Nitrogen-containing compound, electronic component using same and electronic device

Patent metadata

Field	Value
Publication number	US-11718583-B2
Application number	US-202117789557-A
Country	US
Kind code	B2
Filing date	Apr 8, 2021
Priority date	Apr 30, 2020
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

The present disclosure belongs to the field of organic electroluminescent materials, and specifically relates to a nitrogen-containing compound, an electronic component using the nitrogen-containing compound and an electronic device using the nitrogen-containing compound. The nitrogen-containing compound has a structure as shown in Formula 1. When the nitrogen-containing compound of the present disclosure is used in an organic electroluminescent device, properties of the device can be effectively improved.

First claim

What is claimed is:

1. A nitrogen-containing compound, having a structure represented by Formula 1:

wherein X is selected from O, S, N(R 4 ), or C(R 5 R 6 ), R 4 is selected from an aryl with 6 to 12 carbon atoms, or a heteroaryl with 3 to 12 carbon atoms; R 5 to R 6 are each independently selected from an alkyl with 1 to 4 carbon atoms, or an aryl with 6 to 12 carbon atoms;
Ar is selected from a substituted or unsubstituted aryl with 6 to 26 carbon atoms, or a substituted or unsubstituted heteroaryl with 3 to 24 carbon atoms;
L is selected from single bond, or a substituted or unsubstituted arylene with 6 to 20 carbon atoms;
A has a structure represented by the following Formula 1-1 or Formula 1-2:

the substituents in L and Ar are the same or different, and are each independently selected from deuterium, fluorine, cyano, an alkyl with 1 to 4 carbon atoms, an alkoxy with 1 to 4 carbon atoms, an alkylthio with 1 to 4 carbon atoms, a haloalkyl with 1 to 4 carbon atoms, a cycloalkyl with 5 to 10 carbon atoms, an aryl with 6 to 15 carbon atoms, a heteroaryl with 5 to 12 carbon atoms, a trialkylsilyl with 3 to 7 carbon atoms, or triphenylsilyl; in L and Ar, optionally, any two adjacent substituents form a ring;
R 1 to R 3 are the same or different, and are each independently selected from deuterium, fluorine, cyano, an alkyl with 1 to 4 carbon atoms, an alkoxy with 1 to 4 carbon atoms, an alkylthio with 1 to 4 carbon atoms, a fluoroalkyl with 1 to 4 carbon atoms, a cycloalkyl with 5 to 10 carbon atoms, a trialkylsilyl with 3 to 7 carbon atoms, or an aryl with 6 to 12 carbon atoms; and
n 1 , n 2 and n 3 respectively represent the number of R 1 , R 2 and R 3 ; R 1 to R 3 are represented by R j , and n 1 to n 3 are represented by n j , wherein j is a variable representing an integer of 1 to 3; and when j is 1, n j is selected from 0, 1, 2, 3, or 4; when j is 2, n j is selected from 0, 1, 2, or 3; when j is 3, n j is 0, 1, 2, 3, 4, 5, 6, or 7; optionally, any two adjacent R j form a ring.

2. The nitrogen-containing compound of claim 1 , wherein R 1 and R 2 are each independently selected from deuterium, fluorine, cyano, methyl, ethyl, n-propyl, isopropyl, tert-butyl, methoxy, trifluoromethyl, cyclopentyl, cyclohexyl, trimethylsilyl, phenyl, per or naphthyl.

3. The nitrogen-containing compound of claim 1 , wherein Ar is a substituted or unsubstituted group V 1 , the unsubstituted group V 1 is selected from the following groups:

the substituted group V 1 has one or two or more substituents, the substituents in the substituted group V 1 are independently selected from deuterium, fluorine, cyano, an alkyl with 1 to 4 carbon atoms, an alkoxy with 1 to 4 carbon atoms, an alkylthio with 1 to 4 carbon atoms, a fluoroalkyl with 1 to 4 carbon atoms, a cycloalkyl with 5 to 10 carbon atoms, a trialkylsilyl with 3 to 7 carbon atoms, or pyridyl.

4. The nitrogen-containing compound of claim 1 , wherein L is selected from single bond, or a substituted or unsubstituted group V 2 , the unsubstituted group V 2 is selected from the following groups:

the substituted group V 2 has one or two or more substituents, and the substituents in the substituted group V 2 are independently selected from deuterium, fluorine, cyano, an alkyl with 1 to 4 carbon atoms, an alkoxy with 1 to 4 carbon atoms, an alkylthio with 1 to 4 carbon atoms, a fluoroalkyl with 1 to 4 carbon atoms, a cycloalkyl with 5 to 10 carbon atoms, a trialkylsilyl with 3 to 7 carbon atoms, an aryl with 6 to 12 carbon atoms, or triphenylsilyl.

5. The nitrogen-containing compound of claim 1 , wherein X is selected from O, S, N(Ph), or C(CH 3 ) 2 , and n 3 is selected from 0 or 1; R 3 is selected from methyl, tert-butyl, fluorine, cyano, or trimethylsilyl; and Ar is selected from dibenzofuryl, dibenzothiophenyl, 9,9-dimethylfluorenyl, or N-phenylcarbazolyl.

6. The nitrogen-containing compound of claim 1 , wherein the nitrogen-containing compound is selected from the following compounds:

Assignees

• Shaanxi Lighte Optoelectronics Mat Co Ltd

Inventors

• Li Jian
• Ma Tiantian
• Yu Chao

Classifications

• C07D211/54 Primary

  Sulfur atoms · CPC title

• C07C255/42

  the carbon skeleton being further substituted by singly-bound nitrogen atoms, not being further bound to other hetero atoms · CPC title

• C07D209/82

  Carbazoles; Hydrogenated carbazoles · CPC title

• C07D213/38

  having only hydrogen or hydrocarbon radicals attached to the substituent nitrogen atom · CPC title

• C07D213/74

  Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals · CPC title