| abstract |
Formula I [Chemical 1] Is provided. In formula I, R 1 to R 10 are the same or different and are deuterium of H, D, alkyl, aryl, alkoxy, aryloxy, silyl, or alkyl, aryl, alkoxy, aryloxy and silyl. The adjacent R groups can be joined together to form a ring, and all other sites are H or D. In addition, in Formula I, (i) at least one of R 1 -R 3 and at least one of R 4 -R 6 is alkyl, alkoxy, silyl or a deuterated analog thereof, and (ii) ) At least one of R 1 to R 3 and at least one of R 4 to R 6 is aryl, aryloxy or a deuterated analog thereof. |