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A Novel Bidentate Neutral Manganese Complex of Phosphine Oxygen and Its Preparation and Application

The technology of manganese complex and phosphine oxide is applied in the field of novel phosphine oxide bidentate neutral manganese complex and its preparation, which can solve problems such as single color and achieve the effects of low cost and simple synthesis.

Active Publication Date: 2022-04-05
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since there are few studies on the existing bidentate phosphine manganese complexes, and the color of the research is single, it is necessary to design a ligand that can achieve color diversification by adjusting the ratio.

Method used

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  • A Novel Bidentate Neutral Manganese Complex of Phosphine Oxygen and Its Preparation and Application
  • A Novel Bidentate Neutral Manganese Complex of Phosphine Oxygen and Its Preparation and Application
  • A Novel Bidentate Neutral Manganese Complex of Phosphine Oxygen and Its Preparation and Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: the synthesis of phosphine oxygen bidentate manganese complex Cp1

[0033] The specific synthesis method is as follows:

[0034]

[0035] 1. Synthesis of 4,5-bis(diphenylphosphine)-9,9-dimethylxanthene (ligand L1)

[0036] Step a: Put the raw materials into the reaction bottle, vacuumize and blow nitrogen;

[0037] Step b: Inject ultra-dry tetrahydrofuran and stir to fully dissolve;

[0038] Step c: put the mixture of dry ice and acetone into a low-temperature tank to cool down to -78°C, add butyllithium, and lithiate.

[0039] Step d: According to the equivalent ratio of raw materials: diphenylphosphine chloride = 1:2.5, inject corresponding diphenylphosphine chloride for phosphating reaction, after adding diphenylphosphine chloride for reaction, remove the low-temperature tank and slowly recover After stirring the reaction at room temperature, the solvent was distilled off under reduced pressure, extracted with dichloromethane and water to obtain a...

Embodiment 2

[0047] Embodiment 2: the synthesis of phosphine oxygen bidentate manganese complex Cp2

[0048] The synthesis process of the complex Cp2 is the same as the basic steps of Cp1, that is, step 1 is the same as step 2, the difference is that Cp2 is obtained by adjusting the coordination number.

Embodiment 3

[0049] Embodiment 3: the synthesis of phosphine oxygen bidentate manganese complex Cp3:

[0050]

[0051] Synthesis of complex Cp3: Ligand L2 (4,5-bis(dicyclohexylphosphine)-dibenzopyran derivative) can be purchased directly, followed by direct coordination with manganese bromide, coordination synthesis method and implementation The synthesis of step 3 in Example 1 is the same, and the green light manganese complex can be obtained.

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Abstract

The present invention proposes a novel phosphine oxide bidentate neutral manganese complex and its preparation method and application. The luminescent manganese complex is formed through the action of the bidentate phosphine oxygen bond and metal manganese. The ligand can transform the two benzene rings on P Replaced with cyclohexyl to form another new structure, these structures can be optically regulated to metal manganese complexes by adjusting the ligand field and ligand ratio; due to the advantages of low price, low cost and simple synthesis of metal manganese, this neutral Manganese complexes are widely used and can be used in anti-counterfeiting printing, lighting display and other fields.

Description

technical field [0001] The invention belongs to the technical field of photoluminescent materials, and in particular relates to a novel phosphine oxide bidentate neutral manganese complex and a preparation method thereof, which can be applied to the fields of printing, information anti-counterfeiting, photoelectric display, biological sensing and imaging. Background technique [0002] Due to their own characteristics, luminescent materials are widely used in lighting, optoelectronic display, biological imaging and other fields. In recent decades, phosphorescent metal complexes have attracted extensive attention due to their low cost and excellent optical properties. In most cases, the noble metals contained in phosphorescent metal complexes include Ir(III), Pt(II), Re(I), Ag(I), Au(I), Mn(II), etc., and the phosphorescent emission of these noble metal complexes It is mainly due to the charge transfer between metal ions and ligands. Among them, the high-efficiency luminesce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F13/00C09K11/06C09D11/03C09D11/38H01L51/54
CPCC07F13/005C09K11/06C09D11/03C09D11/38C09K2211/188H10K85/341
Inventor 刘淑娟孟海星赵强黄维黄晓萌
Owner NANJING UNIV OF POSTS & TELECOMM
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