申请人:E I DU PONT DE NEMOURS AND COMPANY
公开号:US20170200900A1
公开(公告)日:2017-07-13
There is provided a compound having Formula I. In Formula I: R
3
-R
18
are the same or different and are H, D, alkyl, silyl, aryl, deuterated alkyl, denterated silyl, or deuterated aryl, where no more than two R
1
-R
16
are biphenyl and where at least two of R
1
-R
16
have Formula II. In Formula II: Ar is phenyl, naphthyl, heteroaryl, spirofluorenyl, or a deuterated analog thereof; R
11
is the same or different at each occurrence and is D, alkyl, silyl, aryl, deuterated alkyl, deuterated silyl, or deuterated aryl, where adjacent R
11
groups can join to form a fused aromatic ring or fused deuterated aromatic ring; m is an integer form 0-4; n is an integer from 1-5; and the asterick represents a point of attachment.