Abstract: This invention relates to compounds containing heterocycles or azaheterocycles and phenylene or azaphenylene wherein at least one ring is a five-membered ring. These novel compounds are useful as host materials for phosphorescent electroluminescent devices.

Abstract: This invention relates to the development of heterocyclic materials for use as red, green, and blue phosphorescent materials in OLED devices. The materials are based in part on a pair of aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. Azaborinane, borazine, and related aromatic structures including boron may be incorporated as fused rings, as pendant groups, or as bridging groups to tune color and improve chemical stability. Desirable structures may be selected by being determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.

Abstract: The present invention includes novel compounds having a boron containing ring for use as charge transporters, hosts or emitters in OLEDs.

Abstract: The present application includes novel containing xanthene and spiro dixanthene ring structures and alkylated variants thereof. These compounds are useful as host materials with high triplet energies for phosphorescent electroluminescent devices.

Abstract: The present application includes novel compounds containing xanthene and spiro dixanthene ring structures. These compounds are useful as host materials with high triplet energies for phosphorescent electroluminescent devices.

Abstract: This invention relates to the development of heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials are based on a pair of 5-membered aromatic or psuedoaromatic rings bonded to one another and complexed to a transition metal. The materials were determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.

Abstract: This invention relates to the development of heterocyclic materials for use as blue phosphorescent materials in OLED devices. The materials were determined computationally to have appropriate triplet energies for use as blue emitters and to possess sufficient chemical stability for use in devices.

Abstract: This invention relates to the development of heterocyclic materials with high triplet excitation energy, which can be used as host materials in electroluminescent devices such as a PHOLED. The materials improve the performance of such devices by enhancing the lifetime and efficiency of the device when the newly developed heterocyclic materials are utilized as a host.

Abstract: According to an aspect of the invention, a rotary feeder for transferring comminuted fibrous material is provided having as components: a rotary feeder housing, having at least one inlet opening for receiving material (chips) and at least one opening for discharging material (chips), and an internal shear edge assembly adjacent the inlet; wherein a protective baffle (doctor blade) is adjacent to the shear edge assembly; a rotor, rotatably mounted with the rotary feeder housing and having pockets for accepting material introduced to the rotary feeder housing; and a power source which rotates the rotor in said housing; and wherein the rotary feeder housing has a recess along the length of the rotor in the inlet at an exit end of the inlet, the recess being of sufficient size to allow the shear edge assembly and doctor blade to sit within the recess.

Abstract: A database is disclosed for storing fast throughput experimentation information. The database is organized in a hierarchical structure such that various database objects have a parent-child relationship. The hierarchical structure facilitates control over user access to various parts of the database. A method is disclosed for automatically populating the database with sample definitions. The sample information is provided in an arbitrary electronic format, which is imported into the database. A method is also disclosed for tracking sample events. Whenever a user takes an action in the database that affects a sample, a sample event is recorded. Finally, a method for automatically importing experimental data resulting from fast throughput experimentation on samples is disclosed. The data is automatically associated with information already stored in the database, such as the test conditions that held during the experimentation and the sample recipes of the samples tested.

Abstract: A database is disclosed for storing fast throughput experimentation information. The database is organized in a hierarchical structure such that various database objects have a parent-child relationship. The hierarchical structure facilitates control over user access to various parts of the database. A method is disclosed for automatically populating the database with sample definitions. The sample information is provided in an arbitrary electronic format, which is imported into the database. A method is also disclosed for tracking sample events. Whenever a user takes an action in the database that affects a sample, a sample event is recorded. Finally, a method for automatically importing experimental data resulting from fast throughput experimentation on samples is disclosed. The data is automatically associated with information already stored in the database, such as the test conditions that held during the experimentation and the sample recipes of the samples tested.

Abstract: A method of estimating transition state energies includes minimizing a sum involving computed atomic coordinates and interatomic distances. For periodic systems, terms of the sum are weighted according to the unit cell in which different atoms reside. For these periodic systems, the sum may be truncated by not including terms corresponding to atom pairs which have a separation distance which is greater than a threshold amount.