Patent ID: 8497495

Claim:
A compound having Formula I, Formula II, or Formula III: wherein: Ar 1 is the same or different at each occurrence and is selected from the group consisting of phenylene, substituted phenylene, naphthylene, and substituted naphthylene; Ar 2 is the same or different at each occurrence and is an aryl group; M is the same or different at each occurrence and is a conjugated moiety; T 1 and T 2 are independently the same or different at each occurrence and are conjugated moieties; a is the same or different at each occurrence and is an integer from 1 to 6; b, c, and d are mole fractions such that b+c+d=1.0, with the proviso that c is not zero, and at least one of b and d is not zero, and when b is zero, M comprises at least two triarylamine units; e is the same or different at each occurrence and is an integer from 1 to 6; and n is an integer greater than 1 wherein the compound is at least 10% deuterated.