Samsung patents chemical compounds for organic light-emitting displays

1. An organometallic compound represented by Formula 1: Formula 1 M 1 (Ln 1) n1 (Ln 2) n2 wherein, in Formula 1, M 1 is a transition metal, Ln 1 is a ligand represented by Formula 1A, Ln 2 is a ligand represented by Formula 1B, n1 is 1 or 2, and n2 is 1 or 2, wherein, in Formulae 1A, 1B, and 1C, X 11 is C(R 11) or N, X 12 is C(R 12) or N, X 13 is C(R 13) or N, X 14 is C(R 14) or N, X 15 is C(R 15) or N, X 16 is C(R 16) or N, X 17 is C(R 17) or N, and X 18 is C(R 18) or N, T 1 is O or S, X 31 is C(R 31) or N, or is C* or C** in Formula 1C, X 32 is C(R 32) or N, or is C* or C** in Formula 1C, X 33 is C(R 33) or N, or is C* or C** in Formula 1C, X 34 is C(R 34) or N, or is C* or C** in Formula 1C, i) one of X 31 or X 32 is C* and the other of X 31 or X 32 is C**, X 33 is C(R 33) or N, and X 34 is C(R 34) or N; ii) one of X 32 or X 33 is C* and the other of X 32 or X 33 is C**, X 31 is C(R 31) or N, and X 34 is C(R 34) or N; or iii) one of X 33 or X 34 is C* and the other of X 33 or X 34 is C**, X 31 is C(R 31) or N, and X 32 is C(R 32) or N, ring CY 1, ring CY 21, and ring CY 22 are each independently a C 5 -C 30 carbocyclic group or a C 1 -C 30 heterocyclic group, Y is O, S, C(R 41)(R 42), or N(R 41), a1, a21, and a22 are each independently 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, a3 is 1 or 2, C* is carbon corresponding to a position of one of X 31 to X 34, and C*″ is carbon corresponding to a position of one of X 31 to X 34, C* and C** are linked to each other via a single bond or a double bond, R 1 to R 3, R 11 to R 18, R 21, R 22, R 31 to R 34, R 41, and R 42 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, —SF 5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 1 -C 60 alkylthio group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 7 -C 60 alkyl aryl group, a substituted or unsubstituted C 7 -C 60 aryl alkyl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 2 -C 60 alkyl heteroaryl group, a substituted or unsubstituted C 2 -C 60 heteroaryl alkyl group, a substituted or unsubstituted C 1 -C 60 heteroaryloxy group, a substituted or unsubstituted C 1 -C 60 heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —Si(Q 1)(Q 2)(Q 3), —Ge(Q 1)(Q 2)(Q 3), —N(Q 4)(Q 5), —B(Q 6)(Q 7), —P(Q 8)(Q 9), or —P(═O)(Q 8)(Q 9), two or more of a plurality of R 1 are optionally bonded to each other to form a substituted or unsubstituted C 5 -C 30 carbocyclic group or a substituted or unsubstituted C 1 -C 30 heterocyclic group, two or more of a plurality of R 21 are optionally bonded to each other to form a substituted or unsubstituted C 5 -C 30 carbocyclic group or a substituted or unsubstituted C 1 -C 30 heterocyclic group, two or more of a plurality of R 22 are optionally bonded to each other to form a substituted or unsubstituted C 5 -C 30 carbocyclic group or a substituted or unsubstituted C 1 -C 30 heterocyclic group, at least one substituent of the substituted C 5 -C 30 carbocyclic group, the substituted C 1 -