abstract |
Compound represented by formula (1): (In formula, R< 1 >-R< 8 >, R< 11 >-R< 18 >, R< 21 >-R< 28 >, R< 31 >-R< 38 >, X, Y, L< 1 >, L< 2 >, L< 3 > and Ar are as defined in the specification. .) Provides an organic electroluminescence device having a low driving voltage and excellent emission efficiency. |