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Platinum green light material containing Schiff base ligand and preparation method of platinum green light material

A technology of Schiff base and luminescent materials, applied in luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve the problems of low overall efficiency, achieve good electrochemical properties, mild conditions, and good thermal stability Effect

Active Publication Date: 2017-05-10
TAIZHOU UNIV
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  • Abstract
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Problems solved by technology

However, platinum complexes are less reported on PHOLEDs than iridium complexes, and the overall efficiency is much lower, so further research is needed.

Method used

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  • Platinum green light material containing Schiff base ligand and preparation method of platinum green light material
  • Platinum green light material containing Schiff base ligand and preparation method of platinum green light material
  • Platinum green light material containing Schiff base ligand and preparation method of platinum green light material

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Experimental program
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Embodiment Construction

[0024] Implementation column 1

[0025] 1) Take 2,4,5-trifluoroaniline (397mg, 2.70mmol) and 5-tert-butyl-3-bromosalicylaldehyde (653mg, 2.54mmol), put in a 50ml round bottom flask, add 15ml of Water and ethanol, magnetically stirred, refluxed at 75 degrees Celsius for about 6 hours, cooled in a refrigerator until a large amount of orange-yellow solids precipitated, and filtered under reduced pressure. Wash with 95% ethanol for 2-3 times and dry in a drying oven. The product is orange-yellow powder, weighing 0.735, and the yield is 74.9%. 1 HMMR (CDCl 3 400MHZ) δ13.36(s, 1H, OH), 8.64(s, 1H, HC=N), 7.71(d, 1H, J=4.0Hz, Ar-H), 7.35(d, 1H, J=4.0Hz , Ar-H), 7.15-7.26(m, 1H, Ar-H), 7.05-7.11(m, 1H, Ar-H), 1.33(s, 9H, -CH 3 ).IR: 3390, 3076, 2960, 1629, 1514, 1454, 1371, 1267, 1197, 1155, 881, 773.C 17 h 15 BrF 3 NO(386.2063): calcd. C52.87, H 3.91, N 3.63; found C 52.99, H 3.96, N 3.68.

[0026] 2) Take the dried Schiff base ligand (252mg, 0.65mmol) and place it in a 50ml ...

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Abstract

The invention relates to synthesis and property determination of a novel Schiff base ligand and complex and belongs to the field of coordination chemistry of inorganic chemistry, and the Schiff base complex can effectively realize green light emission. A molecular formula of a monomer is C19H20BrClF3NO2PtS, with the molecular weight of 693.87; PtL.DMSO is a 2,4,5-trifluoroaniline5-tert-butyl-3-bromosalicylaldehyde platinum complex and belongs to a monoclinic system, and a space group is P(2)1 / n; lattice parameters are shown as follows: a=10.594(3)angstrom, b=8.767(3) angstrom, c=24.400(7) angstrom, alpha=gamma=90.00 degrees, and beta=95.451(4) degrees. According to the designed novel Schiff base platinum complex luminescent material, the maximum ultraviolet absorption wavelength is 442 nm, the maximum phosphorescent emission wavelength is 606 nm, and the decomposition temperature is 248 DEG C. The novel complex is convenient to synthesize, can be prepared by a simple instrument, has good heat stability and is not prone to decomposition at the high temperature.

Description

technical field [0001] The invention relates to an organic light emitting material, in particular to a green light emitting material of a Schiff base platinum complex and a preparation method thereof. Background technique [0002] The research on OLEDs began in the 1960s. In 1963, Professor Pope of New York University first discovered the electroluminescence phenomenon of organic material single crystal anthracene. In 1987, Tang of Kodak Company in the United States used ultra-thin film technology and a new device structure to make an organic electroluminescent device with low operating voltage and high luminous brightness, which fundamentally changed the research on organic electroluminescent materials. Subsequently, in 1990, Professor Burroughes and Professor Friend of the Cavendish Laboratory of the University of Cambridge in the United Kingdom used polystyrene (PPV) as a light-emitting material to make a polymer electroluminescent device, which opened up a polymer thin f...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07F15/0093C09K2211/185H10K85/346H10K50/00
Inventor 张杰李丹韩得满
Owner TAIZHOU UNIV
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