Disclosed are an organometallic complex emitting red light with high color purity. An organometallic complex having a structure represented by the following general formula (G1) is provided. In the formula, of R1 to R13, at least one represents an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms and the other or others represent hydrogen. M represents a central metal, which is a Group 9 or Group 10 element. L represents a monoanionic ligand, and n is 2 when the central metal is a Group 9 element or 1 when the central metal is a Group 10 element.