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

A method for preparing a luminescent compound with cyclometalated tetradentate ligand comprising the step of:

• wherein:
• (a) G and K are different from each other and independently selected from the group consisting of C and N;
• (b) R1, R2, R3, R4 and R5 groups are each independently selected from the group consisting of OR, NR2, SR, C(O)R, C(O)OR, C(0)NR2, CN, CF3, NO2, SO2, SOR, SO2R, SO3R, halo alkyl, alkenyl, alkynyl, alkylaryl, aryl and cycloalkyl wherein one or more alkyl, alkenyl, alkynyl, alkylaryl, aryl or cycloalkyl is optionally substituted with one or more OR, NR2, SR, C(O)R, C(O)OR, C(O)NR2, CN, CF3, NO2, SO2, SOR, SO2R, SO3R, halo, aryl, substituted aryl, heteroaryl, substituted heteroaryl or a heterocyclic group, wherein R is independently at each occurrence alkyl, alkynyl, alkylaryl, aryl or cycloalkyl;
• and
• (c) n is zero, a positive integer or a negative integer.