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Electrochemical luminescence compound, electrochemical luminescence system and application thereof

A luminescent compound and electrochemical technology, which is applied in the direction of chemiluminescence/bioluminescence, indium organic compounds, and electrochemical variables of materials, can solve the problem of single luminescent color, and achieve high application safety, strong stability, and good monochromatic sexual effect

Active Publication Date: 2021-08-03
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the terpyridine ruthenium complex Ru(bpy) 3 2+ It is the most common type of electrochemiluminescent signal labeling molecule, but the color of light is single (orange red, the maximum emission wavelength is around 610nm)

Method used

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  • Electrochemical luminescence compound, electrochemical luminescence system and application thereof
  • Electrochemical luminescence compound, electrochemical luminescence system and application thereof
  • Electrochemical luminescence compound, electrochemical luminescence system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The structures of the electrochemiluminescent compounds used are shown below:

[0035]

[0036] Synthesis of Electrochemiluminescent Compounds:

[0037] First, imidazole is reacted with 4-bromodibenzothiophene to obtain a ligand precursor, and then the ligand precursor is reacted with methyl iodide to obtain a C^C bidentate ligand, and then the C^C* bidentate ligand is further obtained The intermediate reacts with the chlorobis(cyclooctene) iridium (I) dimer to obtain an intermediate, and finally reacts the intermediate with N^N, N^O or O^O bidentate ligands to obtain the final electrochemiluminescence compound.

[0038] The glassy carbon electrodes in the electrochemiluminescent system involved in the present invention all use Al 2 o 3 Grinding with polishing powder, cleaning with ultrapure water, using N 2 Blow dry the surface.

[0039] (1) In the acetonitrile solution system, the concentration of the electrochemiluminescent compound is 0.1mmol / L, tetrabutylam...

Embodiment 2

[0043] The structures of the electrochemiluminescent compounds used are shown below:

[0044]

[0045] (1) In the acetonitrile solution system, the concentration of the electrochemiluminescent compound is 0.1mmol / L, tetrabutylammonium hexafluorophosphate is used as the supporting electrolyte, the concentration is 0.1mol / L, and tripropylamine is used as the co-reaction molecule, the concentration is 40mmol / L, using cyclic potential scanning method (the potential range is 0V~+1.10V, the scanning speed is 50mV / S, and the potential is expressed as Fc + / Fc as a reference), and the electrochemiluminescence signal was collected using a photomultiplier tube (550 times). The wavelength of the electrochemiluminescence peak is 560 nm.

[0046] (2) In the acetonitrile solution system, the concentration of the electrochemiluminescent compound is 0.1mmol / L, tetrabutyl ammonium hexafluorophosphate is used as the supporting electrolyte, the concentration is 0.1mol / L, and tripropylamine i...

Embodiment 3

[0048] The structures of the electrochemiluminescent compounds used are shown below:

[0049]

[0050] (1) In the acetonitrile solution system, the concentration of the electrochemiluminescent compound is 0.1mmol / L, tetrabutylammonium hexafluorophosphate is used as the supporting electrolyte, the concentration is 0.1mol / L, and tripropylamine is used as the co-reaction molecule, the concentration is 40mmol / L, using cyclic potential scanning method (the potential range is 0V~+1.03V, the scanning speed is 50mV / S, and the potential is expressed as Fc + / Fc as a reference), and the electrochemiluminescence signal was collected using a photomultiplier tube (550 times). The wavelength of the electrochemiluminescent peak is 538nm.

[0051] (2) In the acetonitrile solution system, the concentration of the electrochemiluminescent compound is 0.1mmol / L, tetrabutyl ammonium hexafluorophosphate is used as the supporting electrolyte, the concentration is 0.1mol / L, and tripropylamine is ...

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Abstract

An electrochemical luminescence compound disclosed by the invention at least has electrochemical luminescence capability in yellow-green wave bands, is a bidentate ligand, and has a structural formula shown in the specification, wherein M is iridium; a C^C * bidentate ligand is a first ligand, and C * is carbene carbon; an N^N, N^O or O^O bidentate ligand is a second ligand; and X is one of hexafluorophosphate radical, chloride ion and tetrafluoroborate radical. The electrochemical luminescence compound disclosed by the invention is high in chemical structure stability, can be prepared into an electrochemical luminescence system, has high electrochemical luminescence efficiency in various luminescence modes, and effectively realizes electrochemical luminescence in yellow-green wave bands.

Description

technical field [0001] The invention belongs to the technical field of electrochemiluminescent systems, and specifically relates to an electrochemiluminescent compound, an electrochemiluminescent system and applications thereof, in particular to an electrochemiluminescent compound that realizes yellow-green band luminescence and its red-shifted or blue-shifted luminescence, Electrochemiluminescent systems and their applications. Background technique [0002] Electrochemiluminescence is a technique that produces chemiluminescence near the surface of an electrode under a certain potential excitation. It does not require an external light source, has low background signal, high sensitivity, and has the advantages of strong controllability and fast analysis speed of electrochemical analysis methods, and has excellent development prospects. At present, the terpyridine ruthenium complex Ru(bpy) 3 2+ It is the most common type of electrochemiluminescent signal labeling molecules...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06C09K11/07G01N21/66G01N21/76G01N27/48
CPCC07F15/0033C09K11/06C09K11/07G01N27/48G01N21/66G01N21/76C09K2211/185
Inventor 杨婧瑶周宇扬丁杨铭董建华赵宜波徐姚姚秦雨琦
Owner SUZHOU UNIV OF SCI & TECH
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