Ruthenium polymer, preparation method thereof and pH value detection fluorescent probe

A polymer, pH value technology, used in fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc., can solve the problems of insignificant linear relationship, small pH response range, and cannot be recycled, and achieve excellent optical properties. Luminescence characteristics, the effect of long excited state lifetime

Active Publication Date: 2021-10-01
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the pH fluorescent sensors reported so far, especially the pH-MOF sensors, have disadvantages such as poor stability, small pH response range, unclear linear relationship, and inability to be recycled. In practical applications, sometimes multiple detection methods need to be coordinated to achieve Effective monitoring of target sample pH

Method used

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  • Ruthenium polymer, preparation method thereof and pH value detection fluorescent probe
  • Ruthenium polymer, preparation method thereof and pH value detection fluorescent probe
  • Ruthenium polymer, preparation method thereof and pH value detection fluorescent probe

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Effect test

Embodiment 1

[0047] The synthesis of embodiment 1 organic ligand bipb

[0048] Add 1,10-phenanthroline-5,6-dione (1.89g, 9mmol), ammonium acetate (13.86g, 180mmol), p-benzaldehyde (0.603g, 4.5mmol) into 150mL glacial acetic acid, The flask was refluxed for 3 hours. After the reaction was completed, it was cooled to room temperature to obtain an orange precipitate, which was collected by filtration and washed with water and ethanol three times. Put it into a vacuum oven and dry at 40° C. for 12 hours to obtain an orange-yellow solid with a yield of 1.327 g and a yield of 57.4%.

Embodiment 2

[0049] The organic complex Ru(phen)Cl of embodiment 2 ruthenium 4 preparation of

[0050] Ruthenium trichloride hydrate (1g, 3.8mmol), 1,10-phenanthroline (0.9g, 4.5mmol) were added in the hydrochloric acid of 100mL1N, under the condition of nitrogen protection, stir 30min in dark place, reaction temperature is room temperature, Overnight, the precipitate was collected, fully washed with water three times, and dried under vacuum at 40° C. for 12 hours to obtain a black powder solid with a yield of 1.692 g and a yield of 80%.

Embodiment 3

[0051] The organic complex Ru(bpy)Cl of embodiment 3 ruthenium 4 preparation of

[0052] Ruthenium trichloride hydrate (1g, 3.8mmol), bipyridine (0.22g, 3.8mmol) was added to 5mL of 1N hydrochloric acid, mixed and stirred for 30 minutes, placed in a stoppered flask for 3 weeks, filtered, water and ether After washing and drying, a brown powder solid was obtained, yield 1.4 g, yield: 92.1%.

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Abstract

The invention relates to the technical field of complexes, in particular to a ruthenium polymer, a preparation method thereof and a pH value detection fluorescent probe. The invention discloses a ruthenium polymer with a chemical formula as shown in a formula (I). The ruthenium polymer is novel in structure, good in luminescence characteristic, excellent in optical property, long in excited state service life, sensitive to pH response, wide in response range and wide in linear range, and is particularly obvious when the pH is 4-8. The ruthenium polymer can be used for sensitively detecting the change of the pH level in a living body by utilizing a fluorescence technology, can be used as a novel fluorescent polymer probe, and is applied to the field of fluorescent biological imaging in life science research.

Description

technical field [0001] The invention relates to the technical field of complexes, in particular to a ruthenium polymer, a preparation method thereof and a fluorescent probe for pH value detection. Background technique [0002] The pH value plays a vital role in fields such as production process, environmental monitoring and medical etiology screening. For example, many diseases such as type 2 diabetes, Alzheimer's disease, cancer, etc. can cause small fluctuations in pH in the body. Therefore, it is necessary to develop sensors that can quickly and accurately detect pH and monitor its changes. Compared with traditional pH detection methods such as pH test paper method, NMR method and electrochemical method, fluorescence detection method has the advantages of simple operation, rapid response, high sensitivity, and continuous dynamic monitoring. It is one of the ideal materials for this type of sensor. . However, the pH fluorescent sensors reported so far, especially the pH...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C09K11/06G01N21/64G01N21/80
CPCC08G83/008C09K11/06G01N21/6428G01N21/80C09K2211/185C09K2211/1466G01N2021/6443G01N2021/6432
Inventor 谢梦婷李君于会娟
Owner GUANGDONG UNIV OF TECH
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