| abstract |
An aromatic amine derivative represented by the following formula (1). In the formula, Ar 1 and Ar 2 each represent a substituted or unsubstituted aryl group having 6 to 60 ring carbon atoms. L 1 represents a substituted or unsubstituted arylene group having 6 to 60 ring carbon atoms, and L 2 represents a single bond or a substituted or unsubstituted arylene group having 6 to 60 ring carbon atoms. R 1 and R 2 each represents a substituted or unsubstituted aryl group having 6 to 60 ring carbon atoms. n represents an integer of 0 to 3, and m represents an integer of 0 to 4. X 1 to X 5 each represent a nitrogen atom or CR 3 . However, at least one of X 1 to X 5 is a nitrogen atom. R 3 represents a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 60 ring carbon atoms, and the like. |