| 摘要 |
A compound for use in organic EL devices comprising <?in-line-formulae description="In-line Formulae" end="lead"?>X<SUB>n</SUB>-Y<?in-line-formulae description="In-line Formulae" end="tail"?> wherein X is a compound of the formula and Y is a linking group and R<SUB>1 </SUB>to R<SUB>8 </SUB>and a to d are hydrogen, an alkyl group, an aryl group which may be substituted, an allyl group which may be substituted, a heterocyclic group which may be substituted, an amino group, or an arylamino group which may be substituted. |
