Benzo-fused thiophene / triphenylene hybrid materials

摘要

Triphenylene containing benzo-fused thiophene compounds are provided. Additionally, triphenylene containing benzo-fused furan compounds are provided. The compounds may be useful in organic light emitting devices, particularly as hosts in the emissive layer of such devices, or as materials for enhancement layers in such devices, or both.

主权项

1. A compound represented by the structure of Formula (IV): wherein X is S or O; wherein R2, represent mono, di, tri, tetra, or no substitutions; wherein R1′ represents mono, di, or no substitutions; wherein each R1, R1′, R2, and R3 is an unfused substituent independently selected from the group consisting of H, CnH2n+1, OCnH2n+1, OAr1, N(CnH2n+1)2, N(Ar1)(Ar2), CH═CH—CnH2n+1, C≡CCnH2n+1, Ar1, Ar1—Ar2, CnH2n—Ar1, wherein n is 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10; wherein Ar1 and Ar2 are independently selected from the group consisting of benzene, biphenyl, naphthalene, triphenylene, carbazole, and heteroaromatic analogs thereof; and wherein at least one of R1, R1′, R2, and R3 comprises a triphenylene group.