Terbium diphenylamine carbonyl benzoic acid rare earth complex as well as preparation method and application thereof

A carbonyl benzoic acid and rare earth complex technology, applied in the field of rare earth metal complexes, can solve problems such as damage to liver cytoskeleton, DNA damage, liver cell death, etc., and achieve easy control of chemical components, good repeatability, and simple synthesis process. Effect

Active Publication Date: 2021-08-03
HENGYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Studies have shown that the strong oxidation of Cr(Ⅵ) can damage DNA and interfere with DNA repair. At the same time, it can also damage the skeleton of liver cells, and even lead to the death of liver cells. Long-term exposure will increase the risk of cancer

Method used

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  • Terbium diphenylamine carbonyl benzoic acid rare earth complex as well as preparation method and application thereof
  • Terbium diphenylamine carbonyl benzoic acid rare earth complex as well as preparation method and application thereof
  • Terbium diphenylamine carbonyl benzoic acid rare earth complex as well as preparation method and application thereof

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preparation example Construction

[0036] The present invention also provides a preparation method of terbium diphenylamine carbonyl benzoic acid rare earth complex, comprising the following steps:

[0037] Add 2-diphenylaminecarbonylbenzoic acid, 2,2'-bipyridine, terbium nitrate hexahydrate and mixed solvent in sequence in the reaction vessel, wherein 2-diphenylaminecarbonylbenzoic acid, 2,2'-bipyridine and hexa The molar ratio of terbium nitrate in water is 1:2:1-1:3:2, and the mixed solvent is configured by absolute ethanol and water in a volume ratio of 2:1-1:2, and the mixed solvent is The dosage is 50-65 milliliters of mixed solvent per millimole of terbium nitrate hexahydrate;

[0038] Heating in a water bath, controlling the temperature at 50-75°C, and reacting for 4-8 hours under stirring;

[0039] Cool, filter, retain the filtrate, control the solvent volatilization and crystallization under the condition of 15-40°C to obtain a colorless crystal product, which is the rare earth complex of terbium dip...

Embodiment 1

[0041] Add 2-diphenylaminecarbonylbenzoic acid, 2,2'-bipyridine, terbium nitrate hexahydrate and mixed solvent in sequence in the reaction vessel, wherein 2-diphenylaminecarbonylbenzoic acid, 2,2'-bipyridine and hexa The molar ratio of terbium nitrate in water is 1:2:1, and the mixed solvent is composed of dehydrated alcohol and water in a volume ratio of 2:1, and the consumption of the mixed solvent is to add 50 milliliters per millimole of terbium nitrate hexahydrate. Mixed solvent;

[0042] Heating in a water bath, controlling the temperature to 50°C, and reacting for 4 hours under stirring;

[0043] Cooling, filtering, retaining the filtrate, controlling solvent volatilization and crystallization at 15 ° C, to obtain a colorless crystal product, which is the rare earth complex of terbium diphenylamine carbonyl benzoate, and the yield of the rare earth complex of terbium diphenylamine carbonyl benzoate is 30 %.

Embodiment 2

[0045] Add 2-diphenylaminecarbonylbenzoic acid, 2,2'-bipyridine, terbium nitrate hexahydrate and mixed solvent in sequence in the reaction vessel, wherein 2-diphenylaminecarbonylbenzoic acid, 2,2'-bipyridine and hexa The molar ratio of terbium nitrate in water is 1:2.5:1.5, and the mixed solvent is composed of dehydrated alcohol and water in a volume ratio of 1:1.5, and the consumption of the mixed solvent is that every mmol of terbium nitrate hexahydrate adds 60 milliliters Mixed solvent;

[0046] Heating in a water bath, controlling the temperature to 55°C, and reacting for 6 hours under stirring;

[0047] Cooling, filtering, retaining the filtrate, controlling solvent volatilization and crystallization at 30°C, to obtain a colorless crystal product, which is the rare earth complex of terbium diphenylamine carbonyl benzoate, and the yield of the rare earth complex of terbium diphenylamine carbonyl benzoate is 31.7 %.

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Abstract

The invention provides a terbium diphenylamine carbonyl benzoic acid rare earth complex, which is synthesized by taking 2-diphenylamine carbonyl benzoic acid and terbium nitrate as raw materials through water bath heating and a one-pot method. The preparation method has the advantages of simple synthesis process, low cost, easy control of chemical components, good repeatability, high yield and the like. The terbium diphenylamine carbonyl benzoic acid rare earth complex is good in fluorescence intensity and monochromaticity, and under a three-purpose ultraviolet lamp, when the excitation wavelength is 254 nm, the material emits strong green fluorescence. The terbium diphenylamine carbonyl benzoic acid rare earth complex can be used as a fluorescent probe to identify dichromate ions (Cr2O7<2->) harmful to the environment, and has high selectivity.

Description

technical field [0001] The invention relates to the technical field of rare earth metal complexes, in particular to a rare earth complex of terbium diphenylamine carbonylbenzoic acid, a preparation method and application thereof. Background technique [0002] Dichromate ion (Cr 2 o 7 2- ) is one of the metal pollutants that are seriously harmful to the environment. Chromium-containing wastewater is discharged into water bodies and is difficult to be degraded by organisms. It can be transferred to aquatic animals, plants and humans through the food chain, and is very toxic to humans. It is easily absorbed by the human body and accumulates in the body. Drinking water containing dichromate ions can cause damage to the internal tissues of the human body. Studies have shown that the strong oxidation of Cr(VI) can damage DNA and interfere with DNA repair. At the same time, it can also damage the skeleton of liver cells, and even lead to the death of liver cells. Long-term expos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00C09K11/06G01N21/64
CPCC07F5/003C09K11/06G01N21/6428C07B2200/13C09K2211/182G01N2021/6417G01N2021/6432
Inventor 杨颖群李薇
Owner HENGYANG NORMAL UNIV
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