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Rigid functional ligand-cyclometalated 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: 2019-12-31
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • 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

Method used

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  • Rigid functional ligand-cyclometalated bridge-functional ligand type iridium complex framework
  • Rigid functional ligand-cyclometalated bridge-functional ligand type iridium complex framework
  • Rigid functional ligand-cyclometalated 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

The invention discloses a rigid functional ligand-cyclometalated bridge-functional ligand type iridium complex framework. According to the rigid functional ligand-cyclometalated bridge-functional ligand type iridium complex framework, a complex contains a bridge ligand capable of being functionally modified, and the complex can be coordinated with two iridium metal centers at the same time; meanwhile, each iridium metal center can be coordinated with other two peripheral functional ligands to form a rigid molecular framework with two metal centers and five ligands; at most three different bidentate ligands exist in a traditional organic iridium complex, that is to say, three modification points are provided; at most five different bidentate ligands exist in the novel molecular framework provided by the invention, so that the number of modification points reaches five, the structural diversity and the property regulation space of the organic metal iridium complex are remarkably increased, and the organic metal iridium complex has potential application value in the important fields of development of high-performance luminescent materials, catalytic systems, solar conversion systems,chemical and biological detection and the like.

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 Applications(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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