Compound, light emitting material, and organic light emitting device

Patent metadata

Field	Value
Publication number	US-9818955-B2
Application number	US-201414771520-A
Country	US
Kind code	B2
Filing date	Feb 28, 2014
Priority date	Mar 1, 2013
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

The compound represented by the following general formula is useful as a light emitting material. Ar 1 represents an arylene group, Ar 2 and Ar 3 represent an aryl group, and R 1 to R 8 represent a hydrogen atom or a substituent, provided that at least one of R 1 to R 8 represents a diarylamino group.

First claim

The invention claimed is:

1. A compound represented by the following formula (2):

wherein in the formula (2), R 1 to R 8 and R 11 to R 24 each independently represent a hydrogen atom or a substituent, provided that at least one of R 1 to R 8 represents a substituted or unsubstituted diarylamino group, and R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 7 , R 7 and R 8 , R 11 and R 12 , R 12 and R 13 , R 13 and R 14 , R 14 and R 15 , R 16 and R 17 , R 17 and R 18 , R 18 and R 19 , R 19 and R 20 , R 21 and R 22 , and R 23 and R 24 each may be bonded to each other to form a cyclic structure, provided that at least one combination of R 21 and R 22 , and R 23 and R 24 is bonded to each other to form a cyclic structure.

2. The compound according to claim 1 , wherein in the formula (2), at least one of R 1 to R 4 represents a substituted or unsubstituted diarylamino group, and at least one of R 5 to R 8 represents a substituted or unsubstituted diarylamino group.

3. The compound according to claim 2 , wherein R 3 and R 6 in the formula (2) each represent a substituted or unsubstituted diarylamino group.

4. A light emitting material containing the compound according to claim 1 .

5. A delayed fluorescent emitter having a structure represented by the following formula (2):

wherein in the formula (2), R 1 to R 8 and R 11 to R 24 each independently represent a hydrogen atom or a substituent, provided that at least one of R 1 to R 8 represents a substituted or unsubstituted diarylamino group, and R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 7 , R 7 and R 8 , R 11 and R 12 , R 12 and R 13 , R 13 and R 14 , R 14 and R 15 , R 16 and R 17 , R 17 and R 18 , R 18 and R 19 , R 19 and R 20 , R 21 and R 22 , and R 23 and R 24 each may be bonded to each other to form a cyclic structure, provided that at least one combination of R 21 and R 22 , and R 23 and R 24 is bonded to each other to form a cyclic structure.

6. An organic light emitting device containing a substrate having thereon a light emitting layer containing the light emitting material according to claim 4 .

7. The organic light emitting device according to claim 6 , wherein the organic light emitting device emits delayed fluorescent light.

8. The organic light emitting device according to claim 6 , wherein the organic light emitting device is an organic electroluminescent device.

Assignees

• Univ Kyushu Nat Univ Corp
• Kyulux Inc

Inventors

• Kaji Hironori
• Suzuki Hajime
• Suzuki Katsuaki
• Oiwa Hajime
• Wakamiya Atsushi
• Fukushima Tatsuya
• Suzuki Furitsu
• Murata Yasujiro
• SHIZU Katsuyuki
• Adachi Chihaya

Classifications

• C07F1/005

  without C-Metal linkages · CPC title

• C09K2211/1059

  containing three nitrogen atoms as heteroatoms · CPC title

• C07F7/1836

  Chemistry & Metallurgy · mapped topic

• C07D401/14 Primary

  containing three or more hetero rings · CPC title

• C07D235/06

  with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2 · CPC title