| 摘要 |
<p>PURPOSE:To provide a new oxadiazole compound excellent in film-forming properties, capable of exhibiting a sufficient brightness and useful as a luminescent material constituting an electroluminescent device, an electron-transporting material, etc. CONSTITUTION:A compound of formula I (Ar is an aryl, provided that phenyl and 4-tert-butylphenyl are excluded). The compound is obtained by reacting 5,5'-(4,4'-dibenzyl)ditetrazole of formula II with a carboxylic acid chloride of formula III. The compound of formula I is excellent in film-forming properties. If the compound is used as a constituting component of an electroluminescent device, a device exhibiting a lower deterioration with the lapse of time can be obtained. The compound is useful especially as a constituting component of an electron-transporting layer in a blue-electroluminescent device and can provide a durable high-brightness electroluminescent device. In addition, the compound is a fluorescent substance and useful as a fluorescent whitening agent, a laser pigment, etc., in addition to a fluorescent pigment for an electroluminescent device.</p> |
