| abstract |
The invention relates to organometallic complexes which carry at least one ligand that has a triplet energy of at least 22,000 cm<SUP>-1</SUP>, to a method for producing the organometallic complexes, to a mixture containing at least one organometallic complex according to the invention, to the use of the organometallic complexes or mixture in organic light-emitting diodes, said organometallic complexes being preferably used as emitter materials, and to special triphenylene derivatives substituted with nitrogen or phosphorus. The invention also relates to a method for producing said derivatives. |