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Dual-emission ratio type oxygen probes and application

An oxygen probe, dual emission technology, applied in luminescent materials, material excitation analysis, instruments, etc., can solve the problems of unknown proportion, uneven concentration, light color, etc., and achieve the effect of good oxygen sensitivity

Inactive Publication Date: 2017-03-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, people combine oxygen sensitizers and organic fluorescent dyes to form a film, which can realize the ratio detection of oxygen, but there are a series of defects, such as light color, and the ratio of the two dyes in the two-color system is unknown and exists. The problem of uneven concentration

Method used

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  • Dual-emission ratio type oxygen probes and application
  • Dual-emission ratio type oxygen probes and application
  • Dual-emission ratio type oxygen probes and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]

[0030] Chlorine-bridged dimer (0.1mmol), ligand (0.25mmol), dichloromethane: methanol = 3:1 as a mixed solvent, react at 80°C for 6h. At the end of the reaction, 5 times ammonium hexafluorophosphate was added and stirred overnight. Extracted 3 times with dichloromethane, dried over anhydrous magnesium sulfate, separated by column, HRMS (M + ): 1192.2627.

Embodiment 2

[0032]

[0033] Chlorine-bridged dimer (0.1mmol), ligand (0.25mmol), dichloromethane: methanol = 3:1 as a mixed solvent, react at 80°C for 6h. At the end of the reaction, 5 times ammonium hexafluorophosphate was added and stirred overnight. Extracted 3 times with dichloromethane, dried over anhydrous magnesium sulfate, separated by column, HRMS (M + ): 1162.2521.

Embodiment 3

[0035]

[0036] Chlorine-bridged dimer (0.1mmol), ligand (0.25mmol), dichloromethane: methanol = 3:1 as a mixed solvent, react at 80°C for 6h. At the end of the reaction, add 5 times of sodium chloride and stir overnight. Extracted 3 times with dichloromethane, dried over anhydrous magnesium sulfate, separated by column, HRMS (M + ): 1192.2627.

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Abstract

The invention provides dual-emission ratio type oxygen probes and an application and belongs to the technical field of the industry of fine chemicals. The probes are prepared from coumarin fluorophore as a main ligand and 2-pyridin-benzimidazole as an ancillary ligand. The iridium complexes have dual-wavelength emission characteristics and can be used for quantitatively detecting oxygen according to a ratio of fluorescence intensity of two emission wavebands.

Description

technical field [0001] The invention relates to a preparation method and application of a double-emission ratio oxygen probe, in particular to a fluorescent matrix-iridium complex which is particularly sensitive to oxygen and has a double-emission property, which belongs to the technical field of fine chemicals. Background technique [0002] Oxygen is one of the essential elements for sustaining living organisms to carry out various life activities. The use of oxygen has been widely used in various fields of society, but for most of the processes in which oxygen participates, oxygen needs to be maintained at a certain concentration, so , methods to quantitatively detect oxygen concentrations in these processes have been extensively studied. The traditional oxygen measurement methods mainly include Clark oxygen electrode method and Winkler titration method. The national standard method is Winkler titration method. Winkler titration method has the disadvantages of time-consumi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06G01N21/64
CPCC07F15/0033C09K11/06C09K2211/185G01N21/643
Inventor 肖义边辉宋新波陈令成
Owner DALIAN UNIV OF TECH