335 results about "Organic molecules" patented technology

The invention relates to an organic molecule for the application in optoelectronic devices. According to the invention, the organic molecule hasa first chemical moiety with a structure of Formula I:anda second chemical moiety with a structure of Formula II:wherein W is the binding site of a single bond linking the first chemical moiety to the second chemical moiety,L is selected from a direct bond and a linking group with a structure of Formula BN-I:wherein the dashed lines denote the binding sites as indicated in Formula I, and # represents the binding site of the first chemical moiety to the second chemical moiety.

A surface-modified catalyst, a multilayer cathode and a system for the electrochemical reduction of carbon dioxide in an acidic medium releasing protons are described. More particularly, the surface-modified catalyst, the multilayer cathode and the system comprise least one heterocyclic organic molecule preventing protons from accessing an active site on a surface of the cathode catalyst material to decrease an hydrogen evolution reaction, as compared to the absence of said heterocyclic organic molecule. The use of the surface-modified catalyst, the multilayer cathode and the system for the production of multicarbon products as well as their processes of manufacturing are also described. Finally, also described are methods for electrochemical production of a multicarbon product using the multilayer cathode and the system.

The invention belongs to the field of sodium-ion batteries, and discloses a sodium-ion battery electrolyte and a sodium-ion battery. The sodium-ion battery electrolyte comprises sodium salt, an organic solvent and an organic molecular additive shown in the following formula, wherein R1 to R5 are respectively and independently any one of F, Cl, Br, I, CN, H, OH, SH and NO2. A boron atom in the molecular structure of the additive is used as an electron-deficient center and can be preferentially complexed with anions or solvent molecules in the electrolyte to pre-stabilize an electrode interface; the bond energy of the B-O bond is moderate, so that the oxidation potential of the B-O bond is lower than that of a main body carbonate solvent, the B-O bond can be preferentially decomposed in the first charge-discharge process, and a thin, compact and highly stable positive electrode electrolyte interface film is formed on the surface of a positive electrode; the controllable substituent group on the benzene ring further regulates the decomposition potential of molecules through an electronic effect, so that the film forming time and the film property can be precisely regulated and controlled. The stable CEI can effectively inhibit continuous decomposition of the electrolyte at high temperature and high pressure, and the cycling stability of the battery in the high-temperature and high-pressure environment is remarkably improved.

The invention relates to the technical field of biological medicine, in particular to an organic copper ion complex with high photothermal conversion efficiency and preparation and application thereof.The organic copper ion complex is prepared by dissolving reactants in an organic solvent, reacting for a period of time, washing, drying and purifying to obtain pure organic molecules; the novel organic copper ion complex material is obtained by mixing the copper ions with Cu < 2 + >, the light absorption range is expanded from a visible light region to a near-infrared light region, and the material is simple to prepare, shows good near-infrared light absorption capacity, has excellent photo-thermal and copper ion synergistic sterilization capacity and is suitable for popularization and application in the field of biomedicine.

This invention relates to an integrated electrocapture and conversion catalyst, its preparation method, and its application in the electroreduction of flue gas to produce carbon monoxide. The catalyst consists of gold nanoparticles modified with thiadiazole-based organic ligands, including 2-amino-5-mercapto-1,3,4-thiadiazole, 2-mercapto-5-methyl-1,3,4-thiadiazole, or 2,5-mercapto-1,3,4-thiadiazole. This invention provides a method for preparing the aforementioned integrated electrocapture and conversion catalyst. This method features mild preparation conditions, a simple and clear process, and good reproducibility. The thiadiazole-based organic molecular layer captures carbon dioxide in a reduced state, achieving local enrichment of carbon dioxide. The enriched carbon dioxide is further reduced to carbon monoxide by the gold nanoparticles. In flue gas with a 15% carbon dioxide concentration, a carbon monoxide Faraday efficiency of up to 80.4% can be obtained.

This invention relates to liquid crystal media comprising polymerizable compounds. Specifically, this invention relates to liquid crystal (LC) media comprising a polymerizable component A containing polymerizable compounds, at least one of which is a polymerizable self-aligning additive of formula MES-Ra(I) for vertical alignment, and a liquid crystal LC component B comprising one or more mesocrystalline or liquid crystal compounds selected from formulas CY and PY, wherein the formulas are as follows and defined in the claims, and other additives (HH) comprising organic molecules having groups having at least six of the following formulas.

The invention relates to a process for the production of an organic layer comprising regions with different electronic properties. The process is based on the use of dihydroanthracene, dihydrobenzene, benzol or fluorene precursors functionalised with at least one substituted propargyl alcohol. By subjecting these precursors to a reduction / re-aromatisation reaction and / or to a retro-Favorskii reaction one obtains small organic molecules or polymers having different electronic properties, due to the specific chemical composition generated by the different chemical reactions in which the precursors are involved. Therefore, starting from the same precursor and subjecting it alternatively to the two specified reactions, one obtains products with different electronic properties. i.e. molecules characterised by high energy levels of the highest occupied molecular orbital (HOMO), which have at least one aromatic ring substituted with at least one ethynyl group, and molecules characterised by lower energy levels of the lowest unoccupied molecular orbital (LUMO), which have at least one carbonyl functionality, preferably at least one quinone ring or at least one phenyl with at least one carbonyl functionality. The reactions are carried out in such a way that the final products are incorporated into a single organic layer.

This invention relates to the field of wastewater treatment technology, specifically to a highly efficient adsorbent wastewater treatment agent and its preparation method, comprising the following raw materials in parts by weight: 50-70 parts activated carbon powder, 8-12 parts deionized water, 5-10 parts ammonium bicarbonate, 1-3 parts sodium dodecyl sulfate, 15-25 parts additive A, and 8-15 parts additive B. In this invention, the stably loaded cerium ions can effectively exert their specific coordination and capture effect on heavy metals. The chitosan introduced into the carrier can enhance the electrostatic and chelate adsorption of anionic pollutants and organic molecules. Simultaneously, the well-developed pores formed after shellac carbonization combine with the network structure of chitosan, further increasing the specific surface area of ​​the material and the adsorption capacity of organic pollutants, achieving highly efficient and stable adsorption of heavy metals, dyes, and organic pollutants.

The invention provides a biosensor, a preparation method thereof and a neurotransmitter detection system. The biosensor comprises a substrate and a plurality of sensing units arranged on the substrate, wherein each sensing unit comprises an electrode pair, a boehmite functional layer, a functional organic molecule and an aptamer molecule. The electrode pair comprises a first electrode and a second electrode which are oppositely arranged to form a gap area. The boehmite functional layer is arranged in the gap area so as to connect the first electrode and the second electrode. The functional organic molecules are covalently connected with hydroxyl functional groups of the boehmite functional layer. And the aptamer molecule is covalently linked with the functional organic molecule. The aptamer molecules of different sensing units have different spatial configurations. According to the application, a plurality of sensing units are integrated and aptamer molecules of different sensing units are endowed with differential spatial configurations, so that the core problems of serious cross interference and incapability of synchronously detecting multiple targets caused by similar target molecular structures in multi-neurotransmitter detection of a traditional sensor are effectively solved.

The invention relates to a gas-sensitive sensor technology, and particularly discloses a gas-sensitive sensing device based on a three-dimensional bionic spiral step structure, which comprises a three-dimensional bionic spiral step substrate, a flexible electrode mounted on the inner wall of the three-dimensional bionic spiral step substrate, and a gas-sensitive film deposited on the surface of the flexible electrode. According to the device, trace gas such as volatile organic compounds and the like entering the gas chamber can be guided by the specific three-dimensional bionic spiral stepped structure to bypass along a spiral path for multiple circles and repeatedly sweep over the surface of a gas sensitive film, so that the effective contact opportunity of gas molecules and a sensitive layer is remarkably increased. By simplifying the installation mode of the three-dimensional bionic spiral stepped substrate and the flexible electrode, the background interference of small organic molecules slowly released in the curing and aging process of a traditional adhesive on trace gas detection is avoided. Meanwhile, the idea of parallel connection of multiple sensors is provided, and the problems that an existing gas sensitive sensor of a plane structure is insufficient in low-concentration gas detection sensitivity and high in detection limit are effectively solved.

The invention provides a D-A-D type near-infrared organic molecule as well as a preparation method and application thereof. The compound disclosed by the invention has a near-infrared emission characteristic adaptive to chronic wound diagnosis and treatment and can effectively penetrate through superficial tissues to middle tissues of a wound, and self-absorption interference of the compound is remarkably reduced due to reasonable Stokes displacement; the PDT-PTT performance is excellent, and the application requirements of wound treatment are met. The excellent light diagnosis and treatment activity further guarantees the stability of diagnosis and treatment signals and the energy transmission efficiency. (I).

The invention discloses an in-situ acetylation-co-crystallization method and application of the in-situ acetylation-co-crystallization method in organic molecular structure determination, and the in-situ acetylation-co-crystallization method comprises the following steps: synthesizing a cyclic trinuclear silver (I) complex as a crystallization partner, and carrying out an in-situ acetylation reaction in an organic molecular sample, after the reaction is completed, adding a crystallization partner for co-crystallization; the application of the in-situ acetylation-co-crystallization method in the determination of the organic molecular structure comprises the following steps: preparing a co-crystal from an organic molecule to be detected through the in-situ acetylation-co-crystallization method, collecting crystallographic data of the co-crystal, and analyzing to obtain a crystal structure of an acetylation product of the organic molecule to be detected; and determining the chemical structure and the spatial configuration of the to-be-detected organic molecule according to the crystal structure of the to-be-detected organic molecule acetylation product. The method can be used for structure determination of a series of acetylated organic molecules such as alcohols, phenols, amines and the like.

This invention proposes a combined inhibitor for separating bastnaesite and monazite, along with its method and application. The raw materials for the combined inhibitor include small organic molecules and microbial polysaccharides; the small organic molecules include one or more of oxalic acid, malic acid, tartaric acid, lactic acid, succinic acid, and citric acid; the microbial polysaccharides include one or more of currant gum, guar gum, xanthan gum, and gellan gum. This invention achieves highly selective inhibition of monazite on the mineral surface through the synergistic adsorption and action of the inhibitor, with small organic molecules and microbial polysaccharides as the main components, thereby efficiently separating bastnaesite under mild flotation conditions. It offers advantages such as good selectivity, strong action, low reagent cost, and environmental friendliness.

Provided is the synthesis of 17 novel neutral sp2-sp3 diboron compounds. Diboron reagents are widely utilized as borylation agents for the incorporation of the boron moiety into organic molecules. The incorporation of boron into organic molecules has significant implications in biomedicine and material science. Boron-containing compounds are pivotal in drug design and the creation of novel materials with enhanced properties. The neutral sp2-sp3 diboron compounds are unsymmetrical diborylation agents. These reagents are expected to facilitate the exploration of novel borylation methodologies and potential synthetic applications.

The application discloses a flexible perovskite solar cell based on an in-situ cross-linking organic small molecule and a preparation method thereof, realizes synchronization of a cross-linking process and a perovskite growth process, thereby achieving the effect of small molecule in-situ cross-linking regulation of perovskite crystallization, and can simply prepare a high-efficiency and mechanically stable flexible perovskite solar cell. Based on the in-situ cross-linking strategy, the perovskite thin film growth greatly reduces the dependence on a flexible conductive substrate through a simple doping method, and a perovskite thin film with high crystalline quality, large grain size and low defect density is obtained on the flexible conductive substrate. Based on the perovskite thin film, not only a high-efficiency flexible perovskite solar cell can be prepared, but also the preparation of a large-area flexible device is applicable. In addition, the organic small molecule is aggregated at a perovskite grain boundary after in-situ cross-linking, effectively releases mechanical stress in the bending process, and reduces the Young's modulus of the perovskite thin film, so that the obtained flexible device has excellent mechanical stability.

The invention relates to the technical field of photovoltaic modules, and particularly discloses a tetraphenyl ethylene-benzotriazole derivative compound and application thereof in the photovoltaic field. The absorption spectrum of the tetraphenyl ethylene-benzotriazole derivative compound disclosed by the invention can be subjected to red shift to 420 nm, so that high-energy ultraviolet light can be completely absorbed; the maximum emission wavelength of a fluorescence emission spectrum is more than 440nm and even can reach 500nm, so that the light utilization level of the crystalline silicon solar cell is improved; the absolute light-emitting quantum efficiency is very high, and the converted wavelength can be better utilized by a photovoltaic device. The substituted tetraphenyl ethylene part contained in the derivative compound has AIE performance, and the fluorescence quenching effect of traditional small organic molecules in high concentration, solid state and aggregation state is avoided. The light conversion film can overcome the problem that the fluorescence quantum yield is remarkably reduced in the laminating process, the performance of the film is not affected when the phenomena of precipitation, agglomeration and the like of auxiliaries in the film occur, and the light conversion film is used for preparing a photovoltaic module.

A process for forming composite nanoparticles includes (a) mixing a first liquid with water, the first liquid comprising nanocrystal, hydrophobic organic molecule, or a combination thereof, and an organic solvent, forming particle core comprising the nanocrystal, hydrophobic organic molecule, or a combination thereof suspended in the water; and (b) mixing the particle core suspended in water with a second liquid, the second liquid comprising a stabilizer and the organic solvent, stabilizing the particle core comprising the nanocrystal, hydrophobic organic molecule, or a combination thereof with the stabilizer, and forming the composite nanoparticles. A time delay between steps (a) and (b) is about 2 millisecond (ms) to about 1 second.

This invention discloses a cross-linked cyclodextrin polymer, its preparation method, and its applications, belonging to the field of compound synthesis and separation enrichment technology. This invention employs a Sonogashira coupling reaction to react α, β, and γ cyclodextrins with 2-, 3-, or 6-position fully iodine-substituted cyclodextrins with polyalkynyl groups, respectively, to obtain cross-linked cyclodextrin polymers with large specific surface areas and numerous cyclodextrin cavities. These polymers exhibit good separation effects for organic dyes, small organic molecule pollutants, and harmful components in cigarette smoke.

Organic molecules with free acid groups and a molecular weight of greater than 140 g / mol used in combination with surfactants, are used as processing aids in the formation of extrudates and other molded materials. The compositions of this invention can be used as defined herein, or can be used with prior art processing aids, depending on the end use application. The novel materials and processes provide a useful alternative to the sole use of fluorine-based polymer processing aids.

The invention relates to the technical field of villiaumite, in particular to high-purity villiaumite and a preparation method and application thereof. The purity of the high-purity villiaumite is not lower than 99.999%, a photoelectric device modification layer prepared by combining the high-purity villiaumite with a chalcone derivative can effectively regulate and control the wettability of a perovskite precursor solution, growth is induced through a template effect, and finally a perovskite thin film with high crystallinity and a flat surface is obtained. The high-purity villiaumite can effectively avoid impurity defects and promote ordered anchoring of organic molecules to form an ordered structure, so that efficient interface passivation and charge transfer are achieved, and the carrier mobility is improved. The composite modification layer formed by the chalcone derivative and the high-purity villiaumite constructs a stable interface, ion migration and decomposition are effectively inhibited, and the service life of the device is remarkably prolonged.

This invention belongs to the field of pharmaceutical technology and discloses small organic molecules for reducing copper overload toxicity and their applications. Specifically, it discloses four small organic molecules for reducing copper overload toxicity and methods for doing so. These four small organic molecules are not copper chelators and do not reduce intracellular copper levels, thus not affecting the activity of copper-related enzymes. Furthermore, these four small organic molecules are not copper ion transporters and do not transport copper into cells, thus not exacerbating the cytotoxicity of copper overload.

The application discloses an iron-based catalyst for efficiently synthesizing carbonyl sulfur and a preparation method thereof. The iron-based catalyst is obtained by mixing inorganic iron salt, inorganic nickel salt, a template agent and urea, using a hydrothermal synthesis method and high-temperature calcination. In the process of calcination, the organic molecules in the precursor are decomposed at high temperature and discharged into the environment in the form of gas, promoting the formation of a pore structure of the catalyst. The synthesis method has simple synthesis conditions, rapid reaction, short time consumption, and the obtained catalyst has a carbonyl sulfur conversion rate as high as 100% at 450 DEG C, and is suitable for efficient production of carbonyl sulfur gas.

The invention discloses a near-infrared response self-repairing coating and a preparation method thereof, and relates to the technical field of functional coatings. The invention relates to a near-infrared response self-repairing coating which is prepared from the following components in parts by mass: 100 parts of matrix resin, 1-3 parts of a near-infrared absorbent, 10-20 parts of a self-repairing agent, 8-15 parts of a curing agent, 1-3 parts of a dispersing agent, 0.5-2 parts of a defoaming agent and 20-30 parts of a solvent. The organic molecule near-infrared absorbent with a specific structure is adopted, the compatibility with matrix resin is good, molecular-level uniform dispersion can be achieved, the problem that a traditional inorganic photo-thermal material is prone to agglomeration is solved, meanwhile, the photo-thermal conversion efficiency is remarkably improved, and the defect that a conventional organic dye is insufficient in photo-thermal conversion capacity is overcome.

The application relates to a method for visible light catalytic synthesis of organic compounds based on low-toxicity ZnSe@ZnS core-shell quantum dots. ZnSe@ZnS quantum dots are used as a sensitizer, the surface of the quantum dots is chelated with 4-benzoylbenzoic acid (BP), N,N-diisopropylethylamine (DIPEA) molecules are added to the solution as an electron sacrificial reagent and a substrate organic molecule to construct a quantum dot sensitized electron reduction system. The photocatalytic reduction product can be obtained under 405nm visible light excitation. In the system, the electron transfer and transmission process is studied through a transient absorption spectrum.

The invention discloses a method for evaluating photoelectric conversion efficiency of an organic solar cell material. The method comprises the following steps: firstly, acquiring the stacking morphology of a material by utilizing molecular dynamics simulation and performing molecular slicing; then, constructing a multi-dimensional geometric feature matrix containing internal deformation and external relative positions of characterization fragments and angle features based on a centroid fitting plane; performing dimension reduction processing on the feature matrix by adopting principal component analysis, extracting principal component features reflecting deformation and spatial distance, and performing morphological clustering according to the principal component features to screen effective clustering morphologies; and finally, in combination with the electron coupling value calculated by quantum chemistry and the corrected equivalent distance based on the principal component, establishing a mapping relationship to evaluate the material efficiency. According to the method, by introducing the centroid weight and the deformation parameters, geometric representation errors existing when non-planar and flexible organic molecules are processed through a traditional method are effectively solved, and the prediction precision and robustness of novel organic photovoltaic material screening are remarkably improved.

The invention discloses a chiral phenol calix [4] aryl porous organic molecular cage material as well as a preparation method and application thereof. A chiral calix [4] arene raceme and an acyl chloride chiral auxiliary agent are used as initial raw materials to react to prepare a pair of diastereoisomers, gram-grade separation is achieved through silica gel column chromatography, then the chiral auxiliary agent is removed respectively, and the single enantiomer chiral phenol calix [4] arene compound with the ee value being 99.9% or above can be obtained. The preparation method comprises the following steps of: synthesizing tetraaldehyde chiral phenol calix [4] arene by introducing an aldehyde group unit on the tetraaldehyde chiral phenol calix [4] arene through Duff reaction, and assembling the tetraaldehyde chiral phenol calix [4] arene serving as a construction element with a polyamino organic synthesizer to prepare the chiral phenol calix [4] arene porous organic cage with a larger cavity. The preparation method of the chiral porous organic cage does not need a catalyst, the preparation process is simple, operation is easy and convenient, expansibility is good, the yield is high, and the prepared chiral molecular cage is large in cavity, large in specific surface area and good in repeatability and can be used for chiral recognition and gas adsorption.

The application provides a multimodal luminescent anti-counterfeiting material and a preparation method and application thereof, and belongs to the technical field of luminescent anti-counterfeiting materials. The prepared multimodal luminescent anti-counterfeiting material is prepared by mixing chiral conjugated small organic molecules with double conformation and polymethyl methacrylate polymers, and the anti-counterfeiting material has the characteristics of excitation wavelength dependence, photoactivated room-temperature phosphorescence emission and circularly polarized luminescence. The preparation method is simple. The luminescent molecules and the polymethyl methacrylate are mixed and dissolved in a tetrahydrofuran solution, and are fixed on a carrier by coating, so that the luminescent anti-counterfeiting label can be prepared. The anti-counterfeiting material has unique luminescent performance, is difficult to counterfeit and forge, has high security in the advanced anti-counterfeiting field, and has great application potential.

This invention relates to the field of catalyst technology, and particularly to a method for preparing and applying a self-photosensitive organic molecular catalyst. The method for preparing the self-photosensitive organic molecular catalyst includes the following steps: deprotonating tetrathione with a non-nucleophilic strong base to obtain deprotonated tetrathione; subjecting the deprotonated tetrathione to a nucleophilic substitution reaction to obtain a monotin-substituted tetrathione; subjecting the monotin-substituted tetrathione to a Stille coupling reaction with 5-bromo-isophthalaldehyde to obtain a tetrathione derivative containing multiple aldehyde groups; and reacting the tetrathione derivative containing multiple aldehyde groups with a polyamine via a Schiff base reaction to obtain the self-photosensitive organic molecular catalyst. The self-photosensitive organic molecular catalyst of this invention achieves a synergistic reaction of CO2 reduction and organic molecule oxidation without the need for additional photosensitizers and sacrificial agents.

The invention discloses a crystalline porous organic molecular framework material POM-OFPDT constructed by non-covalent pi accumulation as well as a preparation method and application of the crystalline porous organic molecular framework material POM-OFPDT. The crystalline porous organic molecular framework material POM-OFPDT constructed by non-covalent pi stacking provided by the invention has a capsule-shaped permanent one-dimensional pore channel in the a-axis direction, has good thermal stability, recyclability and high selectivity, and can effectively realize efficient separation of aromatic hydrocarbons / cycloalkanes.

Disclosed are a high-performance natural graphite negative electrode material, a preparation method therefor, and a use thereof. In the negative electrode material of the present invention, a uniform and thin amorphous carbon layer coated on surfaces of each curled flake graphite layer inside the natural graphite in a core can prevent organic molecules in an electrolyte from penetrating into spherical graphite during charging and discharging to generate a new SEI film, thereby preventing delamination of the curled graphite layers inside the spherical graphite; sulfonated graphene in the inner shell has good flexibility, which can alleviate the volume expansion of natural graphite during charging and discharging, improving the cycling performance of natural graphite up to 1500 cycles. An outermost amorphous carbon layer can reduce the specific surface area of the inner sulfonated graphene, preventing reduction of first-cycle efficiency of a lithium-ion battery caused by the graphene coating. In the natural graphite negative electrode material of the present invention, the amorphous carbon layer is uniform and thin, and does not reduce the tapped density and gravimetric capacity of the anode material.