| 摘要 |
There is provided a compound having Formula (I). In the formula: R1 can be alkyl, aryl, alkylaryl, or deuterated analogs thereof; R2 can be alkyl or deuterated alkyl; R3 can be H, D, aryl, or deuterated aryl; and R4-R6 are the same or different and can be H, D, alkyl, or deuterated alkyl. In the formula, at least one of the following conditions is met: (i) R1 is a secondary alkyl, a tertiary alkyl, aryl, alkylaryl, or deuterated analog thereof; (ii) R3 is aryl or deuterated aryl; (iii) at least one of R3-R6 is D. |
