Organometallic compound, organic light-emitting device including the same, and electronic apparatus including the organic light-emitting device

An organometallic compound represented by Formula 1-1A:

• Formula 1-1A
• wherein, in Formula 1-1A,
• M is Pt,
• X1 is O, or S,
• X3 is C,
• X2 and X4 are each N,
• Y1 is C,
• ring CY1 is a naphthalene group, a fluorene group, a carbazole group, a dibenzosilole group, a benzofluorene group, a benzocarbazole group, a naphthobenzofuran group, a naphthobenzothiophene group, a naphthobenzosilole group, a dibenzofluorene group, a dibenzocarbazole group, a dinaphthofuran group, a dinaphthothiophene group, a dinaphthosilole group, a benzene group condensed with an adamantane group, or a benzene group condensed with a norbornane group;
• or a group represented by
• in Formula 1-1A is a group represented by one of Formula CY1-11, CY1-15 and CY1-19,
• Z21 is N or C-[(L21)b21-(R21)c21], Z22 is N or C-[(L22)b22-(R22)c22], Z23 is N or C-[(L23)b23-(R23)c23], Z31 is N or C-[(L31)b31-(R31)c31], Z32 is C-[(L32)b32-(R32)c32], Z33 is N or C-[(L33)b33-(R33)c33], Z41 is N or C-[(L41)b41-(R41)c41], Z42 is C-[(L42)b42-(R42)c42], Z43 is N or C-[(L43)b43-(R43)c43], and Z44 is N or C-[(L44)b44-(R44)c44],
• X51 is N-[(L7)b7-(R7)c7], wherein a group represented by *-[(L7)b7-(R7)c7] in N-[(L7)b7-(R7)c7] is a group represented by Formula 51-2 or 51-12:
• wherein, in Formulae 51-2 and 51-12,
• R51 and R52 are each independently hydrogen, deuterium, a C1-C60 alkyl group, a deuterated C1-C60 alkyl group, a phenyl group, or a deuterated phenyl group,
• c51 is 1, 2 or 3,
• c52 is 1, 2, 3, 4 or 5,
• A51 is a C4-C20 alkyl group,
• A52 is a deuterated C4-C20 alkyl group, and
• * indicates a binding site to a neighboring nitrogen atom,
• L1 is a single bond, a C5-C30 carbocyclic group that is unsubstituted or substituted with at least one R10a, or a C1-C30 heterocyclic group that is unsubstituted or substituted with at least one R10a,
• L21, L22, L23, L31, L32, L33, L41, L43 and L44 are a single bond,
• L42 is a C5-C30 carbocyclic group that is unsubstituted or substituted with at least one R10a, or a C1-C30 heterocyclic group that is unsubstituted or substituted with at least one R10a,
• b1 and b42 are each independently 1, 2, 3, 4, or 5,
• b21, b22, b23, b31, b32, b33, b41, b43 and b44 are 1,
• R1, R21, R22, R23, R31, R32, R33, R41, R42, R43 and R44 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, —SF5, 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 C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C1-C60 alkylthio group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C7-C60 alkyl aryl group, a substituted or unsubstituted C7-C60 aryl alkyl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted C2-C60 alkyl heteroaryl group, a substituted or unsubstituted C2-C60 heteroaryl alkyl group, a substituted or unsubstituted C1-C60 heteroaryloxy group, a substituted or unsubstituted C1-C60 heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Q5), —Ge(Q3)(Q4)(Q5), —B(Q6)(Q7), —P(═O)(Q8)(Q9), or —P(Q8)(Q9),
• c1 and c42 are each independently 1, 2, 3, 4, or 5,
• c21, c22, c23, c31, c32, c33, c41, c43 and c44 are 1,
• a1 is 0, 1, 2, 3, 4, or 5,
• two or more of R31 to R33 are not linked,
• two or more of R41 to R44 are not linked,
• R10a is as described in connection with R1, and
• the substituent of the substituted C1-C60 alkyl group, the substituted C2-C60 alkenyl group, the substituted C2-C60 alkynyl group, the substituted C1-C60 alkoxy group, the substituted C1-C60 alkylthio group, the substituted C3-C10 cycloalkyl group, the substituted C1-C10 heterocycloalkyl group, the substituted C3-C10 cycloalkenyl group, the substituted C1-C10 heterocycloalkenyl group, the substituted C6-C60 aryl group, the substituted C7-C60 alkyl aryl group, the substituted C7-C60 aryl alkyl group, the substituted C6-C60 aryloxy group, the substituted C6-C60 arylthio group, the substituted C1-C60 heteroaryl group, the substituted C2-C60 alkyl heteroaryl group, the substituted C2-C60 heteroaryl alkyl group, the substituted C1-C60 heteroaryloxy group, the substituted C1-C60 heteroarylthio group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group is:
• deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro 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 C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, or a C1-C60 alkylthio group;
• a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, or a C1-C60 alkylthio group, each substituted with deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro 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 C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C7-C60 alkyl aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a C2-C60 alkyl heteroaryl group, a C1-C60 heteroaryloxy group, a C1-C60 heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —Ge(Q13)(Q14)(Q15), —B(Q16)(Q17), —P(═O)(Q18)(Q19), —P(Q18)(Q19), or a combination thereof;
• a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C7-C60 alkyl aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a C2-C60 alkyl heteroaryl group, a C1-C60 heteroaryloxy group, a C1-C60 heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group, each unsubstituted or substituted with deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro 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 C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C7-C60 alkyl aryl group, a C7-C60 aryl alkyl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a C2-C60 alkyl heteroaryl group, a C2-C60 heteroaryl alkyl group, a C1-C60 heteroaryloxy group, a C1-C60 heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —Ge(Q23)(Q24)(Q25), —B(Q26)(Q27), —P(═O)(Q28)(Q29), —P(Q28)(Q29), or a combination thereof;
• —N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —Ge(Q33)(Q34)(Q35), —B(Q36)(Q37), —P(═O)(Q38)(Q39), or —P(Q38)(Q39);
• or
• a combination thereof,
• wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, and Q31 to Q39 are each independently hydrogen;
• deuterium;
• —F;
• —Cl;
• —Br;
• —I;
• a hydroxyl group;
• a cyano group;
• a nitro 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 C1-C60 alkyl group that is unsubstituted or substituted with deuterium, —F, a C1-C60 alkyl group, a C6-C60 aryl group, or a combination thereof;
• a C2-C60 alkenyl group;
• a C2-C60 alkynyl group;
• a C1-C60 alkoxy group;
• a C3-C10 cycloalkyl group;
• a C1-C10 heterocycloalkyl group;
• a C3-C10 cycloalkenyl group;
• a C1-C10 heterocycloalkenyl group;
• a C6-C60 aryl group that is unsubstituted or substituted with deuterium, —F, a C1-C60 alkyl group, a C6-C60 aryl group, or a combination thereof;
• a C6-C60 aryloxy group;
• a C6-C60 arylthio group;
• a C1-C60 heteroaryl group;
• a C2-C60 alkyl heteroaryl group;
• a C2-C60 heteroaryl alkyl group;
• a C1-C60 heteroaryloxy group;
• a C1-C60 heteroarylthio group;
• a monovalent non-aromatic condensed polycyclic group;
• or a monovalent non-aromatic condensed heteropolycyclic group.