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3, 3-bipyridine complex and preparation method and application thereof

A technology for bipyridine and complexes, applied in the field of 3,3-bipyridine complexes and their preparation, can solve problems such as poor selectivity, low sensitivity, complex production process, etc., achieve high-yield production, simple raw materials, and simple preparation process Effect

Inactive Publication Date: 2019-07-05
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Based on the problems existing in the prior art, the purpose of the present invention is to provide a 3,3-bipyridine complex and its preparation method and application, which can solve the existing problems of fluorescent probe materials for identifying small molecules such as nitrobenzene. The sensitivity is low, the selectivity is poor, and the production process is relatively complicated.

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  • 3, 3-bipyridine complex and preparation method and application thereof

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preparation example Construction

[0022] The embodiment of the present invention also provides a preparation method of a 3,3-bipyridine complex, which is used for the above-mentioned 3,3-bipyridine complex, including:

[0023] After mixing p-2,5-furandicarboxylic acid, 3,3-bipyridine and zinc nitrate, they were added to N,N-dimethylacetamide:ethanol (volume ratio 1:1) solution and stirred for 10 minutes. Then place it in an oven at 95° C. for 72 hours, and obtain the above-mentioned 3,3-bipyridine complex after cooling.

[0024] In the above-mentioned method, the consumption of each raw material is:

[0025]

[0026] The embodiment of the present invention further provides an application of the above-mentioned 3,3-bipyridine complex as a fluorescent probe for recognizing nitrobenzene.

[0027] The 3,3-bipyridine complex of the invention has high sensitivity and selectivity to nitrobenzene, and can be used as a fluorescent probe for recognizing nitrobenzene with high sensitivity and high selectivity. The r...

Embodiment 1

[0030] This embodiment provides a 3,3-bipyridine complex, the preparation method of which comprises:

[0031] After mixing 0.016g of 2,5-furandicarboxylic acid, 0.016g of 3,3-bipyridine and 0.030g of zinc nitrate, add it to 5mL of N,N-dimethylacetamide and ethanol in a volume ratio of 1:1 The solution was stirred for 10 minutes, and then placed in an oven at 95°C for 72 hours. After cooling, the obtained colorless blocky crystals were 3,3-bipyridyl complexes.

[0032] Specifically, the selected size is 0.25×0.24×0.23mm 3 The single crystal structure analysis of the 3,3-bipyridine complex prepared in Example 1 of the present invention was carried out. The single crystal diffraction data was collected by a Bruker-AXS SMART APEX2 CCD diffractometer, and the Mokα monochromated by a graphite monochromator Rays 2.5°≤θ≤25.3°, thus the following results are obtained: the 3,3-bipyridine complex prepared in Example 1 of the present invention belongs to the monoclinic crystal system, ...

Embodiment 2

[0034] This embodiment provides a 3,3-bipyridine complex, the preparation method of which comprises:

[0035] After mixing 0.16g of 2,5-furandicarboxylic acid, 0.16g of 3,3-bipyridine and 0.30g of zinc nitrate, add it to 50mL of N,N-dimethylacetamide and ethanol in a volume ratio of 1:1 The solution was stirred for 10 minutes, and then placed in an oven at 95°C for 72 hours. After cooling, the obtained colorless blocky crystals were 3,3-bipyridyl complexes.

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Abstract

The invention discloses a 3, 3-bipyridine complex and a preparation method and application thereof. The chemical formula of the 3,3-bipyridine complex is C22H16N2O10Zn2, the molecular weight is 599.19, and the chemical structural formula of the 3,3-bipyridine complex is Zn2(C6H2O5) 2(C10H8N2), wherein C6H2O5 is 2, 5-furandicarboxylic acid, and C10H8N2 is 3, 3-bipyridine. The preparation method comprises the steps of mixing the 2, 5-furandicarboxylic acid, the 3, 3-bipyridine and zinc nitrate; adding the mixture solution into a solution mixed by N, N-dimethylacetamide and ethanol in a volume ratio of 1: 1; stirring for 10 minutes; standing in an oven at 95 DEG C for 72 hours; and cooling to obtain the complex. The 3, 3-bipyridine complex is used as a fluorescent probe for identifying nitrobenzene with high sensitivity and high selectivity. The preparation method has the advantages of simple raw material and preparation process, easy control of chemical components and good repeatability,and can achieve high-yield production.

Description

technical field [0001] The invention relates to the field of preparation of fluorescent probe materials, in particular to a 3,3-bipyridine complex and its preparation method and application. Background technique [0002] In the field of chemical detection, fluorescent probes are often used for detection at present. Fluorescent probes use fluorescent substances as indicators, which can make the indicator produce fluorescence under the excitation of light of a certain wavelength. Fluorescence enables qualitative or quantitative analysis of the detected substance. Compared with traditional detection and analysis methods, fluorescent probe detection has the advantages of good selectivity, good sensitivity, simple equipment, and easy operation. It is currently widely used in environmental detection, biochemistry and other fields. [0003] However, in the prior art, the fluorescent probe materials used to identify small molecules such as nitrobenzene mostly use carboxylic acids a...

Claims

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Application Information

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IPC IPC(8): C07F3/06C09K11/06G01N21/64
CPCC07B2200/13C07F3/003C09K11/06C09K2211/188G01N21/643G01N2021/6432
Inventor 王浩郝学敏郭文莉李树新伍一波商育伟杨丹
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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