144 results about "Mixed ligand" patented technology

An OLED device comprising a cathode, an anode, and having located therebetween a light emitting layer containing an emitting compound having formula (I): (piq)b M ppy   (I) wherein piq is a phenylisoquinoline group and ppy is a phenylpyridine group bearing at least one further substituent on the pyridine ring, wherein M is Ir, Rh, Pt, or Pd and b is 2 in the case of Ir and Rh and 1 in the case of Pt and Pd.

The invention which belongs to the technical field of new materials relates to a synthetic method of ZIFs, and concretely discloses a method for synthesizing nanometer / micrometer scale ZIFs based on imidazole and its derivatives at room temperature in a concise, efficient and green manner. The method comprises the following steps: dissolving a single imidazole ligand or a mixture of two imidazole ligands in water or an organic liquid to form a solution, adding an alkaline substance to adjust the pH value of the solution, adding a metal salt to form a reaction system, and reacting to obtain the nanometer or micrometer scale ZIFs. The method which allows routine reactants to be utilized and the alkaline substance to be added to adjust the pH value of the system has the advantages of ligand application amount reduction, controllable product size, and high purity of the nanometer / micrometer scale ZIFs. The synthetic method has the characteristics of cheap and easily available raw materials and solvent, and no pollution, and has important meanings to the production and the application of the ZIFs.

Metal-organic frameworks, in particular hybrid zeolitic imidazolate frameworks (ZIFs), devices having hybrid ZIFs, and methods for preparing hybrid ZIFs are disclosed herein. In some embodiments, the method includes preparing a first solution comprising a first imidazolate and a second imidazolate, preparing a second solution comprising a metal ion, and combining the first solution and the second solution to form the hybrid ZIF.

Provided are mixed ligand metal nanoparticle chemical sensors in which metal nanoparticles are encapsulated by at least two kinds of different molecule ligands having a relatively low conductivity and various composition ratios, and a chemical sensor array in which a film of the metal nanoparticle sensor is formed on the substrate. The metal nanoparticle sensor using the mixed ligand improves sensitivity and reaction speed with respect to an analyte, and selectivity with respect to various analytes, and a kind and a composition of a ligand of the mixed ligand constituting the metal nanoparticle sensor are adjusted to allow the high sensitivity nanoparticle sensor to be applied to the sensor array technology, thereby enabling a design of sensor properties as well as systematic access to a configuration of the sensor array the most efficient for the analytes.

The invention provides a preparation method for synthesizing metal organic framework UiO-66 adsorbents by the aid of mixed ligands. The preparation method includes mixing zirconium sources and regulators with one another and then dissolving the zirconium sources and the regulators in solvents to obtain solution A; uniformly dissolving 2-aminoterephthalic acid, terephthalic acid and solvents to obtain mixed ligand solution B; dropwise adding the solution A into the solution B at the constant speed to obtain solution C; injecting the solution C into reaction kettles with polytetrafluoroethylenelinings and carrying out crystallization at the temperatures of 100-160 DEG C for 18-24 h; carrying out reaction, and then carrying out treatment to obtain target products. As proved by XRD (X-ray diffraction) analysis, the obtained products are UiO-66 adsorbent materials. The preparation method for synthesizing the adsorbent materials has the advantages that the preparation method is simple; theUiO-66 adsorbents synthesized by the aid of the mixed ligands are excellent in chemical and thermal stability; the hydrogen adsorption capacity of the metal organic framework UiO-66 adsorbents can beimproved to a great extent, and effective treatment methods and research directions can be provided to hydrogen adsorption separation and storage.

The invention relates to a synthesis method of a cooper (I) phosphorescent complexes using a 8-phosphinoquinoline derivative as a ligand and application thereof in an organic electroluminescence device. The cooper (I) complexes has an asymmetric bidentate N^P type ligand, and compared with the traditional cooper (I) phosphorescent complexes using a diimine / triphenylphosphine mixed ligand, the invention has better photochemical and electrochemical stability, which ensures that the invention becomes an ideal material for preparing the organic electroluminescence device.

The invention relates to a 1,2,4-triazole and 5-sulfonyl m-phthalic acid mixed ligand cobalt (II) coordination compound magnetic material as well as a preparation method and application thereof. The chemical formula of the coordination compound magnetic material is {[Co3.5(H2O)2(trz)4(sip)].1.5H2O}, wherein trz is 1,2,4-triazole monovalent anion; and sip is trivalent anion of 5-sulfonyl m-phthalic acid. The coordination compound magnetic material is prepared by using a solvothermal method and has higher yield and good repeatability. The coordination compound magnetic material is the first case of cobalt (II) compound containing the 1,2,4-triazole and 5-sulfonyl m-phthalic acid mixed ligand, shows a magnetic transition phenomenon induced by a three-step field under different external magnetic fields, can be used as a molecule-based magnetic material and has great application value in the field of material science.

The invention relates to a rare earth hydrotalcite-like compound / polymer nanocomposite and a preparation method thereof. The method comprises the following steps: firstly prefabricating: dissolving sodium metaaluminate and sodium hydroxide in deionized water to prepare a solution A, dissolving magnesium chloride in deionized water to prepare a solution B, dissolving rare earth oxide with dilute hydrochloric acid and then putting them into the solution B to prepare a solution C, and dissolving a single ligand or a mixed ligand in sodium stearate to prepare a mixed slurry D; then under the action of strong stirring or ultrasonic wave, simultaneously adding the solution A and the solution C dropwisely in the mixed slurry D to prepare a mixed slurry E, aging, conducting pumping filtration, drying the filter cake to obtain a bright fluorescent rare earth hydrotalcite-like compound; and immersing the rare earth hydrotalcite-like compound in a polymer monomer and initiator for 24 hours, and then conducting polymerization to obtain the nanocomposite. The materials disclosed herein has excellent luminescence property of original rare earth complex, and has the advantages of good formability, strong impact resistance, light weight, low cost, easiness in film formation and the like of organic polymer materials.

A method of separating a mixture of carbon dioxiode and hydrocarbon gas using a mixed-ligand, metal-organic framework (MOF) material having metal ions coordinated to carboxylate ligands and pyridyl ligands.

The invention relates to the technical field of photocatalytic hydrogen production, particularly to an AgIn5S8-ZnS quantum dot, a preparation method and uses thereof, wherein the AgIn5S8-ZnS quantum dot can be used for photocatalytic hydrogen production under visible light. The preparation method comprises: weighing silver nitrate, indium nitrate, zinc acetate and different amounts of L-cysteine,mixing and dissolving in an aqueous solution, adjusting the pH value of the solution to 8.5 with NaOH, adding thioacetamide, carrying out ultrasonic stirring, adding MPA corresponding to different amounts of L-cysteine, stirring, carrying out a hydrothermal reaction for 4 h at a temperature of 110 DEG C, and carrying out ethanol centrifugation washing drying after completing the reaction to obtainthe AgIn5S8-ZnS nanometer crystal. According to the present invention, the visible light-irradiated water decomposition hydrogen production experiment results prove that the prepared mixed ligand catalyst has good photocatalytic activity.

The invention relates to a 5-methyl-1H-tetrazole and isophthalic acid mixed ligand cobalt (II) coordination polymer magnetic material, and a preparation method and application thereof. The chemical formula of the coordination polymer magnetic material provided by the invention is {[Co7(H2O)2(mu3-OH)4(mtz)2(ip)4].13 / 4H2O}, wherein mtz is the 5-methyl tetrazole anion with valence of -1, and ip is the isophthalic acid anion with valence of -2. The coordination polymer magnetic material is prepared by solvothermal synthesis, and is high in productivity and good in reproducibility. The coordination polymer magnetic material is the three-dimensional cobalt (II) compound simultaneously including 5-methyl-1H-tetrazole and isophthalic acid mixed ligand, presents continuous two-step field-induced metamagnetic transition and spin-flop transition, which are from antiferromagnetic order to week spontaneous magnetization, in different external magnetic fields, and can be used as molecular-based magnetic material to have great application value in the field of material science.

The invention provides an OLED device containing certain alkali metal cluster compounds with mixed ligands, such compounds, and methods of making them. In particular, the cluster compound is a neutrally charged mixed cluster compound comprising first and second subunits with the first subunit comprising an alkali metal salt of a nitrogen containing a heterocyclic ligand bearing a anionic hydroxy group and the second subunit consisting of an organic alkali metal salt different than the first subunit.

The invention relates to a process for preparing nano rare earth m-hydroxy benzoic acid 8-hydroxyquinoline antibacterial agent which comprises, mixing 0.01 mol of sodium m-hydroxybenzoate with 0.02 mol of 8-hydroxyquinoline with a magnetic stirrer to obtain mixed ligand solution, instilling the mixed ligand solution into 0.01 mol REC136 H2O at 40-70 deg. C, adjusting pH to above 6, reacting 2-6 hrs, ageing 0.5-4 hrs, filtering by suction, removing chloride ions (Cl-) through secondary distilled water washing, vacuum drying 4-10 hours.

Provided are mixed ligand metal nanoparticle chemical sensors in which metal nanoparticles are encapsulated by at least two kinds of different molecule ligands having a relatively low conductivity and various composition ratios, and a chemical sensor array in which a film of the metal nanoparticle sensor is formed on the substrate. The metal nanoparticle sensor using the mixed ligand improves sensitivity and reaction speed with respect to an analyte, and selectivity with respect to various analytes, and a kind and a composition of a ligand of the mixed ligand constituting the metal nanoparticle sensor are adjusted to allow the high sensitivity nanoparticle sensor to be applied to the sensor array technology, thereby enabling a design of sensor properties as well as systematic access to a configuration of the sensor array the most efficient for the analytes.

The invention relates to a mixed valence copper (I / II) complex magnetic material containing a 1, 2, 4-triazole and 5-isophthalic acid mixing ligand as well as a preparation method and an application thereof. The chemical formula of the complex magnetic material is [CuI0.5CuII1.5(H2O) (trz)2(H0.5nip)], wherein trz is a 1, 2, 4-triazole-valence anion, and H0.5nip is a 5-isophthalic acid-1.5 valence anion. The complex magnetic material is prepared by adopting a hydrothermal method and has higher yield and good repeatability. The complex magnetic material is a mixed valence copper (I / II) complex simultaneously containing the 1, 2, 4-triazole and 5-isophthalic acid ligand, has the remarkable spontaneous magnetization behavior at a low temperature, can be taken as a molecule-based magnetic material and has huge application value in the field of materials science.

The invention relates to a tobacco mixing distributing gear and a method for distributing on the distributing gear. A variable frequency device is arranged on the distributing gear, which is connected with a computer control system. The computer system transfers signals to the variable frequency device, and consequently adjusts a drive motor by the variable frequency device in order to change the speed of rollers of a distributing buggy. When distributing and the tobacco materials starting to fall on the distributing buggy, the discharge of the tobacco materials is collected; when the production running for certain time, the discharge of the tobacco materials is collected again and then sent into the computer control system; the cyclic reciprocating time of the distributing buggy is calculated according to the data of weights and discharge of the tobacco materials of the components or module. The time data is sent into the computer control system and then transferred to the variable frequency device after signal transformation in order to change the roller speed of the distributing buggy correspondingly and to achieve cyclic reciprocation. The tobacco mixing distributing gear has the advantages of improving the uniformity of the mixed tobacco and increasing the homogenization degree of the product quality compared with the traditional tobacco mixing distributing gear.

The invention relates to I-III-VI group semiconductor quantum dots, in particular to a synthesis method for an Ag-In-Zn-S / CQDs heterojunction material. The synthesis method comprises the following steps: weighing and dissolving silver nitrate, indium nitrate and zinc acetate dihydrate in deionized water, stirring and dissolving to obtain a clear solution; dissolving a mixed ligand thiohydracrylicacid (MPA) and L-cysteine (Cys) in an aqueous solution; then adding into the clear solution to obtain a mixed solution; adjusting the pH value of the mixed solution with a NaOH solution; then adding thioacetamide and stirring ultrasonically; then adding carbon quantum dots in different amounts; then carrying out a hydrothermal reaction; and after the reaction, carrying out centrifugal drying to obtain the Ag-In-Zn-S / CQDs heterojunction material with different photocatalytic performance by selecting the capacity of the carbon quantum dots and the temperature of the hydrothermal reaction.

The invention discloses a three-dimensional indium coordination polymer containing mixed ligands and a synthesis method and application thereof, relating to three-dimensional indium coordination polymers and synthesis methods and application thereof. The three-dimensional indium coordination polymer containing the mixed ligands is used for solving the technical problem of the existing blue fluorescent organic light-emitting materials that the synthesis cost is high and the thermal stability is poor. The three-dimensional indium coordination polymer containing the mixed ligands has a molecular formula of C66H42In8N6O45 and a structural formula shown in a drawing. The synthesis method disclosed by the invention comprises the steps of putting 2,6-pyridinedicarboxylic acid, terephthalic acid and indium nitrate into distilled water, stirring at room temperature until 2,6-pyridinedicarboxylic acid, terephthalic acid and indium nitrate are mixed uniformly, adjusting the pH value of a system, then, putting the system into a stainless-steel reactor lined with polytetrafluoroethylene, reacting, and then, cooling to room temperature, thereby obtaining a yellow hexagonal crystal, namely the three-dimensional indium coordination polymer containing the mixed ligands. The three-dimensional indium coordination polymer containing the mixed ligands, disclosed by the invention, can serve as a metal organic blue light-emitting material and is applied to the field of preparation of organic light-emitting materials.

The invention relates to a mixed-ligand porous aluminum metal organic framework material and a preparation method thereof and mainly provides an aluminum-metal-containing organic framework material with a mixed ligand and adjustable pore structure, and a preparation method of the organic framework material. The preparation method comprises the following steps: dissolving reactants (inorganic aluminum salt and organic carboxylic acid) in an organic solvent, performing a crystallization reaction on the mixed solution for 3-90 hours at the temperature of 120-220 DEG C, taking out after naturally cooling, and performing suction filtration, washing, drying and roasting to obtain the metal organic framework material with porosity characteristic. The preparation method is simple in process and low in cost, and can be used for preparing the porous aluminum metal organic framework material under a mild condition. The structure of the prepared material with the mixed ligand can be adjusted, and the prepared material has wide application prospect in the aspects of adsorption, separation, catalysis and drug release.

The invention belongs to the field of advanced luminescence materials, and particularly relates to an orange-red fluorescent zinc coordination polymer with mixed ligands, a preparation method of the polymer and an application of the polymer. The polymer takes a single-core cluster [ZnN3(CO2)] (formula VII) and a double-core cluster [Zn2N3(CO2)3(H2O)] (formula VIII) as joints, the joints are connected through organic ligands tpc<-> (formula IV), Hntb2<-> (formula V) and ntb3<-> (formula VI) to form a two-dimensional layered coordination polymerization structure, the color of a crystal sample isorange red under natural light and ultraviolet light of 365 nm, a solid fluorescent spectrum has double emission peaks (578nm and 654nm), the polymer is provided with a typical colored fluorescent material, and a complex aqueous solution has absorption peaks in a visible light area. By the aid of characters and the preparation method of the polymer, the polymer can be used for preparation of novel light-sensitive materials, pigments or coatings and the like, and the polymer has positive significance and values in the aspects of development and application of novel optical materials, related industrial transformation and upgrading and the like.

The invention relates to a 5-methyl-1H-tetrazole / 1,2,3-trimesic acid mixed ligand cobalt (II) complex magnetic material, and a preparation method and application thereof. The chemical formula of the complex magnetic material is [Co2(H2O)(mtz)(btc)], wherein mtz is a 5-methyltetrazole -1-valent anion, and btc is a 1,2,3-trimesic acid -3-valent anion. The complex magnetic material is prepared by a hydrothermal method, and has the advantages of high yield and favorable repeatability. The complex magnetic material is a cobalt (II) complex simultaneously containing 5-methyl-1H-tetrazole 1,2,3-trimesic acid mixed ligand; and the complex magnetic material has obvious spontaneous magnetization behavior at low temperature, and has huge application value as a molecule-base magnetic material in the field of material science.

Disclosed is a metallic pigment composition which can provide, when used in a coating composition, an ink composition or the like, in particular, a water-based coating, a water-based ink or the like, a coating film having a high storage stability, a good adhesiveness, a good chemical resistance and a good color tone. Specifically disclosed is a metallic pigment composition which comprises at least one kind of compound selected from a heteropolyanion compound and a mixed-ligand heteropolyanion compound, an organic oligomer or polymer, and metal grains.

The invention discloses a rare-earth organic coordination polymer constructed by using m-phthalic acid and 2-pyridylformic acid as a mixed ligand, and a preparation method and application thereof. The preparation method is characterized by comprising the following steps: dissolving a rare-earth compound, m-phthalic acid, 2-pyridylformic acid and a nitrogen-containing compound in a solvent, wherein the mol ratio of rare-earth compound to m-phthalic acid is 1:(0.05-15), the mol ratio of rare-earth compound to 2-pyridylformic acid is 1:(0.05-15), the mol ratio of rare-earth compound to nitrogen-containing compound is 1:(0.05-15), and the mol ratio of rare-earth compound to solvent is 1:(500-10000); evenly mixing, regulating the pH value of the reaction system to 5-10 with acid or alkali, and adding the reaction system into a reaction kettle; and heating to 80-300 DEG C to react for 1-240 hours, gradually cooling to room temperature, filtering, washing with water, and drying to obtain the rare-earth organic coordination polymer constructed by using m-phthalic acid and 2-pyridylformic acid as a mixed ligand.

The invention relates to a 5-methyl-1H-tetrazole and 2,3-pyrazinedicarboxylic formic acid mixed ligand cobalt (II) coordination polymer magnetic material, a preparation method and an application thereof. The three-dimensional coordination polymer magnetic material is shown as the chemical formula [Co2(u3-OH)(mtz)(Pyzdc)], wherein the mtz is a 5-methyl-triazole negative monovalent anion; and the Pyzdc is a 2,3-pyrazine dicarboxylic acid negative dianion. The mixed ligand cobalt (II) coordination polymer magnetic material is prepared by a hydrothermal method, thereby having the advantages of high yield and good reproducibility. The mixed ligand cobalt (II) coordination polymer magnetic material is a cobalt (II) compound containing the mixed ligand of 5-methyl-1H-tetrazole and 2,3-pyrazinedicarboxylic formic acid. An obvious varying magnetic behavior occurs to the coordination polymer magnetic material at low temperature. The mixed ligand cobalt (II) coordination polymer magnetic material can be widely used in the field of materials science as a molecular magnetic sensor.

The invention provides a dimensional cadmium polymer containing a mixed ligand as well as a preparation method and an application thereof. The molecular formula of the dimensional cadmium polymer is [Cd(L)(4PBI)]n, wherein L is 4-(1-carboxyethyl)benzoic acid, and 4PBI is 2-(pyridine-4-yl)benzimidazole. The transition complex is prepared by mixing and dissolving L and 4PBI as well as a metal salt in water according to a certain molar ratio, adding a certain amount of sodium hydroxide, sealing in a poly(tetrafluoroethylene) tube, placing the poly(tetrafluoroethylene) tube in a stainless steel reaction kettle, and placing the reaction kettle in a GZX-9030MBE electric heating blower; crystallizing at 50-200 DEG C for 0.1-7 days, and naturally cooling to room temperature to separate out granular crystals. The preparation method of the coordination polymer is simple in process and free of pollution; and the synthesized material is few in defects and high in degree of crystallinity. The polymer containing the mixed ligand has very good potential application prospect in the field of molecular luminescence.

The invention relates to a photocatalyst and a preparation method and application thereof. The preparation method comprises the following steps: mixing a ligand solution and titanate, stirring, and carrying out hydrothermal reaction to obtain the photocatalyst; the ligand solution is a mixed solution of 2-aminoterephthalic acid and 3-aminobenzoic acid, and the mole fraction of the 3-aminobenzoic acid in the ligand is 4-6%. According to the invention, a novel MOFs photocatalytic material is prepared by a mixed ligand method, the photocatalytic performance of the photocatalyst can be adjusted byadjusting the ratio of the two ligands, a novel synthesis method of the photocatalyst is provided, the catalytic activity of the MOFs photocatalyst is effectively improved, and the morphology of theMOFs photocatalyst is regulated. Compared with a pure MOFs photocatalyst, the photocatalytic performance of the defective MOFs obtained by the preparation method is obviously improved, and the preparation process is simple.

The invention comprises neutral multi-functionality assemblies of pharmaceuticals comprising an active medicinal functionality, a transition metal functionality, and an ancillary ligand functionality. An exemplary series of mixed-ligand coordination complexes comprised of copper(II), a drug and an ancillary ligand were made and tested. It is demonstrated that the judicious choice of an ancillary ligand affords a large degree of control over die relative lipophilicity / hydrophilicity of the complex in relation to the uncomplexed drug molecule. The important factors to be considered in the design of such complexes, such as the additive-constitutive nature of the partition coefficient of the ancillary ligand and the relative size of the two types of ligands are disclosed, and methods of designing neutral multi-functionality assemblies of pharmaceuticals are disclosed.

The invention relates to a group of strong fluorescent hydrotalcite containing aluminium which has the simplest chemical formula of (M2+1-xAl3x(OH)-12)An-x / nx / mzB) and a process for preparation. The steps comprise reducing the content of aluminium ion (Al3+) in hydroxide lamellar of the hydrotalcite containing aluminium such as magnesium aluminium hydrotalcite and zinc aluminum hudrotalcite to an appropriate value and simultaneously coordinating ligand which is dissolved or dispersed in interlayer hydrophobicity anion, thereby effectively preventing fluorescence quenching of the aluminium ion (Al3+) which is utilized as a luminous center. And a special combining structure of the ligand or mixed ligand which is mixed in the interlayer anion and the aluminium ion (Al3+) which is embedded on the lamellar increases the dissymmetry of the coordinating aluminium ion (Al3+) which is utilized as the luminous center, simultaneously because the protective action of the hydrotalcite laminate structure, the heat stability of (Al-LLDHs) is increased, thereby obtaining a group of novel high fluorescent hydrotalcite containing aluminium which can emit relative aluminium coordination chelate strong fluorescence is different from the normal hydrotalcite containing aluminium without fluorescence.

Metal-organic frameworks, in particular hybrid zeolitic imidazolate frameworks (ZIFs), devices having hybrid ZIFs, and methods for preparing hybrid ZIFs are disclosed herein. In some embodiments, the method includes preparing a first solution comprising a first imidazolate and a second imidazolate, preparing a second solution comprising a metal ion, and combining the first solution and the second solution to form the hybrid ZIF.

Gold(I) complex with mixed ligands as an anticancer agent. The gold(I) ion is coordinated to a dithiocarbamate ligand and a phosphorus-containing ligand (e.g. phosphines). Also described are a pharmaceutical composition incorporating the gold(I) complex, a methods of synthesizing the gold(I) complex, and a method for treating cancer.