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Metal coordination compound, polymer composition, and organic electroluminescence element using them

A metal coordination and compound technology, applied in the field of organic electroluminescence elements

Inactive Publication Date: 2009-05-20
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has become an obstacle in reducing the power consumption of organic EL elements

Method used

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  • Metal coordination compound, polymer composition, and organic electroluminescence element using them
  • Metal coordination compound, polymer composition, and organic electroluminescence element using them
  • Metal coordination compound, polymer composition, and organic electroluminescence element using them

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I—1

[0180] The synthesis of embodiment 1-1 metal coordination compound I (1)

[0181] To a THF mixture of magnesium (1.9g, 80mmol), under an argon stream, slowly add a THF solution of 3-bromo-9-methylcarbazole (30mmol) while stirring uniformly, thereby preparing the Grignard reagent . The obtained Grignard reagent was slowly dropped into a THF solution of trimethyl borate (300 mmol) at −78° C. while stirring uniformly within 2 hours, and then stirred at room temperature for 2 days. The reaction mixture was poured into 5% dilute sulfuric acid containing crushed ice and stirred. The obtained aqueous solution was extracted with toluene, and the extract was concentrated to obtain a colorless solid. By recrystallizing the obtained solid from toluene / acetone (1 / 2), carbazole derivative boronic acid (40%) was obtained as colorless crystals. The obtained carbazole derivative boric acid (12mmol) and 1,2-ethylene glycol (30mmol) were refluxed in toluene for 10 hours, and then recrystalli...

Embodiment I—2

[0190] The synthesis of embodiment 1-2 metal coordination compound I (2)

[0191] In the there-necked flask of 200ml, add 3-(2'-pyridyl)-9-methylcarbazole (1.7mmol), bis[3-(2'-pyridyl)-9-by the synthesis of embodiment I-1 Methylcarbazole—N 1’ , C 2 ](acetylacetonate)iridium(III) (0.28mmol) and 55ml of glycerol were heated and stirred at about 180°C for 8 hours under nitrogen flow. The reactant was cooled to room temperature and poured into 350 ml of 1N-hydrochloric acid, the precipitate was filtered and washed with water, and dried under reduced pressure at 100°C for 5 hours. The precipitate was purified by silica gel column chromatography using chloroform as the eluent to obtain three [3-(2'-pyridyl)-9-methylcarbazole-N 1’ , C 2 ] Iridium (III) light yellow powder.

[0192]

Embodiment I—3～ Embodiment I

[0193] Embodiment I-3~Example I-9 Synthesis of various metal coordination compounds

[0194] In addition to changing the initial raw materials such as carbazole units, ring A, and other ligands, with the same method as the synthesis method of Example I-1 and Example I-2, synthesized as shown in the following Table I-2 Various metal complex compounds.

[0195] Table I-2

[0196]

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Abstract

A metal coordination compound, characterized in that it is represented by one of the following formulae (1) to (6): (1) to (6) [wherein, B represents >NR, >O, >S, >C=O, >SO2, or >CR2; M represents Ir, Rh, Ru, Os, Pd or Pt, and n is 2 or 3; when M is Ir, Rh, Ru or Os and n is 2, M is further bonded with another bi-dentate ligand; and the ring A is a cyclic group containing a nitrogen atom bonded to M]. And also provided is a phosphorescence emitting material which emits a light in a wide visible region from blue to red and also is excellent in the purity of color, reliability and the like.

Description

technical field [0001] The present invention relates to novel metal complexes, polymer compositions, and organic electroluminescence (EL) elements using them. Background technique [0002] In recent years, electroluminescent elements have attracted attention for large-area solid state light source applications as substitutes for, for example, incandescent lamps and gas-filled lamps. On the other hand, the most powerful self-luminous display (display) that can replace the liquid crystal display in the flat panel display (PFD) field is also attracting attention. In particular, an organic electroluminescent (EL) element made of an organic material is being commercialized as a low power consumption type full-color FPD. [0003] So far, general organic EL elements can emit fluorescence when the laser singlet state is relaxed to the ground state. However, the ratio of excitons generated by injecting charges into organic thin films is generally calculated as singlet:triplet=1:3, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00C09K11/06C08K5/34C08L101/00H05B33/14
Inventor 野村理行森下芳伊津田义博
Owner RESONAC CORPORATION