Luminescent gold(III) compounds containing bidentate ligand for organic light-emitting devices and their preparation

摘要

Embodiments of the invention are directed to luminescent gold(III) compounds contains a bidentate ligand with at least one strong σ-donating group, a method of preparation of these compounds and the use of these compounds in organic light emitting devices. The gold(III) compounds have the chemical structure:; wherein: X is a nitrogen atom; Y is selected from a carbon or a nitrogen atom; A-B is a substituted or unsubstituted cyclometalating ligand (for Y═C) or diimine ligand (for Y═N); where A and B are cyclic structure derivatives; R₁ and R₂ are optionally substituted carbon donor ligands attached to the gold atom, with the proviso that R₁ and R₂ are not —CH₃, —CH₂SiMe₃, mesityl, pentafluorophenyl, —CH₂C(O)R′, —CH(R)SO₂CH(R)—, —C₆H₄N═NC₆H₅, and wherein R₁ and R₂ can optionally be combined into a bidentate ligand; and n is greater or equal to zero.