An organometallic compound represented by Formula 1: n M(L 1 ) n1 (L 2 ) n2 Formula 1n wherein L 1 is a ligand represented by Formula 2 and L 2 is a ligand represented by Formula 3; nn n n n n n n n n n n n wherein in Formulae 1, 2, and 3, groups and variables are defined in the specification.