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A kind of orange light-emitting material and its preparation method and light-emitting method

A luminescent material, orange light technology, applied in luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve problems such as low manufacturing cost, and achieve the effect of improving selectivity, promoting positive movement, and mild conditions

Active Publication Date: 2020-10-09
湖北泰鑫精锻科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of WOLEDs is comparable to that of fluorescent lamps and inorganic light-emitting diodes, but its manufacturing cost is lower. From an application point of view, WOLEDs are very attractive and are flat-panel light sources, unlike most light sources in use today.

Method used

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  • A kind of orange light-emitting material and its preparation method and light-emitting method
  • A kind of orange light-emitting material and its preparation method and light-emitting method
  • A kind of orange light-emitting material and its preparation method and light-emitting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 of the present invention provides a target product 3h (N-[(2-pyridyl)benzimidazole]methylene-bi(2-pyridyl)benzimidazole platinum (tolanylacetylene) complex) The preparation method:

[0023] (1) Synthesis of 1h: Weigh 2580mg (13.2mmol) of 2-(2-pyridine)benzimidazole and grind it into powder and add it to the flask, then add KOH 840mg (15mmol) and tetrabutylammonium bromide 110mg ( 0.3mmol), add 2 to 3 drops of ultrapure water into the flask, and stir the mixture in the flask into an off-white viscous substance, then add 50ml of CH 2 Cl 2 , after stirring and mixing evenly, after reacting at room temperature for 36 hours, the color of the mixed solution becomes light yellow, stop the reaction, heat the mixed solution to evaporate the solvent (the heating temperature is not particularly limited, as long as the solvent can be evaporated) , the remaining solute was eluted with petroleum ether and ethyl acetate at a volume ratio of 1:1, and then separated by colum...

Embodiment 2

[0033] Example 2 of the present invention provides a target product 3h (N-[(2-pyridyl)benzimidazole]methylene-bi(2-pyridyl)benzimidazole platinum (tolanylacetylene) complex) The preparation method:

[0034] (1) Synthesis of 1h: Weigh 2340mg (12mmol) of 2-(2-pyridine) benzimidazole and grind it into powder, add it to the flask, then add 728mg (13mmol) of KOH and 37mg (0.1 mmol), add 2 to 3 drops of ultrapure water to the flask, and stir the mixture in the 1h 80.4 of the flask into an off-white viscous substance, then add 30ml of CH 2 Cl 2 , after stirring and mixing evenly, after reacting at room temperature for 30 hours, the color of the mixed solution turns light yellow, stop the reaction, heat the mixed solution to evaporate the solvent, and use petroleum ether and ethyl acetate with a volume ratio of 1:1 for the remaining solute After the ester was eluted and separated by column chromatography, a white solid was obtained for 1h;

[0035] (2) Synthesis of 2h: Weigh the mg...

Embodiment 3

[0039] Example 3 of the present invention provides a target product 3h (N-[(2-pyridyl)benzimidazole]methylene-bi(2-pyridyl)benzimidazole platinum (tolanylacetylene) complex) The preparation method:

[0040] (1) Synthesis of 1h: Weigh 2925 mg (15 mmol) of 2-(2-pyridine) benzimidazole and grind it into powder, add it to the flask, then add 1008 mg (18 mmol) of KOH and 175 mg (0.5 mmol) of tetrabutylammonium bromide to the flask. mmol), add 2 to 3 drops of ultrapure water to the flask, and stir the mixture in the flask into an off-white viscous substance, then add 70ml CH to the flask 2 Cl 2 , after stirring and mixing evenly, after reacting at room temperature for 40 hours, the color of the mixed solution turns light yellow, stop the reaction, heat the mixed solution to evaporate the solvent, and use petroleum ether and ethyl acetate with a volume ratio of 1:1 for the remaining solute After the ester was eluted and separated by column chromatography, a white solid was obtained...

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Abstract

The invention discloses an orange luminescent material, which is a compound containing a platinum alkynyl group, and the molecular formula is C 41 h 28 N 6 Pt, with a molecular weight of 799, is an orange light-emitting material with a clear spatial structure and an accurate molecular formula. Its molecules contain alkynyl groups, conjugated large π bonds, and Pt(II) ions with rich optical activity, etc. , which is beneficial to electronic transition and energy transfer, so that the compound of the present invention has good photoelectric activity. The invention also discloses a preparation method of the orange luminescent material, comprising: 2-(2-pyridine) benzimidazole and methylene chloride synthesis intermediate 1h, 1h and dimethyl sulfoxide platinum chloride synthesis intermediate 2h, and finally 2h and phenylacetylene to synthesize the material, the preparation method provided by the invention is simple to operate and has good reaction selectivity. The invention also provides a luminescent method of the orange luminescent material.

Description

technical field [0001] The invention relates to the technical field of organic luminescent materials, in particular to an orange luminescent material, a preparation method and a luminescent method thereof. Background technique [0002] Against the backdrop of increasingly prominent global energy shortages, white organic light-emitting devices (White Organic Light-Emitting Devices, WOLEDs) are widely used due to their wide source of materials, high performance, and the ability to realize large-area flexible display and lighting. focus on. The performance of WOLEDs is comparable to fluorescent lamps and inorganic light-emitting diodes, but its manufacturing cost is lower. From an application point of view, WOLEDs are very attractive and are flat-panel light sources, unlike most light sources in use today. [0003] In recent years, many Pt(II) complexes with high brightness emission have been used as fluorescent materials in organic light-emitting devices (OLEDs). Metallic pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F15/0086C09K2211/185H10K85/346
Inventor 金传明万雨琦张鲲鹏杜晓刚周俊强
Owner 湖北泰鑫精锻科技有限公司
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