Patent ID: 8415031
Filing Date: 2013-04-09
Classification: C07D,H01L

Abstract:
1. A compound having the formula Ar(LiDi)n, wherein Ar contains a condensed aromatic ring system having at least three benzene rings and the condensed aromatic ring has a triplet energy lower than 440 nm; wherein Ar is unsubstituted or substituted with one or more groups selected from the group consisting of hydrogen, deuterium, alkyl, alkoxy, amino, silyl, cyano, halogen, and aryl; wherein L is a single bond or a bivalent linking group; wherein n is at least 1; wherein i is an indexing variable that identifies n structures for L wherein each L wherein each D wherein X where each of X wherein at least one of X wherein each R is independently selected from the group consisting of hydrogen, deuterium, alkyl, alkoxy, amino, silyl, cyano, halogen, aryl, and heteroaryl; and wherein R is optionally bound to L.