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Manganese (II) complex based on tricyclohexylphosphine structure as well as synthesis method and application thereof

A technology of tricyclohexylphosphine and a synthesis method, which is applied in the application field of scintillators in radiation imaging and detection, can solve the problems of innovative structures and immature explanations of luminescent material systems, and achieves good responsiveness and broad application prospects. , the effect of low cost

Pending Publication Date: 2022-08-02
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the current research on manganese complexes needs to be further expanded: some innovative structures and luminescent material systems have yet to be enriched, and the luminescence phenomena such as multiple emission have not yet been fully explained, and the application in the field of scintillators has yet to be explored.

Method used

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  • Manganese (II) complex based on tricyclohexylphosphine structure as well as synthesis method and application thereof
  • Manganese (II) complex based on tricyclohexylphosphine structure as well as synthesis method and application thereof
  • Manganese (II) complex based on tricyclohexylphosphine structure as well as synthesis method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: Synthesis of Structure 1 Manganese(II) Complex

[0050] The synthetic route is as follows:

[0051]

[0052] Synthesis steps: Weigh 1 g of tricyclohexylphosphine and 0.43 g of 3-bromo-1-propene, mix them and place them in a reaction flask, add 40 ml of acetonitrile solvent to fully dissolve them. The reaction system was heated to 80°C with stirring in an oil bath, and condensed to reflux. After 48 hours of reaction, 1.43 g of protonated organic cationic ligand bromide was obtained. After further purification, the protonated organic cationic ligand bromide was mixed with MnBr 2 ·4H 2O was mixed according to the substance ratio of 2:1, and 40 ml of methanol solvent was added to dissolve it. After several times of rotary evaporation to remove excess water in the reaction system, 3.06 g of the product manganese (II) complex of structure 1 was obtained.

Embodiment 2

[0053] Example 2: Synthesis of Manganese(II) Complexes of Structures 2 and 3

[0054] The synthetic route is as follows:

[0055]

[0056] Synthesis steps: Weigh 1 g of tricyclohexylphosphine and 0.61 g of benzyl bromide, mix them and place them in a reaction flask, add 40 ml of acetonitrile solvent to fully dissolve, and heat the reaction system to 80°C with stirring in an oil bath, and condense and reflux. After 48 hours of reaction, 1.61 g of protonated organic cationic ligand bromide was obtained. After further purification, MnBr with substance ratios of 2:1 and 1:1 was obtained, respectively. 2 ·4H 2 O mixes, and adds 40ml of methanol solvent to dissolve, after the redundant water in the reaction system is removed by rotary evaporation for many times, the product manganese (II) complexes of different metal manganese central structures can be obtained, which are respectively the manganese (II) complexes of structure 2 and structure 3 ( II) Complexes. When protonated ...

Embodiment 3

[0062] Example 3: Test of Photophysical Properties of Manganese(II) Complexes of Structures 1, 2 and 3

[0063] After placing the product crystals of structures 1, 2, and 3 in quartz tubes with different numbers, the normalized excitation-emission of the manganese(II) complex crystals of structures 1-3 was measured using a Hitachi F-4600 spectrofluorophotometer. spectrum, such as Figure 4 shown. The emission curve peaks of the manganese(II) complexes of structures 1 and 2 are at 524 nm and 516 nm, respectively, which are green emission. The peak of the emission curve of structure 3 is at 565 nm, which is yellow-green emission.

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Abstract

The invention provides a manganese (II) complex based on a tricyclohexylphosphine structure as well as a synthesis method and application thereof. Firstly, organic cations are obtained through ionization, and then the organic cations are combined with manganese bromide to form the ionic manganese (II) complex. The types of organic cations or the central configuration of metal manganese of the manganese (II) complex can be changed during synthesis, so that the photophysical properties of the manganese (II) complex can be regulated and controlled. As a cheap metal luminescent material with a wide prospect, the metal organic manganese halide material has a series of advantages of low cost, low toxicity, abundant reserves, excellent luminescent property and the like, and is applied to a plurality of fields such as information storage and encryption, organic electroluminescence, sensors, scintillators and the like.

Description

technical field [0001] The invention belongs to the technical field of photoluminescent materials, and mainly relates to a manganese (II) complex based on a tricyclohexylphosphine structure, a synthesis method thereof, and a method for using the manganese (II) complex as a scintillator in radiation imaging and detection. application. Background technique [0002] Radiation imaging and radiation detection devices are widely used in medical imaging, security inspection, scientific research, space exploration and other fields. According to the different detection mechanisms, they are divided into direct detection and indirect detection. As an important part of indirect detection, scintillators can convert high-energy rays into low-energy visible light. Finally, the photodiode converts the optical signal into an electrical signal, thereby realizing the detection of high-energy rays by the detector. At present, the common commercial scintillators are mainly inorganic scintillat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F13/00C09K11/06C09K9/02H01L51/54H01L51/50C09D11/50C09D11/38C09D11/30
CPCC07F13/005C09K11/06C09K9/02G01T1/003C09D11/50C09D11/38C09D11/30C09K2211/188C07B2200/13H10K85/341H10K50/12Y02E10/549
Inventor 刘淑娟王晓明赵强王梦竹张滨陶李飞阳
Owner NANJING UNIV OF POSTS & TELECOMM
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