92results about "Silver organic compounds" patented technology

The invention discloses a mechanochemical synthesis method of an N-heterocyclic carbene metal assembly, and relates to the technical field of chemical synthesis. The method comprises the following steps: mixing N-heterocyclic carbene precursor salt, silver oxide and alkali, adding grinding balls, and carrying out ball milling; and dissolving in a solvent, centrifuging, concentrating under reduced pressure, adding into a precipitant, centrifuging and drying in vacuum to obtain the N-heterocyclic carbene metal assembly. The method is used for synthesizing various types of metal supramolecular assemblies through one-pot ball milling under the condition of no solvent at the ambient temperature, and is carried out under the condition that the method is simpler and milder than other synthesis processes, and the yield is higher. Compared with harsh reaction conditions of a solution method, the solid ball milling method is simple and convenient to operate and rapid in reaction, and generation of by-products formed by AgI ions and a polar solvent is avoided. The problems that in the prior art, the reaction condition for preparing the N-heterocyclic carbene metal assembly is harsh, and by-products are likely to be generated are solved.

The invention relates to a metal complex acceptor material, an exciplex thereof and application. The invention relates to a metal complex acceptor material, which is a compound with a structure as shown in a formula (I), the metal complex acceptor material is matched with an organic donor material to form an exciplex luminescent material, the exciplex luminescent material is applied to an organic light-emitting diode, the driving voltage is lower, the luminous efficiency is higher, and the service life of a device can be prolonged. The compound has potential to be applied to the field of organic electroluminescent devices. # imgabs0 #

Provided are powder of a pure disilver hydrogen citrate-containing composition in powder form, having excellent solubility, and a method for easily obtaining the disilver hydrogen citrate-containing composition with high efficiency. In addition, provided are an antibacterial agent or antiviral agent, containing the disilver hydrogen citrate-containing composition, and a method for producing the same.The method for producing a disilver hydrogen citrate-containing composition of the present invention includes the following processes (1) to (3):(1) preparing a reaction mixture containing a silver compound and citric acid, the reaction mixture having a pH of 2.0 to 5.5;(2) precipitating the disilver hydrogen citrate-containing composition from the reaction mixture; and(3) collecting the precipitated disilver hydrogen citrate-containing composition.

The present invention relates to poly(melamine-silicate) derivatives as biocidal disinfection and decontamination agents, and to methods for their production and use. More specifically, the invention relates to halogenated adducts of poly(melamine- silicate) with metal oxides.

The present invention is directed to compositions comprising the Ag2S quantum dots of the invention and to methods for use thereof, such as for the treatment and / or prevention a cell or tissue damage and / or a disease or condition in a subject associated therewith. Further, pharmaceutical or cosmetic compositions comprising Ag2S quantum dots of the invention, and articles (e.g. cosmetic / medical article) comprising same are also provided.

Provided is a light-emitting element having a low driving voltage and high reliability. The light-emitting element includes a light-emitting layer between an anode and a cathode, and a first layer between the light-emitting layer and the cathode, the first layer containing an organic compound and a metal. The metal belongs to any one of group 3 to group 13 in the periodic table. The organic compound and the metal are a SOMO-forming combination.

Disclosed are compounds, particularly compounds capable of sensing and / or imaging glycans (such as sialic acid, etc., such as mono-sialic acid, di-sialic acid, tri-sialic acid, polysialic acid) and / or cancer cells and capable of distinguishing between cancer cells and normal cells. The compound is a d8 or d10 metal complex or a salt thereof. The metal complexes may bind to glycans (such as, for example, monosialic acid, disialic acid, trisialic acid, and polysialic acid, etc.) and / or cancer cells. The combination interaction induces the accumulation of the metal complex and the self-assembly of the supramolecules, thereby causing the change of the photophysical properties of the metal complex.

The present invention provides a metal-ligand protected silver nanocluster and its preparation and application in remote laser ignition. The metal-ligand protected silver nanocluster of the present invention is composed of RS ‑ and [(TC4A)6(V9O 16 )] 11‑ binary mixed ligand protected Ag 14 nanoclusters, with the molecular formula {Ag 14 [(TC4A)6(V9O 16 )](RS)3}. The structure and composition of the silver nanoclusters synthesized by the present invention are clear and novel; the preparation steps are simple, the preparation conditions are mild, and the raw materials are easily available, having the potential for industrial production; the obtained silver nanoclusters have excellent photothermal conversion performance, have good photothermal conversion effect and rapid heating rate under the irradiation of 660 nm laser, and have potential application value in the field of laser remote ignition materials.

An agent for an arrest of dental caries is a silver complex fluoride (SCF) of the structure: [Ag(1,3,5-triaza-7-phosphaadamantane)2]F, (Ag(PTA)2F). The agent effectively arrests dental caries and promotes remineralization of carious lesions. The agent results in minimal staining of teeth and tissue inflammation. The therapeutic agent can be applied selectively to a site of caries or other damaged tissue in the oral cavity.

The invention relates to organic electroluminescent materials and devices. The present disclosure provides carbene emitters of formula (I) wherein the ligand LigA has one or more electron withdrawing substituents; an organic light emitting device (OLED) comprising an anode, a cathode, and an organic layer disposed between the anode and the cathode, the organic layer comprising a compound of formula (I); and a consumer product comprising an OLED comprising a compound of formula (I): Formula (I).

The present disclosure provides amide M carbene emitters of Formula (I); organic light emitting device (OLED) comprising an anode, a cathode, and an organic layer, disposed between the anode and the cathode, comprising a compound of Formula (I); and consumer products comprising an OLED comprising a compound of Formula (I):

To provide powder of a powdery pure disilver hydrogen citrate-containing composition having excellent solubility, a method of obtaining conveniently and efficiently the composition containing disilver hydrogen citrate, an antibacterial agent or an antiviral agent that contains the composition containing disilver hydrogen citrate, and its manufacturing method.SOLUTION: A manufacturing method of a composition containing disilver hydrogen citrate of the present invention comprises: (1) a step of adding a silver compound and citric acid in such an amount that the disilver hydrogen citrate reaches a saturation amount, to a solvent, forming a reaction liquid, (2) a step of adding a basic agent to the reaction liquid and controlling pH to 2.0 to 5.5 to precipitate a composition containing disilver hydrogen citrate, and (3) a step of recovering precipitated composition containing disilver hydrogen citrate.SELECTED DRAWING: Figure 1

An antimicrobial agent with synergistic antimicrobial effects, comprising iodide ions encapsulated within silver cages, as well as its preparation method and application, relates to the technical field of antimicrobial materials. The antimicrobial agent utilizes a 16-core silver cage as its basic structural unit, encapsulating iodide ions within the cages and assembling them into a one-dimensional chain structure using thiols as connectors. This antimicrobial agent, by encapsulating iodide ions within the silver cages, achieves diversified antimicrobial material performance and structure through the synergistic action of multiple antimicrobial mechanisms.

Pharmaceutical compounds have anti-inflammatory activity. A pharmaceutical composition may include a therapeutically effective amount of the compound(s) and a pharmaceutically acceptable vehicle. A method of treating hemochromatosis, hyperammonemia, or a disorder associated with chronic inflammation or a cancer, involves administering the pharmaceutical composition to an individual in need thereof. In another aspect, a method of inhibiting formation of metal oxides or reducing metal reactivity comprises contacting a metal with an effective amount of the compound(s).

A compound including a first ligand LA of Formula I,is provided. In Formula I, moiety A is a monocyclic ring or a polycyclic fused ring system; moiety B is a polycyclic fused ring system having at least three rings; each of Z1 to Z4 is C or N; K is a direct bond or a linking group; each R substituent is hydrogen or a General Substituent defined herein; at least one RA includes a non-aromatic polycyclic group; LA is coordinated to a metal M; Z1 forms a dative bond with M; and Z2 forms an anionic bond to K. Formulations, OLEDs, and consumer products containing the compound are also provided.

The invention discloses a thiacalix [4] arene protected copper-silver nanocluster material for electroreduction of CO2 and a preparation method of the thiacalix [4] arene protected copper-silver nanocluster material, and belongs to the technical field of organic-inorganic hybrid catalysts. The copper-silver nanocluster material is directly synthesized by adopting a simple one-pot solvothermal method, the operation is simple and convenient, the period is short, and the yield is high. The prepared copper-silver nanocluster material has Oh symmetry, the molecular structure of the copper-silver nanocluster material is composed of a truncated cube inorganic silver inner core and peripheral ligands, large ligands cover and passivate large faces in the cube inner core, small ligands cover and passivate small faces in the cube inner core, and a double-hydrophobic protection shell is formed. And silver atoms of the chamfered surfaces are exposed, so that symmetrical construction of the cluster structure and ordered exposure of sites are realized, and synthesis of the copper-silver nanocluster material with both stability and activity is effectively ensured. The Faraday efficiency of reducing CO2 into CO through electro-catalysis under the condition that the copper-silver nanocluster material is stable reaches 97.76%.

The invention discloses a Salen ligand, a carbene compound and a preparation method of the Salen ligand and the carbene compound, and belongs to the technical field of chemical synthesis. The chemical structural formula of the Salen ligand is shown as a formula I, and the formula I is # imgabs0 #; in the formula I, M comprises any one of Pd, Ni, Cu and Zn; r comprises any one of methyl, ethyl and n-butyl; r'comprises any one of C1-C5 alkyl, phenyl and biphenyl; and X comprises PF6. Salen and carbene are combined to realize concerted catalysis, stability enhancement and multifunctional integration, the structure adjustability and metal coordination capability of the Salen ligand are retained, high reaction activity and stability of carbene are introduced, a multifunctional composite system is formed, the catalytic activity of the single Salen ligand is remarkably improved, and the Salen ligand has a wide application prospect. The application field of the Salen ligand is widened, and the technical problem that Salen is rarely researched in the carbene field is solved.

The invention relates to the technical field of developing materials, and discloses a preparation method and application of a luminescent nanocluster, the preparation method comprises the following steps: step 1, dissolving a metal precursor in methanol to prepare a metal precursor solution, the metal precursor being selected from silver nitrate, copper nitrate or a combination thereof; step 2, adding 4, 6-dimethyl-2-mercaptopyrimidine into the metal precursor solution, and carrying out a stirring reaction to form a complex; 3, adding sodium hydroxide into the reaction mixture, and continuously stirring until a luminescence phenomenon occurs; step 4, carrying out centrifugal treatment on the reacted solution, and separating to obtain an upper solution and a lower precipitate; step 5, respectively collecting the upper solution and the lower precipitate redissolved by methanol, and standing; step 6, obtaining a high-luminescence nanocluster crystal in a natural volatilization or standing and airing mode; the absolute luminous quantum efficiency of the material prepared by the invention is 60% or above, and some absolute luminous quantum efficiencies are even close to 100%; the light-emitting wavelength can be adjusted from yellow-green to red, the latent fingerprint showing precision is extremely high, the third-level characteristics of fingerprints can be clearly shown, the advantages of being simple in synthesis process, low in cost, small in pollution and the like are achieved, and wide application prospects are achieved in the technical field of new-generation fingerprint detection.

The present invention relates to Ag-based organic coordination nanoparticles, a method for producing the same, a photoresist composition and use thereof. m (R) n (Q) x ] y The production method involves placing a silver salt and a primary organic ligand in a sample bottle, dissolving them in an organic solvent, stirring for a certain period of time under specific temperature conditions, filtering, concentrating, crystallizing by cooling or evaporating, and finally recrystallizing in an organic solvent to obtain Ag-based organic coordination nanoparticles. This nanoparticle composition can be used as an electron beam, mid-UV, deep UV, and EUV photoresist.

Disclosed are a metal-organic framework composite and a preparation method and use thereof. The metal-organic framework composite includes a cyclodextrin metal-organic framework (CD-MOF) material, and nano-silver and caffeic acid that are loaded in the CD-MOF material; wherein the nano-silver is loaded at 4% to 5% of a total mass of the composite; and caffeic acid is loaded at 11% to 12% of the total mass of the composite. The method for preparing the metal-organic framework composite includes: placing a CD-MOF material in an ethanol solution containing silver nitrate to obtain a first mixture, and subjecting the first mixture to a dynamic contact reaction in the dark to obtain a CD-MOF loaded with nano-silver; and placing the CD-MOF loaded with nano-silver in an ethanol solution containing caffeic acid to obtain a second mixture, and subjecting the second mixture to an incubation in the dark to obtain the composite.

An organometallic compound represented by Formula 1wherein, M1 to M4 are each independently a first-row transition metal, a second-row transition metal, or a third-row transition metal; X1 and X2 are each independently C(R5)(R6), Si(R5)(R6), N(R5), O, S, Se, or Te; W1 to W4 are each independently N(R7)(R8), P(R7)(R8), S(R7), a C5-C60 carbocyclic group unsubstituted or substituted with at least one R10a, or a C1-C60 heterocyclic group unsubstituted or substituted with at least one R10a; L1 to L6 are each independently a C1-C30 alkylene group unsubstituted or substituted with at least one R10a, a C5-C60 carbocyclic group unsubstituted or substituted with at least one R10a, or a C1-C60 heterocyclic group unsubstituted or substituted with at least one R10a, a3 to a6 are each independently an integer from 0 to 3, and R1 to R8 and R10a in Formula 1 are as described herein.

The invention belongs to the technical field of nano materials, and provides a synthesis method and application of a p-tert-butyl thiacalix [4] arene protected silver cluster, and the synthesis method comprises synthesis of a p-methyl phenyl sulfide silver precursor, preparation of a mixture, synthesis of a compound 1, synthesis of a compound 2 and contrast of the mixture of the compound 1 and the compound 2. The synthesis of the p-methyl phenyl sulfide silver precursor comprises AgNO3, acetonitrile, p-MePhSH, Et3N and an ethanol solution, and the mixture comprises (p-MePhSAg) n, H4TC4A, K2Cr2O7, DMF (Dimethyl Formamide) and PhCOOAg. Aggregation of generated Ag (0) atoms is regulated by regulating and controlling reduction kinetics of DMF to realize regulation and control of a silver core, a compound 1 and a compound 2 are synthesized, the compound 1 shows good photo-thermal conversion performance as a photo-thermal conversion agent, and the compound 2 shows good detoxification capacity as a catalytic degradation agent of nitro aromatic chemical substances.

To provide an extractant for selectively extracting at least one of cuprous salt and silver salt.SOLUTION: The present invention provides a metal salt extractant for extracting at least one of cuprous salt and silver salt. The extractant is a compound represented by general formula (1). In the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a hydroxy group, or a group represented by -NHR', and R' represents a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, or a hydroxy group.SELECTED DRAWING: Figure 1

Provided is a light-emitting element having a low driving voltage and high reliability. The light-emitting element includes a first light-emitting layer and a second light-emitting layer between an anode and a cathode, and a first layer between the first light-emitting layer and the second light-emitting layer. The first layer includes a metal and a first organic compound including an electron-deficient heteroaromatic ring. The metal belongs to any one of group 3 to group 13 in the periodic table.

Provided are compounds of Formula (I) wherein P is a phosphorescent emitter, F is a fluorescent emitter, and L is a covalent linker. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds

The application discloses a thiacalix[4]arene-protected copper-silver nanocluster material for electro-reducing CO2 and a preparation method thereof, and belongs to the technical field of organic-inorganic hybrid catalysts. O h Symmetry, the molecular structure is composed of a truncated cubic inorganic silver core and a peripheral ligand, large ligands cover, i.e. passivate the larger face of the cubic core, small size ligands cover, i.e. passivate the smaller face of the cubic core, forming a double hydrophobic protective shell. The silver atoms on the truncated face are exposed, realizing the symmetrical construction of the cluster structure and the ordered exposure of the sites, and effectively ensuring the synthesis of the copper-silver nanocluster material with stability and activity. The faradic efficiency of the copper-silver nanocluster material for electro-catalytically reducing CO2 to CO reaches 97.76% under the condition of self-stability.

The invention belongs to the field of crossing of nano materials and coordination chemistry, and particularly relates to an Ag27 nano-cluster photosensitizer as well as a preparation method and application thereof. The chemical formula of the Ag27 nano-cluster photosensitizer is C170H167Ag27Cl2N18O6P7, the chemical formula is abbreviated as Ag27 (DPCA) 6 (DPP) 3 (DPPB) 2 (Ac) 3Cl2, and the Ag27 nano-cluster photosensitizer belongs to a monoclinic system; according to the present invention, the space group is C2, the # imgabs0 # alpha is 90 DEG, the beta is 112.278 (7) DEG, and the gamma is 90 DEG, and the composite photocatalytic material Ag27-coated TiO2 formed by the # imgabs1 # Ag27 nano-cluster photosensitizer and the TiO2 has excellent hydrogen production activity, and can oxidize the methanol sacrificial agent into the high value-added product formaldehyde. Under the condition of LED illumination with the wavelength of 365 nm, the photocatalytic hydrogen production rate of 1% Ag27-coated TiO2 and the content of formaldehyde in a solution are respectively 12.13 times and 10.70 times that of TiO2, and the 1% Ag27-coated TiO2 has a good application prospect.

A metal-organic chalcogenolate (MOC) includes silver phenylselenolate functionalized with at least one functional group. The functional group may be methyl (CH3), dimethylamine (N(CH3)2), thiomethyl (SCH3), fluoro (F) trifluoromethyl (CF3), cyanide (CN), carboxy (COOH), nitrito (NO2), or alkoxy (OCxHy). The MOC can be in the form of a single crystal consisting essentially of a nanocluster (0D), a nanotube (1D), or a single monolayer (2D).

A kind of super-large mercaptan silver cluster material with silver triangle as core and its preparation method belong to the technical field of inorganic nanomaterials, the chemical formula of the silver cluster material is: C 114 Ag 104 S 34 O2, belongs to triclinic system, space group is P-1, cell parameter is α=108.5020 (10) °, β=119.4730 (10) °, γ=96.1580 (10) °, the silver cluster material has luminescent property.