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A kind of luminescent metal organic framework compound and its preparation method and application

A technology of metal-organic frameworks and compounds, which is applied in the fields of acid and alkali resistance and fluorescence properties, metal-organic framework compounds and their preparation, and solvent stability, and can solve problems such as limiting the application range of luminescent materials, reducing luminous efficiency, and limited research , to achieve good solvent stability and acid and alkali resistance, simple synthesis method, and broad application prospects

Active Publication Date: 2019-04-05
江苏罗瑞尔药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the research process of luminescent materials, one of the most challenging problems is that most luminescent materials have strong fluorescence in solution, but the luminous efficiency will be greatly reduced or even not luminescent in the aggregated state, that is, aggregation leads to quenching (aggregation caused quenching, ACQ), which greatly limits the application range of luminescent materials
However, there are not many studies on the application of molecules with AIE effect in the field of light-emitting metal-organic frameworks (MOFs) materials.

Method used

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  • A kind of luminescent metal organic framework compound and its preparation method and application
  • A kind of luminescent metal organic framework compound and its preparation method and application
  • A kind of luminescent metal organic framework compound and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Compound [In(tcbpe)][(CH 3 ) 2 NH 2 ]·H 2 Synthesis of O(MOF-In)(MOF--In)

[0038] Accurately weigh indium nitrate (0.02mmol), 1,1,2,2-tetrakis[(4-carboxyphenyl)benzene]ethylene (0.015mmol) into a 25mL high temperature resistant glass bottle, then add 2mL N,N - Dimethylformamide and 1mL acetonitrile, ultrasonically dissolved, then dropwise added 0.5mL dilute nitric acid (V 水 :V 浓硝酸 =3:2), the solution became clear. Put the glass bottle in a constant temperature drying oven, react at a constant temperature at 100°C for 48 hours, then cool down naturally to obtain yellow blocky crystals, and filter to obtain the product. Yield: 40%, Infrared (IR): 3435(m), 3045(m), 1601(s), 1525(s), 1392(s), 1012(s), 783(s).

Embodiment 2

[0040] Compound [Eu(tcbpe)][(CH 3 ) 2 NH 2 ]·H 2 Synthesis of O(MOF-Eu)(MOF--Eu)

[0041] Accurately weigh europium nitrate (0.02mmol), 1,1,2,2-tetrakis[(4-carboxyphenyl)benzene]ethylene (0.015mmol) into a 25mL high temperature resistant glass bottle, then add 2mL N,N - Dimethylformamide and 1mL acetonitrile, ultrasonically dissolved, then dropwise added 0.5mL dilute nitric acid (V 水 :V 浓硝酸 =3:2), the solution became clear. Put the glass bottle in a constant temperature drying oven, react at a constant temperature at 100°C for 48 hours, then cool down naturally to obtain yellow blocky crystals, and filter to obtain the product. Yield: 46%, Infrared (IR): 3412(m), 3064(m), 1601(s), 1525(s), 1420(s), 1002(s), 850(s), 793(s) .

Embodiment 3

[0043] Compound [Gd(tcbpe)][(CH 3 ) 2 NH 2 ]·H 2 Synthesis of O(MOF-Gd)(MOF--Gd)

[0044] Accurately weigh gadolinium nitrate (0.02mmol), 1,1,2,2-tetrakis[(4-carboxyphenyl)benzene]ethylene (0.015mmol) into a 25mL high temperature resistant glass bottle, then add 2mL N,N - Dimethylformamide and 1mL acetonitrile, ultrasonically dissolved, then dropwise added 0.5mL dilute nitric acid (V 水 :V 浓硝酸 =3:2), the solution became clear. Put the glass bottle in a constant temperature drying oven, react at a constant temperature at 100°C for 48 hours, then cool down naturally to obtain yellow blocky crystals, and filter to obtain the product. Yield: 45%. Infrared (IR): 3416(m), 3064(m), 1592(s), 1525(s), 1430(s), 1002(s), 859(s), 793(s).

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Abstract

The invention discloses a luminous metal organic frame compound and a preparing method and application thereof. The chemical formula of the compound is [M(tcbpe)][(CH3)2NH2].H2O, wherein M represents the transition metal ion M3+(M=In, Eu, Gd), tcbpe represents 1,1,2,2-tetra[(4-carboxylphenyl)benzene]ethylene, indium nitrate, europium nitrate and gadolinium nitrate are mixed with 1,1,2,2-tetra[(4-carboxylphenyl)benzene]ethylene respectively according to amount-of-substance molar ratio of 4:3, then N,N-dimethyl formamide and acetonitrile are added and stirring is conducted, finally a small amount of dilute nitric acid is added dropwise, the mixture is placed in a high-temperature-resistant glass bottle for constant-temperature reaction for 48 h at 100 DEG C, and then the luminous metal organic frame compound is obtained. The compound can emit strong blue light, has high fluorescence quantum yield and has potential application value in the field of blue light emitting materials.

Description

technical field [0001] The invention belongs to the field of luminescent metal organic framework materials, and relates to a kind of 1,1,2,2-tetrakis[(4-carboxyphenyl)benzene]ethylene as a ligand, and a transition metal ion (In 3+ 、Eu 3+ 、Gd 3+ ) metal-organic framework compound formed by self-assembly and its preparation method, as well as the solvent stability, acid and alkali resistance and fluorescence properties of the compound. Background technique [0002] In the research process of luminescent materials, one of the most challenging problems is that most luminescent materials have strong fluorescence in solution, but the luminous efficiency will be greatly reduced or even not luminescent in the aggregated state, that is, aggregation leads to quenching (aggregation caused quenching, ACQ), which greatly limits the application range of luminescent materials. In 2001, Tang Benzhong's research group discovered that 1-methyl-1,2,3,4,5-pentaphenylsilapentadiene and its de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09K11/06
CPCC08G83/008C09K11/06C09K2211/182C09K2211/188
Inventor 汪芳明胡兵相周泽宇周磊鲍丹
Owner 江苏罗瑞尔药业有限公司
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