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Narrowband organic-inorganic hybrid red light emitting material and preparation method for same

A technology for narrow-band emission and luminescent materials, applied in luminescent materials, copper organic compounds, chemical instruments and methods, etc., to achieve the effects of easy preparation, high yield, and simple equipment

Inactive Publication Date: 2016-11-09
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The use of 4,4'-azopyridine as a linking ligand and organic phosphine ligands as auxiliary ligands to design and construct monovalent copper luminescent materials and their synthesis methods has not yet been reported.

Method used

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  • Narrowband organic-inorganic hybrid red light emitting material and preparation method for same
  • Narrowband organic-inorganic hybrid red light emitting material and preparation method for same
  • Narrowband organic-inorganic hybrid red light emitting material and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 (X = Cl)

[0038] Weigh 0.0623gCu(PPh 3 ) 2 Dissolve Cl (0.010mol) in 3.0ml of dichloromethane to obtain a colorless solution, put it into a test tube, add 3.0ml of methanol / dichloromethane (1:1), and finally add 0.0184g of 4,4'-azopyridine (0.010mol) Red solution in 3.0 ml of methanol and the layers were allowed to separate. A few days later, a large number of black crystals were formed. After filtration, a large number of black blocky crystals were obtained, washed with anhydrous ether, and dried in air. The yield was 0.0441g, and the yield was 82%. Elemental Analysis Calc.For C 24 h 21 Cl 3 CuN 2 P(%): C53.55, H 3.93, N 5.20. Found(%): C 53.70, 7H 3.89, N 5.15. FT-IR (KBr pellet, cm -1 ): 3071(w), 2925(w), 1631(m), 1596(m), 1569(m), 1478(m), 1433(s), 1416(m), 1384(m), 1230(w ), 1182(w), 1094(m), 1027(w), 848(m), 835(m), 745(m), 695(s), 574(m), 522(s), 504(m ), 491(m).

Embodiment 2 X

[0039] Example 2 (X = Cl)

[0040] A large amount of synthesis: weigh 0.6238gCu(PPh 3 ) 2 Cl (0.986mmol) was dissolved in 15.0ml of dichloromethane to obtain a colorless solution, and finally a red solution of 0.1843g of 4,4'-azopyridine in 15.0ml of methanol was added and stirred to obtain a red solution. A few days later, a large number of black crystals were formed. After filtration, a large number of black blocky crystals were obtained, washed with anhydrous ether, and dried in air. The yield was 0.4512g, and the yield was 85%.

Embodiment 3 X

[0041] Example 3 (X = Br)

[0042] Weigh 0.0672gCu(PPh 3 ) 2 Dissolve Br (0.010mmol) in 3.0ml of dichloromethane to obtain a colorless solution, put it into a test tube, add 3.0ml of methanol / dichloromethane (1:1), and finally add 0.0184g of 4,4'-azopyridine (0.010mmol) Red solution in 3.0 ml of methanol and the layers were allowed to separate. A few days later, a large number of black crystals were formed. After filtration, a large number of black blocky crystals were obtained, washed with anhydrous ether, and dried in air. The yield was 0.0391g, and the yield was 78%. Elemental Analysis Calc. for C 23 h 19 BrCuN 2 P(%): C55.49, H 3.85, N 5.63. Found(%): C 55.34, H 3.91, N 5.27.FT-IR (KBr pelletcm -1): 3072(w), 1632(m), 1597(m), 1479(m), 1433(s), 1415(m), 1384(w), 1229(w), 1161(w), 1110(w ), 1095(m), 1057(w), 1045(w), 1028(w), 848(m), 750(s), 696(s),545(m), 522(s), 504(m ), 489(m).

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Abstract

The invention discloses a narrowband organic-inorganic hybrid red light emitting material and a preparation method for the same. The light emitting material is a type of coordination polymer obtained by self-assembling copper-phosphorus halide and 4,4-azopyridine (4-Azpy), and a molecular structure of the material is [(PPh3)2Cu2(mu-X)2(mu-4-Azpy)]n (X=Cl, Br, I), where PPh3 is triphenyl phosphine, and 4-Azpy is 4,4-azopyridine. The light emitting material is obtained by assembling and reacting Cu(PPh3)2X (X=Cl, Br, I) and 4,4-azopyridine, and has the advantages of easiness for preparation and purification, simple process, readily available raw materials and the like, is higher in thermal stability, and can be used as a narrowband red light emitting material, and red fluorescence of which the half-peak width does not exceed 15nm can be emitted at about 710nm.

Description

technical field [0001] The invention relates to a narrow-band emitting organic-inorganic hybrid red light material and a preparation method thereof, in particular to a narrow-band emitting organic-inorganic hybrid red light material formed by coordinating binuclear copper and 4,4'-azopyridine ligands and its preparation method. Background technique [0002] Since 1987, Tang C W reported efficient, high-brightness double-layer organic light-emitting diode device (OrganicLight-Omitting Diode, referred to as OLED) (Tang C. W., Vansiyke S. A., Appl. Phys. Lett. 1987, 51, 913-915), because OLED has the advantages of DC low-voltage drive, high luminous efficiency, high brightness and can be made into a large-area flat panel display device, it has become a hot spot in the current research of color display devices. Using different organic materials to prepare electroluminescent devices to produce blue, green and red primary colors is an effective way to realize full-color flat pane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07F1/08
CPCC07F1/08C09K11/06C09K2211/188
Inventor 王龙胜郭辉伍平凡黄莹莹彭超华赖晓玲张妮王福瑶冯治坤吴子杭
Owner HUBEI UNIV OF TECH
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