A biscarbazole derivative is represented by the following formula (1). A1 and A2 of the following formula (1) represent an aromatic hydrocarbon group having 6 to 30 ring carbon atoms or an aromatic heterocyclic group having 1 to 30 ring carbon atoms. However, at least one of A1 and A2 represents an aromatic heterocyclic group having 1 to 30 ring carbon atoms. Y1 to Y15 represent CR or a nitrogen atom. One of Y8 to Y11 is C (carbon atom) obtained by removing R from CR. The obtained C is bonded to L3. R each independently represents a hydrogen atom, an aromatic hydrocarbon group or the like. L1 to L3 represent a single bond or a divalent linking group. When L3 is a single bond and is bonded to Y11, L1 and L2 are divalent linking groups.
一种双
咔唑衍
生物由以下式(1)表示。以下式(1)中的A1和A2代表具有6至30个环碳原子的
芳香烃基或具有1至30个环碳原子的芳香杂环基。然而,A1和A2中至少一个代表具有1至30个环碳原子的芳香杂环基。Y1至Y15代表CR或氮原子。Y8至Y11中的一个是通过从CR中去除R而获得的碳(碳原子)。获得的C与L3键合。R分别代表氢原子、
芳香烃基或类似物。L1至L3代表单键或二价连接基团。当L3为单键且与Y11键合时,L1和
L2为二价连接基团。