Title:
2,7-BIS(CARBAZOL-9-YL)FLUORENES
Document Type and Number:
Japanese Patent JP2005239703
Kind Code:
A
Abstract:
To provide new 2,7-bis(carbazol-9-yl)fluorenes having higher glass transition temperatures than those of conventional compounds and excellent in heat resistance, and an organic electroluminescent element using the same.
The 2,7-bis(carbazol-9-yl)fluorenes are expressed by formula (1) [wherein, R1, R2 are the same as or different from each other and are each a 1-4C alkyl; and R3, R4 are the same as or different from each other and are each H or a 1-4C alkyl, provided that any one of R3, R4 is a 1-4C alkyl], and the organic electroluminescent element using the same is provided.
Inventors:
YOSHIZAKI HIROKI
ADACHI CHIHAYA
SASABE HIROYUKI
KASASHIMA DAIKI
ADACHI CHIHAYA
SASABE HIROYUKI
KASASHIMA DAIKI
Application Number:
JP2004233823A
Publication Date:
September 08, 2005
Filing Date:
August 10, 2004
Export Citation:
Assignee:
KOEI CHEMICAL CO
International Classes:
H01L51/50; C07D209/86; C09K11/06; H05B33/14; (IPC1-7): C07D209/86; C09K11/06; H05B33/14