57709-63-4Relevant academic research and scientific papers
Dipyridine-based compound and the use thereof
-
Page/Page column 8-9, (2008/06/13)
The present invention discloses a dipyridine-based compound which can be used as electron-transporting and/or hole blocking material or phosphorous host in organic electroluminescence devices is disclosed. The mentioned dipyridine-based compound is represented by the following formula: wherein R1 and R2 are identical or different, and R1 and R2 are independently selected from the group consisting of: hydrogen atom, aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s); A is selected from the following group: wherein R3 and R4 are identical or different, R5 and R6 are identical or different, R7 and R8 are identical or different, R3, R4, R7, R8 are independently selected from the group consisting of: alkyl moiety and aryl moiety, and R5, R6 are independently selected from the group consisting of: alkyl moiety, aryl moiety and arylamine moiety.
