Rigid functional ligand-cyclic metal bridge-functional ligand-type iridium complex framework

An iridium complex and cyclometal technology, which is applied in the field of high-performance luminescent materials in the technical field of organometallic complexes, can solve the problems of unfavorable organometallic iridium complex performance improvement, limited space for performance regulation, etc., to increase structural diversity And the effect of property control space, optimal performance, and important application value

Active Publication Date: 2021-02-02
XI AN JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

However, the organometallic iridium complexes that have been successfully applied and the organometallic iridium complexes that are still being studied in the laboratory will focus on organic ligands. Only three ligands limit the space for performance regulation of iridium complexes. Not conducive to the further improvement of the properties of organometallic iridium complexes

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  • Rigid functional ligand-cyclic metal bridge-functional ligand-type iridium complex framework
  • Rigid functional ligand-cyclic metal bridge-functional ligand-type iridium complex framework
  • Rigid functional ligand-cyclic metal bridge-functional ligand-type iridium complex framework

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Embodiment 1

[0024] The organometallic iridium complex Ir1 chemical formula of the present embodiment is C 46 h 40 f 4 Ir 2 N 4 o 4 , the structural formula is Refer to attached figure 1 , and its synthesis method is as follows: 2 equivalents of peripheral functionalized ligand 1 equivalent of ring metal bridge ligand And 2 equivalents of iridium trichloride were put into the reaction vessel. Under a nitrogen atmosphere, a mixed solvent of ethylene glycol ether and water (volume ratio: 3:1) was added into the reaction vessel. Heating to 110° C. for 24 hours in a nitrogen atmosphere; stopping heating, cooling to room temperature, adding deionized water to the reaction mixture solution, solids were precipitated, filtered and dried. Add the dried solid, β-diketone ligand, and anhydrous sodium carbonate into ethylene glycol ether at a ratio of 1:2:10, and heat to 110°C for 24 hours in a nitrogen atmosphere. After the reaction, the reaction mixture was poured into 30 mL of deionize...

Embodiment 2

[0026] The organometallic iridium complex Ir2 chemical formula of the present embodiment is C 54 h 60 Ir 2 N 4 o 4 , the structural formula is Refer to attached figure 1 , and its synthesis method is as follows: 2 equivalents of peripheral functionalized ligand 1 equivalent of ring metal bridge ligand And 2 equivalents of iridium trichloride were put into the reaction vessel. Under a nitrogen atmosphere, a mixed solvent of ethylene glycol ether and water (volume ratio: 3:1) was added into the reaction vessel. Heating to 110° C. for 24 hours in a nitrogen atmosphere; stopping heating, cooling to room temperature, adding deionized water to the reaction mixture solution, solids were precipitated, filtered and dried. Add the dried solid, β-diketone ligand, and anhydrous sodium carbonate into ethylene glycol ether at a ratio of 1:2:10, and heat to 110°C for 24 hours in a nitrogen atmosphere. After the reaction, the reaction mixture was poured into 30 mL of deionized wat...

Embodiment 3

[0028] The organometallic iridium complex Ir3 chemical formula of the present embodiment is C 66 h 52 Ir 2 N 4 o 12 S 4 , the structural formula is Refer to attached figure 1 , and its synthesis method is as follows: 2 equivalents of peripheral functionalized ligand 1 equivalent of ring metal bridge ligand And 2 equivalents of iridium trichloride were put into the reaction vessel. Under a nitrogen atmosphere, a mixed solvent of ethylene glycol ether and water (volume ratio: 3:1) was added into the reaction vessel. Heating to 110° C. for 24 hours in a nitrogen atmosphere; stopping heating, cooling to room temperature, adding deionized water to the reaction mixture solution, solids were precipitated, filtered and dried. Add the dried solid, β-diketone ligand, and anhydrous sodium carbonate into ethylene glycol ether at a ratio of 1:2:10, and heat to 110°C for 24 hours in a nitrogen atmosphere. After the reaction, the reaction mixture was poured into 30 mL of deioniz...

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Abstract

Rigid functional ligand-ring metal bridge-functional ligand-type iridium complex skeleton, the complex contains a functionally modified bridge ligand that can coordinate with two iridium metal centers at the same time; at the same time, each iridium metal The center can also coordinate with two other peripheral functionalized ligands to form a rigid molecular framework with two metal centers and five ligands; there are up to three different bidentate ligands in traditional organic iridium complexes, which can be said to have three Modification points, and the novel molecular framework provided by the present invention has at most five different bidentate ligands, making the number of modification points reach five, significantly increasing the structural diversity and property regulation space of organometallic iridium complexes. It has potential application value in important fields such as performance luminescent materials, catalytic systems, solar energy conversion systems, and chemical and biological detection.

Description

technical field [0001] The invention relates to a high-performance luminescent material in the technical field of organometallic complexes, in particular to a skeleton of a rigid functional ligand-ring metal bridge-functional ligand type iridium complex. Background technique [0002] Organometallic iridium complexes have great application value in important fields such as organic light-emitting diodes, reaction catalysis, solar energy conversion, and chemical and biological detection, and belong to new functional materials. The molecules of organometallic iridium complexes usually have a hexacoordinated octahedral configuration, and the structure with three bidentate ligands is the most common. The ligands are usually modified with functional groups to achieve the purpose of regulating and optimizing the properties of the complexes. Therefore, the structure of the ligands has a great influence on the properties of the organometallic iridium complexes. In addition, the elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00
CPCC07F15/0033
Inventor 杨晓龙孙源慧周桂江
Owner XI AN JIAOTONG UNIV
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