| abstract |
Provided is a material which is useful as a light emitting material for organic light emitting elements.nA light emitting material which is composed of a compound that is represented by general formula (AA).n(In the formula, X represents O, S, N-R 11 , C=O, C(R 12 )(R 13 ) or Si(R 14 )(R 15 ); Y represents O, S or N-R 16 ; Ar 1 represents a substituted or unsubstituted arylene group; Ar 2 represents an aromatic ring or a heteroaromatic ring; and each of R 1 -R 8 and R 11 -R 16 independently represents a hydrogen atom or a substituent.) |