Preparation method and properties of series of organometallic host-guest composite materials

A technology of metal-organic and composite materials, applied in the field of material chemistry, can solve the problems of instability, damage, and harsh conditions of materials with high specific surface area, and achieve the effects of easy operation, mild processing conditions, and simple characterization methods

Inactive Publication Date: 2014-11-26
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In 2007, Jaheon Kim's research group prepared terbium organometallic compounds with pore diameters of 3.9nm and 4.7nm. While maintaining the integrity of the structure, they successfully encapsulated ferrocene, which is easy to sublime, into the material at 100°C, overcoming the large pores. Disadvantages of high specific surface area materials being unstable in air
[0003] Studies have shown that the above methods of processing large-porous materials either use organic solvents that are extremely harmful to the body, or need to be heated to a very high temperature, and the conditions are relatively harsh

Method used

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  • Preparation method and properties of series of organometallic host-guest composite materials
  • Preparation method and properties of series of organometallic host-guest composite materials

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Embodiment Construction

[0017] Below in conjunction with embodiment the present invention is described in further detail.

[0018] Using the large-porous material of the metal that has been reported in the literature as a raw material, divide it into several parts with an amount of 9mg-15mg, pretreat it with 5-10ml methanol for 3-5 days, dry under reduced pressure to remove methanol molecules, and then A certain amount of guest molecules tetrathiafulvalene (TTF), 7,7,8,8-tetracyanoquinoline methane (TCNQ), 1,1'-dimethyl-4,4'-dichloride Bipyridinium (MV 2+ ), N, N, N, N-tetramethyl-p-phenylenediamine (TMPD) and azobenzene (ABZ) and the processed raw material were put into 5~10ml dichloromethane for 10-20 days, to the obtained material Perform reduced pressure drying treatment for 1-2 days to remove residual guest molecules on the surface of the material, and observe in the electron microscope that it is immersed in TTF, TCNQ, MV 2+ , TMPD, and the colorless materials of ABZ become red, green, gray, ...

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Abstract

The invention discloses a preparation method and properties of series of organometallic host-guest composite materials, and belongs to the technical field of material chemistry. A reported material is taken as the raw material, and then the material is subjected to a methanol pretreatment. After the pretreatment, the material is made to carry out reactions with guest materials namely tetrathiafulvalene (TTF), 7,7,8,8-tetracyanoquinodimethane (TCNQ), 1,1'-dimethyl-4,4'-dichlorodipyridyl onium (MV2+), N,N,N,N-tetramethyl-p-phenylenediamine (TMPD) and azobenzene. The colorless processed material turns into a red color, a green color, a grey color, a purple color, and an orange-yellow color when being dipped into TTF, TCNQ, MV2+, TMPD, and ABZ respectively. Through carrying out element and thermo-gravimetric analysis, it is found that 2 TTF, 6 TCNQ, 3.5 MV2+, 1 TMPD, and 2.5 ABZ enter the hollow material. The preparation is simple and easy to operate, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of material chemistry, and in particular relates to the preparation and thermogravimetric characterization of a series of host-guest composite materials. Background technique [0002] In recent years, host-guest composites have become a research hotspot for organometallic chemists and material scientists. Macroporous materials have attracted much attention due to their potential applications in adsorption, separation, catalysis, and drug delivery. It is the dream of scientists to combine guest molecules with special functions and macroporous materials to obtain multifunctional materials. In 2004, Fujita's research group used cyclohexane to treat metal-organic materials with large pores, and then successfully encapsulated nitrobenzene, naphthalene, and anthracene into the material, and obtained the structure. In 2007, Jaheon Kim's research group prepared terbium organometallic compounds with pore diameters ...

Claims

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Application Information

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IPC IPC(8): C09K9/02
Inventor 秦兰韩磊余磊闫晓志
Owner NINGBO UNIV
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