Compound for organic electroluminescence device

摘要

The present invention discloses a compound is represented by the following formula (I) or formula (II), the organic EL device employing the compound as phosphorescent host material, hole blocking material, hole blocking electron transport material, can display good performance.;;The same definition as described in the present invention.

主权项

1. A compound with a general formula (I) or formula (II) as following:Wherein A represent a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group. X1 to X4 independently represent a divalent bridge selected from the atom or group consisting from O, S, C(R5)(R6), N(Ar), Si(R7)(R8). p represent an integer of 0 to 10. q represent an integer of 0 to 4. R1 to R8, and Ar independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 50 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 50 carbon atoms.