| 摘要 |
<p>Disclosed is an organic electroluminescent device material containing an indenofluorenedione derivative represented by the following formula (I). (In the formula, Xand Xmay be the same or different and each represents a specific divalent group; and R-Rmay be the same or different and each represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic ring, a halogen atom, a fluoroalkyl group, an alkoxy group, an aryloxy group or a cyano group, and R-Ror R-Rmay respectively combine together to form a ring.)</p> |
