| 主权项 |
1. A material for an organic electroluminescence device comprising a compound represented by any of the following formulas (1) to (3): wherein in the formulas (1) to (3),
X is a sulfur atom S or an oxygen atom O;A1 to A18 are independently CH, CR1 or a nitorogen atom N, and R1 is a substituent;B1, B2 and B3 are independently CH, CR2 or a nitrogen atom N, and R2 is a substituted or unsubstituted alkyl group including 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group including 1 to 50 carbon atoms, a cyano group or a halogen atom;in the formula (1), at least one of A1 to A8, B1 and B2 is N;in the formula (2), at least one of A1 to A3, A9 to A13, B1 and B2 is N;in the formula (3), at least one of A1 to A3, A14 to A18, B1 and B3 is N;when there are plural R1s, the plural R1s may be the same as or different from each other, and when there are plural R2s, the plural R2s may be the same as or different from each other; andadjacent R1s, and adjacent R1 and R2 may independently bond to each other to form a ring structure. |
