A novel substance exhibiting phosphorescence is provided. The novel substance is an organometallic complex represented by General Formula (G1). In General Formula (G1), R
1
represents a haloalkyl group having 1 to 9 carbon atoms which may have a substituent. In addition, R
2
represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. M represents either a Group 9 element or a Group 10 element.
提供一种新的发出
磷光的物质。该新物质是一种有机
金属配合物,其通式表示为(G1)。在通式(G1)中,R1代表具有1至9个碳原子的卤代烷基,可以具有取代基。此外,R2代表具有1至6个碳原子的烷基,具有5至8个碳原子的环烷基(可以具有取代基)或具有6至12个碳原子的芳基(可以具有取代基)中的任何一种。此外,Ar代表具有6至13个碳原子的
芳烃基(可以具有取代基)。M代表第9族元素或第10族元素。