An organometallic compound represented by Formula 1: M1(L1)n1(L2)n2  Formula 1 wherein, in Formula 1, M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2, wherein X1 is C or N; X10 is C(R10) or N, X11 is C(R11) or N, X12 is C(R12) or N, X13 is C(R13) or N, X14 is C(R14) or N, X15 is C(R15) or N, X16 is C(R16) or N, X17 is C(R17) or N, X18 is C(R18) or N, and X19 is C(R19) or N; at least one of R2 comprises fluorine; b2 is an integer from 1 to 6; * and *′ each indicate a binding site to M1; and the remaining descriptions of Formulae 1A and 1B are as provided herein.