Abstract: Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.

Abstract: Methods of making novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing.

Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.

Abstract: Novel phosphorescent platinum complexes containing tetradentate ligands are provided. The disclosed compounds have three 6-membered metallocycle units in each tertadentate ligand. The disclosed compounds have desirable electronic properties that make them useful when incorporated into a variety of OLED devices.

Abstract: Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

Abstract: A method of making ligands for producing novel heteroleptic iridium complexes is provided. The method includes reacting the condensation product of an aryl 1,2-diamine and an aryl aldehyde with manganese dioxide in a solvent. The novel iridium complexes produced using the ligands are useful compounds in OLED devices.

Abstract: Novel phosphorescent heteroleptic iridium complexes with benzimidazole and phenylpyridine ligands are provided. These iridium complexes can improve OLED properties, and are useful in white light applications.

Abstract: Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

Abstract: Compounds comprising a 2-phenylpyridine ligand further substituted with a heterocyclic group are provided. In particular, the compound comprises a 2-phenylpyridine ligand further substituted with a nitrogen-containing heterocycle. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and lifetime.

Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.

Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.

Abstract: Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.

Abstract: Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.

Abstract: A method of making ligands for producing novel heteroleptic iridium complexes is provided. The method includes reacting the condensation product of an aryl 1,2-diamine and an aryl aldehyde with manganese dioxide in a solvent. The novel iridium complexes produced using the ligands are useful compounds in OLED devices.

Abstract: Novel heteroleptic iridium complexes are provided. These iridium complexes are useful compounds in OLED devices. The ligands for these novel complexes may be obtained using a new synthetic methodology that utilizes manganese dioxide.

Abstract: The present invention relates to 1-(4-ureidobenzoyl)piperazine derivatives having the general Formula I (We bring to your attention that formula I is not provided on this electronic version as it is provided in the abstract of the paper copy) Wherein R1 is (C1-8)alkyl, (C3-8)cycloalkyl or (C3-8)cycloalkyl(C1-3)alkyl, each of which may be substituted by hydroxy, cyano or halogen; R2 represents 1 or 2 optional halogens; R3 is (C1-6)alkyl, (C3-6)cycloalkyl or (C3-6)cycloalkyl(C1-3)alkyl, each of which may be substituted by one or more halogens; A represents a heteroaryl ring system comprising 1-3 heteroatoms selected from N, O and S, which ring system is 5- or 6-membered when X is C, and 5-membered when X is N; n is 1 or 2; or a pharmaceutically acceptable salt thereof; to pharmaceutical compositions comprising the same, and to the use of a these 1-(4-ureidobenzoyl)piperazine derivatives for the manufacture of a medicament for treating or preventing atherosclerosis and related disorders associated with cholester

Abstract: Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

Abstract: Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.

Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.

Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.