| 主权项 |
1. A compound of formula (I) wherein R1 is H, C3-C8 cycloalkyl, or C1-C8 alkyl; wherein the C3-C8 cycloalkyl may optionally be substituted by C1-C8 alkyl, or C1-C8 perfluoroalkyl; and R2 is H, or C1-C8 alkyl; or R1 is a group of formula and R2 is H; R4 is C1-C8alkyl, CF3, or NR7R9; R4′ is H, CF3 or C1-C8alkyl; R4″ is C1-C8alkyl, or CF3; R7 and R9 are independently of each other or R7 and R9 together with the nitrogen atom to which they are bonded form a group of formula R10 is H, or C1-C8alkyl; R3 and R8 are independently of each other C1-C8alkyl, —Si(C1-C8alkyl)3, or C3-C8cycloalkyl; M is Ir; and L is a monodentate ligand selected from the group consisting of a halide anion, nitrate, sulfate, a hexahaloantimonate anion, an alkoxide anion, a carboxylate anion, a thiocarboxylate anion, a dithiocarboxylate anion, a sulfonate anion, a thiolate anion, a carbamate anion, a dithiocarbamate anion, a thiocarbazone anion and a sulfonamide anion, or a bidentate ligand selected from the group consisting of wherein R11 and R15 are independently of each other hydrogen, C1-C8alkyl, C1-C8perfluoroalkyl, or C2-C10heteroaryl; C6-C18aryl, which may optionally be substituted by C1-C8alkyl; or cyclopentyl or cyclohexyl, each of which may optionally be substituted by C1-C8alkyl, or phenyl; R12 and R16 are independently of each other hydrogen, C6-C18aryl, or C1-C8alkyl, or R12 is a group of formula R13 and R17 are independently of each other hydrogen, C1-C8alkyl, C6-C18aryl, C2-C10heteroaryl, C1-C8perfluoroalkyl, or C1-C8alkoxy, and R14 is C1-C8alkyl, C6-C10aryl, or C7-C11aralkyl, R18 is C6-C10aryl, R19 is C1-C8alkyl, or C1-C8perfluoroalkyl, R20 is hydrogen, C1-C8alkyl, or C6-C10aryl, R21 is hydrogen; or C1-C8alkyl or C1-C8alkoxy, each of which may be partially or fully fluorinated; R22 and R23 are independently of each other CqH2q+1, CqF2q+1, C6H5, or C6F5; each R24 is independently hydrogen, CqH2q+1, or CqF2q+1; R46 is C1-C8alkyl; or C6-C18aryl, which may optionally be substituted by C1-C8alkyl; q is 1 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 or 24, and p is 2, or 3; or L is a bidentate ligand L″ selected from the group consisting of with the proviso that (i) if L is a monodentate ligand, m is 0, 2 or 4, and n is 1, 2 or 3; and (ii) if L is a bidentate ligand, m is 0, 1 or 2, and n is 1, 2 or 3. |
