22results about "Iron organic compounds" patented technology

The application discloses a method for synthesizing tervalent tetraaryl iron porphyrin from pyrrole, aromatic aldehyde and ferrous salt, which comprises the following steps: adding anhydrous aluminum chloride, aromatic aldehyde, pyrrole and ferrous salt into DMF under stirring, and then heating and refluxing the reaction mixture for 0.5 hours under nitrogen; removing the nitrogen and continuing to heat the reaction mixture for a certain time; stopping the reaction; cooling the reaction mixture; and placing the reaction mixture at 273K overnight; and finally filtering the reaction mixture to obtain the iron porphyrin.

This invention discloses an iron complex with a triazacyclic nonane macrocyclic skeleton, its preparation method, and its applications, belonging to the field of coordination chemistry. The iron complex has a triazacyclic nonane macrocyclic skeleton with two acetate side groups and one pyridine-N derivative side group. The iron complex exhibits excellent catalytic activity in the aerobic oxidation of N-aryltetrahydroisoquinoline, while also possessing good stability. The solvents for the catalytic reaction are water and acetonitrile, resulting in low pollution. This invention features mild reaction conditions, simple synthesis operations, and straightforward post-processing, meeting the requirements of environmental friendliness and clean production.

This application discloses a dialkylphosphine hybrid salt, its preparation method, and its application. The dialkylphosphine hybrid salt is selected from at least one compound having the chemical formula shown in formula (I). The dialkylphosphine hybrid salt with the composition of formula (I) provided in this application requires a small amount to add, has high flame retardant efficiency for various polymer materials, and is economical. It not only overcomes the disadvantage of low flame retardant efficiency of diethylphosphine salt for polymer materials, but also overcomes the disadvantage of excessive volatility and low flame retardant efficiency of diisobutylphosphine salt for polyesters. It can be widely used in the flame retardant application of various polymer materials that require high-temperature processing.

To provide a novel metal-organic framework with a gas storage function, and a gas storage agent and a gas storage method using the same.SOLUTION: The invention provides a metal-organic framework in which a polyvalent metal ion is bonded to a dianion of a compound represented by formula (1).SELECTED DRAWING: None

The present invention relates to the field of adsorbent materials, and specifically to the use of metal-organic particles (MOF), intended for the selective adsorption of germanium ions in aqueous solutions. The invention also relates to a method for adsorbing Ge ions.

The invention provides an iron-based complex, a preparation method thereof and an ethylene oligomerization catalyst. The iron-based complex is formed by coordination of a ligand and an iron compound, the ligand has a structure as shown in a formula I. In the formula I, R1 and R1'are the same or different and are independently selected from H, C1-C4 alkyl and derivatives thereof, and when the iron-based complex and a cocatalyst form an ethylene oligomerization catalyst and are used for ethylene oligomerization, the generation amount of a byproduct polymer can be reduced.

The application provides a molybdenum-based polyoxometalate-hemin composite nanomaterial and a preparation method and application thereof, and the method comprises the following steps: under room temperature conditions, molybdenum-based polyoxometalate and hemin are mixed by means of manual grinding, and then the obtained mixture is sequentially subjected to centrifugal separation, washing and vacuum drying, so that a solid-phase molybdenum-based polyoxometalate-hemin composite nanomaterial is prepared. 12 The nanocomposite material is synthesized by a simple manual grinding method, and is prepared through the steps of room temperature grinding, centrifugal separation, washing and vacuum drying without the need of complex equipment, high temperature and high pressure or toxic organic solvents. 12 The colorimetric sensor constructed by the nanocomposite material can rapidly and accurately quantitatively detect the AA content in fresh fruits, and has a wide application prospect in the fields of food nutrition analysis, quality control and on-site detection.

The application belongs to the technical field of conjugated diene polymerization, and particularly relates to a phosphine quinoline ligand, a phosphine quinoline iron complex, a preparation method thereof and application thereof in catalyzing conjugated diene polymerization. The phosphine quinoline ligand and the iron complex are respectively shown as formula I and formula II. The iron complex is a bidentate N, P-coordination catalyst, has a single catalytic active center, and can realize high-activity and high-selectivity polymerization of conjugated dienes by regulating ligand electronic effects, space effects and polymerization conditions. The iron complex only needs 5 equivalents of dry methylaluminoxane to be activated, and still maintains high activity at high temperature (100 DEG C). The obtained polyconjugated diene has narrow molecular weight distribution, and microstructure (cis-1, 4, trans-1, 4, 3, 4 or 1, 2) can be accurately regulated. The reaction system is green, environmentally friendly, low in cost and excellent in thermal stability, and is suitable for industrialized production of high-performance elastomer materials.

The purpose of this invention is to provide an ordered inorganic-organic hybrid nanomaterial with high-temperature superconductivity and its preparation method. The method employs a two-step chemical liquid-phase method. The ordered inorganic-organic hybrid nanomaterial has a two-dimensional nanosheet-like microstructure, with its inorganic structural unit being iron-selenium sheets possessing a tetragonal β-Fe3Se4 superstructure, and its organic structural unit being divalent iron organic amine complexes. The resulting ordered inorganic-organic hybrid nanomaterial with a periodic crystal structure has a superconducting critical transition temperature in the range of 26-41 K. The preparation method is simple, the raw materials are readily available, and the thickness of the synthesized sheet-like hybrid nanomaterial is 30-300 nm.

The application belongs to the technical field of new materials, and particularly relates to a Fe(II) spin crossover complex, a crystal and a preparation method and application thereof. The complex has a molecular formula of [Fe(L 1 )(L 2 )]2(ClO4)4·1.5H2O; a ligand L 1 is trans-4-pentylcyclohexyl-2,6-di(1H-pyrazol-1-yl)isonicotinate; a ligand L 2 is 6,6''-2,6-dimethoxyphenyl-substituted terpyridine; the ligand L 1 of the application is a unique rigid head-flexible tail structure, which is helpful to guide a more ordered packing effect; the ligand L 2 provides a highly rigid and planar structural unit, overcomes the crystallization difficulty of a flexible ligand, and stabilizes a supramolecular structure; the obtained crystal exhibits a unique crystal packing and spatial configuration in a spin state transition process at different temperatures, and realizes optimization of a molecular structure and regulation of spin transition characteristics.

The application discloses a kind of double pyrazolopyridine iron (II) complex and synthesis method thereof, belong to the technical field of coordination chemistry synthesis.The method is with aryl hydrazine and aryl formyl acetonitrile as substrate, iron trichloride hexahydrate is used as accelerator, and double pyrazolopyridine iron (II) complex single crystal is synthesized by solvothermal reaction one-pot method in alcohol solvent.The application realizes the synthesis of double pyrazolopyridine three heterocyclic rings without substituent group at position 4 for the first time, and introduces new substituent group such as benzothiazole-2-yl and benzimidazole-2-yl to position 1 and 7, which expands the substituent group types of the compounds.The method has mild reaction condition, and the raw materials are cheap and easy to obtain, and the operation is simple, with medium to good yield, which provides a new way for the synthesis of double pyrazolopyridine complexes.

To provide a sheet containing a coordination polymer and showing rectification characteristics, and to provide a manufacturing method of the same.SOLUTION: A sheet comprises: a coordination polymer-containing first layer containing a first central metal selected from a group consisting of Fe, Co, Ni, Cu and Zn, and a polydentate ligand that coordinates to the first central metal such as 1,3,5-tris-(4-(2,2':6',2"-terpyridyl) phenyl) benzene; and a coordination polymer-containing second layer containing a second central metal different from the first central metal, and selected from a group consisting of Fe, Co, Ni, Cu and Zn, and a polydentate ligand that coordinates to the second central metal such as 1,3,5-tris-(4-(2,2':6',2"-terpyridyl) phenyl) benzene.SELECTED DRAWING: Figure 1

The invention provides an iron-based complex, a preparation method thereof and an ethylene selective oligomerization catalyst. The iron-based complex has a structure as shown in a formula I. In the formula I, R1 and R1'are the same or different and are respectively and independently selected from H, C1-C4 alkyl and derivatives thereof, R2, R3, R4, R2 ', R3' and R4 'are the same or different and are respectively and independently selected from H, C1-C2 alkyl and derivatives thereof, and M is halogen. The ethylene selective oligomerization catalyst composed of the iron-based complex and the cocatalyst can be used for preparing C4-C8 olefins with high selectivity.

The invention provides a method for preparing linear alpha-olefin through ethylene oligomerization. The method for preparing linear alpha-olefin through ethylene oligomerization comprises the following steps: adding a solvent, a cocatalyst and an iron-based complex into a reactor, reacting for 30-60 minutes under the conditions that the ethylene pressure is 0.1-3 MPa and the reaction temperature is 70-90 DEG C, and cooling to obtain an ethylene oligomerization product, the iron-based complex is formed by coordination of a ligand and an iron compound, the ligand has a structure as shown in a formula I, and in the formula I, R1 and R1'are the same or different and are independently selected from H, C1-C4 alkyl and derivatives thereof. According to the method, while a series of linear alpha-olefin products are generated, the generation amount of by-product polymers possibly causing pipeline blockage is reduced.

The application discloses a method for synthesizing alkenyl borate ester compounds through a series reaction of palladium-catalyzed cross-coupling and iron-catalyzed borohydration, and belongs to the field of organic synthesis. The method inserts multiple methylene units into the carbon-carbon sigma-bond of the alkenyl borate ester through a series reaction of palladium-catalyzed cross-coupling and iron-catalyzed borohydration, and meanwhile, a valuable C(sp 2 )‑B functional group is reserved. The method utilizes the universality of the alkenyl borate ester in the cross-coupling reaction, provides an efficient approach for modular and iterative synthesis of C(sp3) homologues of bioactive molecules containing olefin structures, and is expected to accelerate the drug discovery process, applied to efficient preparation of drug molecule homologues and complex organic compounds, and provides a powerful tool for realizing rapid structural derivatization of drug lead compounds.

The invention provides a method for preparing low-carbon-number olefin through ethylene oligomerization. The method comprises the following steps: adding a solvent, a cocatalyst and an iron-based complex into a reactor, reacting for 15-60 minutes under the conditions that the ethylene pressure is 1-3 MPa and the reaction temperature is 60-80 DEG C, and cooling to obtain an ethylene oligomerization product, in the formula I, R1 and R1'are the same or different and are respectively and independently selected from H, C1-C4 alkyl and derivatives thereof, R2, R3, R4, R2 ', R3' and R4 'are the same or different and are respectively and independently selected from H, C1-C2 alkyl and derivatives thereof, and M is halogen. The method can be used for selectively preparing C4-C8 olefin.

The present invention relates to a method for preparing a p-type semiconductor layer, a p-type semiconductor layer obtainable by said method, an organic electronic device comprising said p-type semiconductor layer, a display device comprising said organic electronic device, a metal compound, and the use of said metal compound in a p-type semiconductor layer.

The invention relates to a porous metal-organic framework (MOF) comprising metal ions coordinated to an organic ligand, wherein at least 66% of the metal ions are Iron (III) ions and the organic ligand is 5,5'-methylene diisophthalic acid, to a process for the preparation thereof, and to the use thereof for the controlled release of a substance. The present invention also relates to pharmaceutical compositions comprising such a metal-organic framework.

The present invention provides an iron complex catalyst that is encapsulated in a resin in order to eliminate the necessity of handling or storing the iron complex catalyst, which is unstable in air, under an inert atmosphere, an addition-curable composition containing the same, and a method for producing the same. In such a iron complex catalyst encapsulated in a resin, the iron complex catalyst is a catalyst for hydrosilylation reaction of alkene or a catalyst for dehydrogenative coupling reaction of silane. The addition-curable composition contains the iron complex catalyst encapsulated in a resin. The method for producing the iron complex catalyst encapsulated in a resin includes the step of removing, from a mixture of an iron complex catalyst, a resin, and a solvent, the solvent, thereby obtaining the iron complex catalyst encapsulated in the resin.

The present disclosure relates in some aspects to therapeutic metal complexes comprising a pharmacologically active agent coordinated to a metal. In some aspects, the disclosure further relates to methods of synthesizing the complexes, compositions containing the complexes, and methods of using the complexes, including their administration to subjects. In some aspects, useful features of the complexes include controlling active agent release pharmacokinetics, reducing side effects, and improving safety profiles.