Abstract: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.

Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A hydraulic testing and drying apparatus for a water cooled-stator in an electrical generator. The apparatus is mounted on a sled (10) and comprises an air compressor (16), regenerative air dryer (18), receiver (20), vacuum pump (22) and associated piping and control devices. After the receiver is coupled to the inlet to a stator winding, dry and clean compressed air pressurizes the receiver and stator winding. Pressure activates valves between the compressor and receiver, and at the drain of the stator winding operate so that the pressurized air purges moisture from the stator windings. Through the use of pressure activated switches, cycles of pressurization and purging are run automatically. Hygrometer sensors monitor the dewpoint of the air entering the generator and of the air exhausting from the generator. A vacuum pump (22) creates a vacuum within the stator winding to complete drying and to test the decay of a vacuum in the stator windings.