Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: A compound of: is disclosed. In Formula III, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sp2 hybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L? is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

Abstract: A compound of: is disclosed. In Formula IV, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sp2 hybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L? is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

Abstract: A compound of: is disclosed. In Formula IV, ring B and ring C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; A-B represents a bonded pair of carbocyclic or heterocyclic rings coordinated to a metal M via a nitrogen atom in ring A and an sp2 hybridized atom in ring B; A-C represents a bonded pair of carbocyclic or heterocyclic rings; M is a metal having an atomic number greater than 40; L? is a monoanionic bidentate ligand; m is the oxidation state of the metal M; and n is at least 1.

Abstract: An OLED containing an emissive dopant that is a heteroleptic complex having the formula Ir(LA-B)2(LC-D) is disclosed.

Abstract: An OLED containing an emissive dopant that is a heteroleptic complex having the formula Ir(LA-B)2(LC-D) is disclosed.

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: In an approach to reducing regression test duration, one or more computer processors receive a first code change. The one or more computer processors retrieve one or more historic code changes relevant to the first code change. The one or more computer processors determine whether one or more failed test cases are relevant to the one or more historic code changes, where the one or more relevant failed test cases and the one or more historic code changes are stored in a table of test history. In response to determining the one or more historic code changes are relevant to one or more failed test cases, the one or more computer processors retrieve the one or more relevant failed test cases from the table of test history.

Abstract: In an approach to reducing regression test duration, one or more computer processors receive a first code change. The one or more computer processors retrieve one or more historic code changes relevant to the first code change. The one or more computer processors determine whether one or more failed test cases are relevant to the one or more historic code changes, where the one or more relevant failed test cases and the one or more historic code changes are stored in a table of test history. In response to determining the one or more historic code changes are relevant to one or more failed test cases, the one or more computer processors retrieve the one or more relevant failed test cases from the table of test history.

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: 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 compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: Novel heteroleptic iridium complexes having the structure of Formula I, are provided. In Formula I, X is selected from the group consisting of NR, BR, and Se; R is selected from hydrogen and alkyl, and each R1, R2, R3, and R4 is independently selected from hydrogen, alkyl, and aryl. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

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: In an approach to reducing regression test duration, one or more computer processors receive a first code change. The one or more computer processors retrieve one or more historic code changes relevant to the first code change. The one or more computer processors determine whether one or more failed test cases are relevant to the one or more historic code changes, where the one or more relevant failed test cases and the one or more historic code changes are stored in a table of test history. In response to determining the one or more historic code changes are relevant to one or more failed test cases, the one or more computer processors retrieve the one or more relevant failed test cases from the table of test history.

Abstract: In an approach to reducing regression test duration, one or more computer processors receive a first code change. The one or more computer processors retrieve one or more historic code changes relevant to the first code change. The one or more computer processors determine whether one or more failed test cases are relevant to the one or more historic code changes, where the one or more relevant failed test cases and the one or more historic code changes are stored in a table of test history. In response to determining the one or more historic code changes are relevant to one or more failed test cases, the one or more computer processors retrieve the one or more relevant failed test cases from the table of test history.

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 comprising a substituted anthracene or acridine ligand are provided. In particular, the compound includes an anthracene ligand substituted at the 9 and 10 positions. The compound may be used in organic light emitting devices to provide devices having improved efficiency and lifetime. In particular, these compounds may be especially beneficial for use in blue-emitting OLEDs.