Patent ID: 8580399
Filing Date: 2013-11-12
Classification: C07D,H01L

Abstract:
1. A compound of formula I: wherein Y is selected from the group consisting of: wherein A, B, C, and D are independently selected from the compound of formula II: wherein X X X X X X X X wherein A, B, C, and D are connected to each other through C—N bonds, where N is in the 9-position; wherein at least one of A, B, C, and D is not carbazole; wherein X is an aryl or heteroaryl linker that is optionally further substituted; wherein Y and X are connected through a C—N bond, where the C—N bond is defined as a bond between a nitrogen atom at the 9-position in one of A, B, C, and D, if present, and a carbon atom of X; wherein R wherein Z is selected from the group consisting of dibenzothiophene, dibenzofuran, dibenzoselenophene, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene that is optionally further substituted.