| abstract |
Formula I [Chemical 1] Wherein Ar 1 and Ar 2 are the same or different and each is an aryl group having at least two electron withdrawing substituents. R 1 and R 2 are the same or different and are alkyl Or R 3 , R 4 , R 5 and R 6 may be the same or different and may be hydrogen, alkyl, or alkoxy (n is 0 or 1). The blue light emitting material represented by these is provided. |