5,6-diphenyl-5,6-dihydrodibenzC,E1,2azaphosphorine and 6-phenyl-6H-dibenzoC,E as organic electroluminescent materials for OLEDs 1,2thiazine-5,5-dioxide derivatives and similar compounds

摘要

The present invention relates to formula (1) as an organic electroluminescent material for use in organic electroluminescent devices, for example in organic light emitting diodes (OLEDs). of 5,6-diphenyl-5,6-dihydrodibenz[c,e][1,2]azaphosphorine and 6-phenyl-6H-dibenzo[c,e][1,2]thiazine 5,5-dioxide derivatives and similar compounds, wherein the symbols used are as follows: Z is the same or different at each occurrence and is PAr 2 or S(=O); E is the same or different in each case and is O or S when the symbol Z to which this E binds is PAr 2 and O when the symbol Z to which this E binds is S(=O); L is selected from the group consisting of a single bond, NAr 2 , O, S, S(=O) 2 , P(=O)Ar 2 , -X=X- and -C(=O)-NAr 2 ; The remaining symbols are defined in the claims. The present invention discloses examples of synthesis of compounds of the present invention, preparation of OLEDs containing these exemplary compounds, and results for such electroluminescent devices.