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A kind of platinum green light material containing Schiff base ligand and its preparation method

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

Active Publication Date: 2019-04-30
TAIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of platinum green light material containing Schiff base ligand and its preparation method
  • A kind of platinum green light material containing Schiff base ligand and its preparation method
  • A kind of platinum green light material containing Schiff base ligand and its preparation method

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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 the synthesis and property determination of a novel Schiff base ligand and complex. The Schiff base complex can effectively realize green light emission and belongs to the field of coordination chemistry of inorganic chemistry. The molecular formula of the monomer is: C 19 h 20 BrClF 3 NO 2 PtS, molecular weight: 693.87; PtL·DMSO is 2,4,5-trifluoroaniline 5-tert-butyl-3-bromosalicylaldehyde platinum complex, which belongs to the monoclinic crystal system, and the space group is P2(1) / n ; The unit cell parameters are: α=γ=90.00°, β=95.451(4)°. The novel Schiff base platinum complex luminescent material designed by the invention has a maximum ultraviolet absorption wavelength of 442nm, a maximum phosphorescence emission wavelength of 606nm, and a decomposition temperature of 248°C. This novel complex is easy to synthesize and can be prepared with simple instruments; it has good thermal stability and is not easy to decompose at 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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Patent Type & Authority Patents(China)
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