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Sensing material for concentration and temperature

A technology for sensing materials and concentrations, applied in luminescent materials, chemical instruments and methods, organic chemistry, etc., to achieve the effect of stable reproduction of spectral performance and not easy to quench fluorescence

Inactive Publication Date: 2013-09-25
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
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Problems solved by technology

However, there are few reports on the quantitative study of the concentration of the complexes and the temperature of the system where the complexes are located using the spectral shift effect of the emission peak of the conjugated aromatic functional group in the aggregated state.

Method used

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  • Sensing material for concentration and temperature
  • Sensing material for concentration and temperature
  • Sensing material for concentration and temperature

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Experimental program
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Embodiment Construction

[0038] Preparation of temperature and concentration sensing materials:

[0039] Step 1: Rare earth precursor: Europium hexafluoroacetylacetonate Eu(hfac) hydrate 3 (H 2 O) 2Preparation: Add 3.3 times the molar equivalent of rare earth acetate hexafluoroacetylacetone (Hhfac) dropwise to the rare earth acetate aqueous solution with pH=6±0.5, stir at room temperature until a large amount of white precipitate precipitates, and wash the precipitate with a large amount of water After drying in vacuum, Eu(hfac) 3 (H 2 O) 2 ;

[0040] Step 2: Synthesis of L2: 9,10-Diphenylphosphineanthracene oxide (PAnPO 2 ) synthesis: Add 2 times 9,10-dibromoanthracene molar equivalent of n-butyl lithium to the ether suspension containing 9,10-dibromoanthracene, stir the mixed solution for several minutes, then add 2 times 9,10 -Diphenylphosphine chloride (PPh 2 Cl), the mixed solution continued to stir for 12 hours, a large amount of precipitation appeared, filtered, collected the solid, and...

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Abstract

The invention discloses a sensing material for concentration and temperature. The sensing material is an annular rare earth complex with a molecular formula of {[Ln(L1)3](L2O2)}2, wherein, Ln is a trivalent rare earth ion except for La<3+>, Gd<3+> and Lu<3+>, L1 is a beta-dione, and L2 is an aromatic conjugate compound. The sensing material for concentration and temperature can be reused for times, and the spectrum performance of the sensing material can steadily reappear.

Description

technical field [0001] The embodiment of the present invention relates to a novel concentration and temperature sensing material. Background technique [0002] The invention provides a new concentration and temperature sensing material. [0003] In recent years, the research on chemical fluorescent sensing materials and devices, as an important content in material science research, has attracted great attention from chemical researchers. Chemiluminescent sensors have the advantages of high sensitivity and real-time detection, and have been vigorously developed in molecular recognition and sensor applications. In the previous research, some scientists have used temperature-sensitive materials to prepare chemical fluorescence sensors. However, as the temperature increases, the luminous efficiency of the luminescent components of this type of sensor will be greatly reduced, and it is difficult to achieve detection in a large temperature range. In 2011, researchers designed an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07F9/53
Inventor 徐海兵邓建国康彬黄辉
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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