A compound is represented by a formula (100) below, where X1, X2 and X3 are each independently a nitrogen atom or a carbon atom bonded with R2, Y is an oxygen atom, a sulfur atom and the like, R1, R2, R11, R21 and R22 are each a hydrogen atom or a substituent, L1 is a single bond or a linking group, and L2 is a linking group.
一种化合物由下式(100)表示,其中 X1、X2 和 X3 分别独立地为氮原子或与 R2 键合的碳原子,Y 为氧原子、
硫原子等,R1、R2、R11、R21 和
R22 分别为氢原子或取代基,L1 为单键或连接基,
L2 为连接基。