摘要:
An organic light emitting device having an emissive layer comprising an organometallic compound, wherein the organometallic compound is comprised of: a metal having an atomic number of at least 72; at least one mono-anionic, bidentate, carbon coordination ligand bound to the metal; and at least one ligand bound to the metal that is not mono-anionic, not bidentate and/or not a carbon coordination ligand, wherein the at least one mono-anionic, bidentate, carbon-coordination ligand is substituted with at least one of an electron donating substituent and an electron withdrawing substituent; and wherein the mono-anionic, bidentate, carbon-coordination ligand is selected from the group consisting of:
wherein R, R 1 , R 2 , R 3 and R 4 are, independently, hydrogen, halogen, alkyl or aryl.
摘要:
An organic light emitting device having an emissive layer comprising an organometallic compound, wherein the organometallic compound is comprised of: a metal having an atomic number of at least 72; at least one mono-anionic, bidentate, carbon coordination ligand bound to the metal; and at least one ligand bound to the metal that is not mono-anionic, not bidentate and/or not a carbon coordination ligand, wherein the at least one mono-anionic, bidentate, carbon-coordination ligand is substituted with at least one of an electron donating substituent and an electron withdrawing substituent; and wherein the ligand that is not mono-anionic, not bidentate and/or not a carbon coordination ligand is selected from the group consisting of:
wherein E is selected from the group consisting of O, S, Se and Te; X is selected from the group consisting of CH and N; and R, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are, independently, hydrogen, halogen, alkyl or aryl.
摘要:
A complex of formula LL'L"M, LL'MX, LMXX', or L 3 M, wherein L, L', L", X, and X' are inequivalent, bidentate ligands, M is a metal that forms octahedral complexes, and L, L', and L" are monoanionic bidentate ligands coordinated to M through an sp 2 hybridized carbon and a heteroatom.
摘要:
Phosphorescent organometallic compound of formula L 2 IrX, wherein L and X are inequivalent bidentate ligands, X is a monoanionic bidentate ligand; and the L ligands are monoanionic bidentate ligands each coordinated to Ir (iridium) through an sp 2 hybridized carbon and a heteroatom.
摘要:
Phosphorescent organometallic compound of formula L 2 IrX, wherein L and X are inequivalent bidentate ligands, X is a monoanionic bidentate ligand; and the L ligands are monoanionic bidentate ligands each coordinated to Ir (iridium) through an sp 2 hybridized carbon and a heteroatom.
摘要:
A phosphorescent compound having the formula L 2 MX, wherein: M is a metal that forms octahedral complexes; L is a monoanionic bidentate ligand, which is bonded to M through an sp 2 hybridized carbon and a heteroatom; X is a monoanionic bidentate ligand; and L and X are inequivalent.