utilizing the resist underlayer composition, a system of forming a pattern utilizing the resist underlayer composition, and a resist underlayer of the resist underlayer composition are disclosed. The resist underlayer composition may include a polymer including a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2 and a solvent.

Provided is a bismuth compound for a photoresist, the bismuth compound being represented by chemical formula 1: <Chemical formula 1> In chemical formula 1, R1 to R5 are each independently selected from the group consisting of: hydrogen; deuterium; a C1-C20 alkyl group substituted or unsubstituted with at least one among deuterium, a halogen, and a cyano group; and a C6-C20 aryl group substituted or unsubstituted with at least one among deuterium, a halogen, and a cyano group, and at least one of R4 or R5 is a C1-C20 alkyl group substituted with at least one of a halogen or a cyano group.

The invention discloses a zinc transition metal coordination polymer and a preparation method and application thereof, and relates to the technical field of metal-organic framework material photocatalysts, the chemical formula of the zinc transition metal coordination polymer is [Zn2 (L) 2 (byp)] n, and the zinc transition metal coordination polymer is prepared from 3, 3 '-(1, 2-phenyl dimethylene diether) dibenzoic acid ligand (H2L), 1, 2, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1, 3, 4-tetramethyl-1 The polymer is prepared by co-dissolving 1, 5-bis (2-methyl-1-imidazolyl) pentane ligand (pyp) and Zn (Ac) 2.6 H2O in an aqueous solution, and the polymer has a wide prospect in application of photocatalytic degradation of antibiotics as a photocatalyst.

This invention provides novel stem cell activators, topical skin agents containing the aforementioned stem cell activators, and skin cosmetics containing the aforementioned stem cell activators. The stem cell activator of this invention comprises at least one compound selected from compounds (including optically active agents) shown in formula (1), salts of the aforementioned compounds, and hydrates thereof as active ingredients. In the following formula, R... 1 R 2 Represents a hydrogen atom or a hydrocarbon group. R 3 Represents a hydrogen atom or an organic group. n represents an integer greater than or equal to 1. The above hydrocarbon groups may have substituents. [Chemical Formula 1]

Disclosed are an additive for a thermal management fluid, the additive including a phosphate-based compound wherein the phosphate-based compound satisfies Chemical Formula 1, wherein the R groups in Chemical Formula 1 are each independently hydrogen or a functional group comprising 1 to 10 carbon atoms, and a thermal management fluid composition including the same.

The present invention provides: a compound represented by chemical formula 1; a method for recovering same; a material for an organic electric element, containing chemical formula 1 and chemical formula I; and an organic electric element comprising a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. A compound of chemical formula 1 or a mixture of compounds represented by chemical formula 1 and chemical formula I is included in the organic layer, and thus the driving voltage of the organic electric element can be lowered and luminous efficiency and lifetime can be improved.

The present invention relates to a composition for an organic optoelectronic device, an organic optoelectronic device, and a display device, wherein the composition comprises a first compound represented by chemical formula 1 and a second compound represented by chemical formula 2. The details of chemical formula 1 and chemical formula 2 are as defined in the specification.