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Coordination polymer molecular aggregate catalyst material containing metalloporphyrin and preparation thereof

A technology of coordination polymers and molecular aggregates, applied in the field of molecular materials and chemical catalysis, can solve the problems of difficult separation of catalysts and reactants/products, complicated preparation process, and difficult product separation, and achieve simple components and structures. The design and regulation, low production environment requirements, and simple and easy preparation technology

Inactive Publication Date: 2008-11-05
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Since the synthesis of metalloporphyrin compounds usually has high requirements on production equipment and reaction conditions, the preparation process is also relatively complicated, especially the separation of products is difficult and the yield is low; solvent problems may be encountered during the catalytic process , catalysts and reactants / products are difficult to separate, so it is urgent to propose new technologies to solve the above difficulties and meet the needs of scientific research and industrial production

Method used

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  • Coordination polymer molecular aggregate catalyst material containing metalloporphyrin and preparation thereof
  • Coordination polymer molecular aggregate catalyst material containing metalloporphyrin and preparation thereof
  • Coordination polymer molecular aggregate catalyst material containing metalloporphyrin and preparation thereof

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Embodiment 1

[0028] Add 0.05 mol / L CdCl to the cleaned Langmuir tank 2 aqueous solution, and then dropwise add about 100 microliters of 0.3 mmol / liter chloroform solution of metal Mn porphyrin at the gas-liquid interface with a syringe. After the chloroform solvent is completely volatilized and the interface coordination reaction is completed (usually takes more than 20 minutes), compress the surface until the surface pressure rises to about 20mN / m. Keeping the surface pressure, a multilayer film of Cd-MnTPyP, a molecular aggregate material containing metalloporphyrin, is deposited on the surface of a clean quartz substrate by using LB film extraction technology.

Embodiment 2

[0030] Add K containing 0.1 mmol / L to the cleaned Langmuir tank 2 PdCl 4 Aqueous solution, then drop about 100 microliters of 0.3 mmol / liter metal Mn porphyrin / PVP complex chloroform solution at the gas-liquid interface with a syringe. After the chloroform solvent is completely volatilized and the interface coordination reaction is completed (usually takes more than 20 minutes), compress the surface until the surface pressure rises to about 20mN / m. Keeping the surface pressure, a multilayer film of PdMnTPyP / PVP, a molecular aggregate material containing metalloporphyrin, is deposited on the surface of a clean quartz substrate by using LB film extraction technology.

Embodiment 3

[0032] The solid (glass, quartz, mica or conductive porphyrin) substrate that has been cleaned and treated hydrophilically with 4% sodium hydroxide is first reacted with 2% bromobenzylsilane in chloroform or methanol solution to form an active bromobenzene The solid substrate modified by silane monolayer film is then reacted with 5% polyvinylpyridine to form a monolayer film covered by polyvinylpyridine on the solid surface. Again, by mixing with 0.1 mol / L CdCl 2 or 0.3 mmol / L K 2 PdCl 4 Coordination reaction is carried out, a layer of transition metal ion layer is combined on the surface of polyvinylpyridine, and it reacts with metallo-Fe porphyrin containing 2 mmol / L tetrapyridyl to form a metallo-porphyrin molecular layer. Finally, the above-mentioned coordination of metal ions and tetrapyridyl metalloporphyrin is repeated to form a Cd-FeTPyP or Pd-FeTPyP molecular aggregate material directly grafted on the surface of the solid substrate.

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Abstract

The invention pertains to the technical filed of molecular materials and chemical catalyzing, in particular to a molecular assembly material for a coordination polymer containing metalloporphyrin and a preparation method thereof. The assembly material is a multi-layer film formed on a solid base on an immiscible gas-liquid or solid-liquid interface by self-assembly technology; the formation and the structure of the assembly material can be adjusted and controlled by changing the reaction precursors (metal ions or the metalloporphyrin) of two phases. The material is fixed on the surface of the solid base in a film state, has the features of molecular material and nano material, thus having relatively high thermal and chemical stability and structural controllability as well as being able to serve as a heterogeneous catalyst with relatively high catalyzing efficiency used for the catalytic oxidation of organics. Meanwhile, the separation of the catalyst and products is extremely simple and a 'plug and play' mode of being able to stop or restart at any time during the process of a catalytic reaction can be realized, thus being extremely applicable to tracing and regulating a catalytic reaction process.

Description

technical field [0001] The invention belongs to the technical field of molecular materials and chemical catalysis, and in particular relates to a coordination polymer molecular aggregate catalytic material and a preparation method thereof. technical background [0002] The research on the preparation of molecular materials by bottom-up molecular assembly technology has shifted from the design, assembly, structure and characterization of physical and chemical properties of molecular materials to function-oriented. According to the structure and characteristics of a single molecule and the interaction between molecules, Design and prepare composite molecular aggregate materials with specific functions, as well as assemble molecular devices and molecular machines to realize the miniaturization, miniaturization and high-density multifunctionality of products, and simulate the material and energy transfer process of organisms. Molecular assembly technologies mainly include Langmu...

Claims

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Application Information

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IPC IPC(8): B01J31/06
Inventor 钱东金刘安张朝峰刘冰
Owner FUDAN UNIV
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