Guest materials of phosphorescent material, phosphorescent material and method for adjusting luminescent property of phosphorescent material

A technology of phosphorescent materials and guest materials, applied in the fields of luminescent materials, chemical instruments and methods, organic chemistry, etc., to achieve the effect of suppressing non-radiative transitions, improving yield and phosphorescent lifetime

Active Publication Date: 2021-12-21
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phosphorescent properties and functions of most doped materials still need to be further improved

Method used

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  • Guest materials of phosphorescent material, phosphorescent material and method for adjusting luminescent property of phosphorescent material
  • Guest materials of phosphorescent material, phosphorescent material and method for adjusting luminescent property of phosphorescent material
  • Guest materials of phosphorescent material, phosphorescent material and method for adjusting luminescent property of phosphorescent material

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preparation example Construction

[0053] The present invention also provides a method for preparing a guest material of any one of the above-mentioned phosphorescent materials, comprising the following steps:

[0054] (a) When R 1 For H, compound A 1 reacting with 2-bromoacetophenone in an alcohol solvent under the catalysis of an inorganic base; then the reaction solution is refluxed under the action of ammonium acetate and acetic acid, and post-treated to obtain the guest material;

[0055] (b) when R 1 When it is phenyl, compound A 2 React with 2-bromoacetophenone in an alcohol solvent under the catalysis of an inorganic base; then the reaction solution is refluxed under the action of ammonium acetate and acetic acid to obtain an intermediate B; the intermediate B is carried out with phenylboronic acid Suzuki reaction, post-processing to obtain the guest material;

[0056] Among them, the compound A 1 The structural formula is: The compound A 2 The structural formula is: The structural formula of ...

Embodiment 1

[0108] This embodiment provides a method for preparing the guest material PFP of the phosphorescent material, and the route is as follows:

[0109]

[0110] Specifically, the preparation method includes:

[0111] (S1) Dissolve a mixture of acetophenone (1.2015g) and salicylaldehyde (1.2212g) in 15mL of methanol to obtain a methanol solution of acetophenone and salicylaldehyde, cool to 0°C, and dropwise add 4mL of aqueous sodium hydroxide solution with a mass fraction of 40%; after the dropwise addition, the reaction system was brought to room temperature and stirred overnight; the organic solvent in the reaction solution was evaporated to remove, and then 20mL of 1M hydrochloric acid was added thereto for neutralization; Then use ethyl acetate to extract three times, collect the organic phase, and dry the organic phase with anhydrous sodium sulfate, then evaporate the organic solvent in the organic phase under reduced pressure, and separate by silica gel column chromatograp...

Embodiment 2

[0115] This embodiment provides a method for preparing the guest material PFP of the phosphorescent material, and the route is as follows:

[0116]

[0117] Specifically, the preparation method includes:

[0118] (S1) A mixture of acetophenone (1.2015g) and 5-bromosalicylaldehyde (2.0101g) was dissolved in 15mL of methanol to obtain a methanol solution of acetophenone and 5-bromosalicylaldehyde, cooled to 0°C, Add dropwise 4mL of 40% sodium hydroxide aqueous solution to the methanol solution; after the dropwise addition, allow the reaction system to reach room temperature and stir overnight; evaporate the organic solvent in the reaction solution, and then add 20mL of 1M hydrochloric acid to it , carry out neutralization reaction; Then adopt ethyl acetate to extract three times, collect organic phase, and use anhydrous sodium sulfate to dry described organic phase, then evaporate the organic solvent in the organic phase under reduced pressure, obtain yellow solid by silica g...

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Abstract

The invention relates to the technical field of organic photoelectric materials, in particular to guest materials of a phosphorescent material, the phosphorescent material and a method for adjusting the luminescent property of the phosphorescent material. The structural formula of the guest materials of the phosphorescent material is as shown in the specification. In the structural formula, R1 is selected from H and a phenyl group. The phosphorescent material comprises at least one of the guest materials and a host material, wherein the host material comprises diphenyl sulfoxide and/or diphenyl sulfone. The phosphorescent material also comprises water and/or a protonic acid. The novel guest materials of the phosphorescent material provided by the invention can be doped with the diphenyl sulfoxide or diphenyl sulfoxide host material to obtain the phosphorescent material; and meanwhile, a third component is introduced on the basis, a hydrogen bond can be formed with host molecules, a matrix network can be effectively cured, non-radiative transition of guest excitons can be further inhibited, phosphorescence quantum yield is remarkably increased, and phosphorescence service life is remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an object material of a phosphorescent material, a phosphorescent material and a method for adjusting the luminous performance of the phosphorescent material. Background technique [0002] Compared with fluorescence, phosphorescence has a larger Stokes shift, which can avoid the interference of excitation light; at the same time, phosphorescence has a longer lifetime, so phosphorescent materials are widely used in anti-counterfeiting, data encryption, biological imaging and chemical sensing and other fields. [0003] The host-guest doping strategy in phosphorescent materials can combine non / weakly luminescent organic compounds into materials with room temperature phosphorescent properties, which has attracted extensive attention. However, the phosphorescent properties and functions of most doped materials still need to be further improved. [0004] In vie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D491/048C09K11/06
CPCC07D491/048C09K11/06C09K2211/1007C09K2211/1033
Inventor 吴华悦刘南南沈国敏雷云祥黄小波刘妙昌
Owner WENZHOU UNIVERSITY
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