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CuBrN2P type cuprous complex yellow phosphorescent material based on diphenyleneimine

A technology of phosphorescent materials and complexes, which is applied in the direction of luminescent materials, copper organic compounds, compounds of group 5/15 elements of the periodic table, etc. To achieve the effect of good phosphorescence emission performance, cheap purification, and simple equipment

Inactive Publication Date: 2015-09-30
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ligands used in the current research are limited by o-phenanthroline and bisphosphine ligands, and the suppression of excited state distortion is not ideal, and its luminous efficiency has not yet met the application requirements.

Method used

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  • CuBrN2P type cuprous complex yellow phosphorescent material based on diphenyleneimine
  • CuBrN2P type cuprous complex yellow phosphorescent material based on diphenyleneimine
  • CuBrN2P type cuprous complex yellow phosphorescent material based on diphenyleneimine

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A large number of phosphorescent complexes CuBr(TPP)(DAF)·CH 3 Preparation of Cl microcrystalline sample: Weigh 0.5 mmol of CuBr and dissolve it in 25 mL of chloroform, weigh 0.5 mmol of triphenylphosphine ligand and dissolve it in 15 mL of chloroform, mix the two solutions, and stir to make them fully complexed. Then, the DAF ligand of 0.5mmol was weighed and dissolved in 15mL of chloroform, and then this solution was added to the above solution A, and stirred to make the coordination reaction fully occur, and finally the obtained yellow reaction solution was spun All the solvent was evaporated and dried in vacuo to obtain fine yellow crystalline powder as the product with a yield of 95% (calculated as Cu). Elemental Analysis Calculated (C30H24N2PCl3CuBr): C, 51.97%; H, 3.49%; N, 4.04%. Experimental values: C, 55.35%; H, 3.60%; N, 4.43%. IR (KBr pellet, cm -1 ): 3432m, 3046m, 2934m, 1958w, 1896w, 1593m, 1575m, 1480m, 1434vs, 1412vs, 1395s, 1293m, 1239w, 1183m, 1163s...

Embodiment 2

[0032] Synthesis of Phosphorescent CuBr(TPP)(DAF)·CH 3 Single crystal of Cl: Dissolve CuBr (0.015g, 0.1mmol), ligand 4,5-diazafluorene (0.017g, 0.1mmol) and triphenylphosphine (0.026g, 0.1mmol) in 2ml of CHCl3 , after the ligand was completely dissolved, the three were mixed at the same time, stirred rapidly for 5 minutes, and then filtered to obtain a yellow clear solution. Take 3ml of filtrate at the bottom of the test tube, drop a few drops of CHCl3:n-hexane=1:1 mixed solution, add about 6ml of n-hexane after a little layering, seal the test tube, and leave it for 3 days to obtain a large number of yellow strip-shaped transparent crystals. A yellow strip-shaped transparent crystal with a size of 0.35mm×0.21mm×0.10mm was selected for X-ray single crystal diffraction structure test. The molecular structure of the compound is shown in the attached figure 1 , and its unit cell packing structure is shown in the attached figure 2 .

[0033] p-phosphorescent cuprous complex C...

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Abstract

The invention discloses a CuBrN2P type cuprous complex yellow phosphorescent material based on diphenyleneimine and a preparing method thereof. The phosphorescent complex is obtained through coordination reaction of cuprous bromide and a ligand. The molecular structural formula of the phosphorescent complex is CuBr(TPP)(DAF).CH3Cl, wherein TPP and DAF are electroneutral triphenylphosphine containing a P ligand and heterocyclic ligand 4,5-carbolines respectively. The complex has the advantages that micromolecule purification is easy and luminous efficiency is high and also has the advantage of being capable of being easily dissolved in organic solvent. The material is obtained through direct mixed reaction of cuprous bromide and a ligand solution and has the advantages that technology is simple, equipment is simple, and raw materials are easy to obtain and low in cost. The material can serve as a photoluminescence yellow luminescent material and can also serve as a luminescent layer phosphor material in an electroluminescence device composed of multiple layers of organic materials.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, to the fields of photoluminescent materials and electroluminescent materials, in particular to the field of organic electroluminescent materials. Background technique [0002] From the classification of the type of stimulated light, luminescent materials can be divided into two categories: photoluminescent and electroluminescent materials. Photoluminescence refers to a phenomenon in which a luminescent material is excited by an external light source, an excited state is generated inside the material, and then quickly transitions from the excited state back to the ground state of the material, and at the same time emits photon radiation to the outside world. X-ray radiation, ultraviolet radiation, visible light and infrared radiation can all cause photoluminescence. Photoluminescent materials can be used in scintillators in nuclear detection technology, fluorescence analysis, traffi...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F1/08C07F9/50H01L51/54
Inventor 宋莉吴叶文蒋畅王秋华
Owner ZHEJIANG SCI-TECH UNIV
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