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Electrical stimulation response type iridium (III) coordination compound and application thereof

A technology of stimuli-response and complexes, which is applied in the direction of indium organic compounds, platinum group organic compounds, and compounds containing elements of Group 8/9/10/18 of the periodic table, etc., which can solve the problems of limited and unrealizable applications, Achieve the effect of convenient sensitive detection, high sensitivity, and high-efficiency photoelectric conversion

Active Publication Date: 2021-08-20
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such materials cannot achieve the transition from initial luminescence to another color luminescence, which will limit the further application of such materials in information encryption, photoelectric conversion, and electroluminescent color-changing devices.

Method used

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  • Electrical stimulation response type iridium (III) coordination compound and application thereof
  • Electrical stimulation response type iridium (III) coordination compound and application thereof
  • Electrical stimulation response type iridium (III) coordination compound and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Preparation of complex IR-1

[0033] The specific synthetic route is as follows:

[0034]

[0035] (1) Preparation of Compound 1: Take 2,5-bromopyridine (4 mmol, 940 mg), bromine boric acid (4.1 mmol, 820 mg), potassium carbonate (8 mmol, 1104 mg) and tetrazol pallate (0.2 mmol) , 231mg) in double-mouth bottles, sealing reaction devices, vacuum, drum nitrogen gas, repeated three times; injecting 20 ml of toluene and ethanol, 20 ° C for 24 h, cooling to room temperature, filtration, solution, decompression The solvent was distilled, and then extracted 3 times with saturated sodium chloride solution (50 mL) and dichloromethane (100 mL), the organic phase was separated, and the compound 1 was separated by column chromatography. 1;

[0036] (2) Preparation of Compound 2: Take compound 1 (2.1 mmol, 491 mg) and trihydrate trichloride (1 mmol, 352 mg) in double-mouth bottles, sealing the reaction device, vacuum, drum nitrogen gas, repeated three times; 30 ml of ethylen...

Embodiment 2

[0040] Example II Preparation of Ir-2 complex

[0041] The specific synthetic route is as follows:

[0042]

[0043] Preparation of compound 5 (1): solution of compound 2 (0.29mmol, 500mg) and 4,4'-dimethyl-2,2'-bipyridine (0.59mmol, 109mg) in a double mouth flask, sealed reactor, vacuum, nitrogen drum, repeated three times; deoxygenated solution were injected into 20mL of dichloromethane and methanol, reacted at 55 deg.] C 5 hours, cooled to room temperature, the solvent was removed under reduced pressure, purified by column chromatographic separation by distillation to give compound 5;

[0044] (2) Preparation of Compound 6: The solution of compound 5 (0.29mmol, 400mg), boronic acid for pyridine (1.20mmol, 147mg), tetrakis (triphenylphosphine) palladium (0.05mmol, 58mg) and potassium carbonate (1.16mmol, 160mg) in dual-port flask, sealed reactor, vacuum, nitrogen drum, repeated three times, deoxygenated solution were injected into 15mL toluene and ethanol, the reaction at 80 d...

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PUM

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Abstract

The invention discloses an electrical stimulation response type iridium (III) coordination compound and application thereof. The electrical stimulation response type iridium (III) coordination compound is formed by modifying different sites of a benzene ring or a pyridine ring of a C^N ligand of a coordination compoundwith an ethyl pyridinium salt unit to construct a viologen ligand and introducing an electron-withdrawing amide group or an electron-donating methyl group to an N^N ligand. According to the invention, the reversible oxidation-reduction characteristic of a viologen structure is mainly utilized, the influence of an electron donating or electron withdrawing group on the electron transfer state of the complex is combined, and under external stimulation, the electron transfer state of the iridium (III) coordination compoundis changed so as to change the photophysical property of the complex, so that colorful changes of light colors visible to naked eyes can be achieved, and the coordination compoundcan be applied to information storage and encryption fields; and after an ethyl group is introduced to a nitrogen atom of a viologen structural unit, the iridium (III) coordination compoundwith the ethyl viologen ligand has good redox reversibility and chemical stability, and can have good application prospects in electrochromic devices, information storage devices and energy storage devices.

Description

Technical field: [0001] The present invention belongs to the technical field of organic optoelectronic material, and more particularly to a class of electrical stimulation lunosal iridium (III) complex based on a purple ligand and its application thereof. Background technique: [0002] In recent years, light-emitting materials such as light, electricity, have an important application in biomedical and imaging, optoelectronic components, sensors, information security and encryption protection. Currently, light and electrical stimulating materials mainly include spirospaveran, azobenzene, diaryl - based and purple essence compounds. Among them, the purple compound material has excellent oxidative reducing reactor, unique photophysody, photochemical properties, and electrochemical properties, is a class of photoelectric conversion, photolourin, and electrochromic materials. [0003] The main working mechanism of purple essence compounds is to receive external stimulus, such as elect...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K9/02G02F1/1503
CPCC07F15/0033C09K9/02G02F1/1503C09K2211/185C09K2211/1029Y02E10/549
Inventor 张寅兰怡萍王雪城赵强刘淑娟黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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