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Organic metal iridium complex luminescent material and synthetic method of material

A technology of iridium complexes and organic metals, applied in the field of organic metal iridium complex luminescent materials and their synthesis, can solve the problems of low reaction yield, poor solubility, energy consumption, etc., achieve good solubility, increase reaction yield, The effect of increasing the transmission rate

Inactive Publication Date: 2013-06-26
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis of organometallic iridium complexes at present is due to the poor solubility of the traditional mixed reaction solvent of ethylene glycol ether and water to the reaction intermediate metal iridium dimer complexes, resulting in very low reaction yields or even no reaction.
In addition, the mixed solvent of ethylene glycol ether and water is a high-boiling solvent, and it needs to be dried in a vacuum oven for nearly 10 hours to completely remove it after the reaction, which consumes energy and takes a long time

Method used

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  • Organic metal iridium complex luminescent material and synthetic method of material
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  • Organic metal iridium complex luminescent material and synthetic method of material

Examples

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Effect test

Embodiment 1

[0025] The organometallic iridium complex luminescent material of this embodiment has a chemical formula of

[0026] C 71 h 69 B 2 IrN 2 o 2 , the structural formula is

[0027] Metal iridium complex Ir1, refer to attached figure 1 , its synthetic route comprises the following steps:

[0028] The first step: put 0.30 grams of organic ligand L1 and 0.10 grams of iridium trichloride hydrate into the reaction vessel, add 30 milliliters of tetrahydrofuran and water mixed solvent in the nitrogen atmosphere, the volume ratio of tetrahydrofuran and water in the mixed solvent is 3:1 , heated to 100°C to 110°C in a nitrogen atmosphere, stirred for 12 hours and then cooled to room temperature;

[0029] Step 2: transfer the final reaction mixture in step 1 to a separatory funnel for separation, and obtain the upper layer as an organic layer of tetrahydrofuran, dry the organic layer of tetrahydrofuran with anhydrous magnesium sulfate, and remove the solvent of tetrahydrofuran wit...

Embodiment 2

[0036] The organometallic iridium complex luminescent material of this embodiment has a chemical formula of

[0037] C 99 h 93 B 2 IrN 2 o 2 Si 2 , the structural formula is

[0038] Metal iridium complex Ir2, refer to attached figure 2 , its synthetic route comprises the following steps:

[0039] The first step: put 0.42 grams of organic ligand L2 and 0.10 grams of iridium trichloride hydrate into the reaction container, add 30 milliliters of tetrahydrofuran and water mixed solvent in the nitrogen atmosphere, the volume ratio of tetrahydrofuran and water in the mixed solvent is 3:1 , heated to 100°C to 110°C in a nitrogen atmosphere, stirred for 12 hours and then cooled to room temperature;

[0040] Step 2: Transfer the final reaction mixture in step 1 to a separatory funnel for liquid separation, and obtain the upper layer as an organic layer of tetrahydrofuran, dry the organic layer of tetrahydrofuran with anhydrous magnesium sulfate, and remove the solvent of te...

Embodiment 3

[0047] The organometallic iridium complex luminescent material of this embodiment has a chemical formula of

[0048] C 75 h 73 B 2 IrN 2 o 6 S 2 , the structural formula is

[0049]

[0050] Metal iridium complex Ir3, refer to attached image 3 , its synthetic route comprises the following steps:

[0051] The first step: put 0.45 grams of organic ligand L3 and 0.11 grams of iridium trichloride hydrate into the reaction vessel, add 30 milliliters of tetrahydrofuran and water mixed solvent in the nitrogen atmosphere, the volume ratio of tetrahydrofuran and water in the mixed solvent is 3:1 , heated to 100°C to 110°C in a nitrogen atmosphere, stirred for 12 hours and then cooled to room temperature;

[0052] Step 2: transfer the final reaction mixture in step 1 to a separatory funnel for separation, and obtain the upper layer as an organic layer of tetrahydrofuran, dry the organic layer of tetrahydrofuran with anhydrous magnesium sulfate, and remove the solvent of tetr...

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Abstract

The invention discloses an organic metal iridium complex luminescent material and a synthetic method of the material. The synthetic method disclosed by the invention comprises the following steps of: mixing an organic complex with iridium chloride hydrate in nitrogen atmosphere, subsequently adding a mixed solvent of tetrahydrofuran and water, heating in the nitrogen atmosphere and cooling to the room temperature; separating the reaction mixture liquid to acquire a tetrahydrofuran organic layer, and drying to remove the tetrahydrofuran solvent so as to acquire a metal iridium dimer complex; completely dissolving the metal iridium dimer complex and acetyl acetone thallium in dichloromethane and stirring at the room temperature in the nitrogen atmosphere; then purifying the metal iridium dimer complex on a chromatography silica gel column or a self-manufactured thin layer silica gel chromatography plate to acquire the final product which is the organic metal iridium complex luminescent material. According to the invention, the mixed solvent of the tetrahydrofuran and the water is taken as a reaction solvent for synthesizing the organic metal iridium complex, so that the synthetic yield of the organic metal iridium complex can be significantly improved; and the reaction after-treatment is simplified, so that the after-treatment time is shortened and the energy resources are saved.

Description

technical field [0001] The invention relates to the field of organic luminescent materials, in particular to an organic metal iridium complex luminescent material and a synthesis method thereof. Background technique [0002] Organic luminescent material is an organic compound that can emit light under the condition of light excitation or electric excitation. All kinds of new displays and lighting lamps made of this material have low operating voltage, high luminous brightness, energy saving and environmental protection. In particular, organometallic iridium complex luminescent materials are attracting more and more attention because they can use molecular singlet and triplet states to emit light at the same time, so that the internal quantum efficiency of luminescence can theoretically reach 100%. However, in the synthesis of organometallic iridium complexes, the reaction yield is very low or even non-reactive due to the poor solubility of the reaction intermediate product ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06
Inventor 周桂江杨晓龙徐先彬
Owner XI AN JIAOTONG UNIV
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