Quinoxaline-fused dibenzosuberane based helicenes and organic electroluminescent device using the same
Abstract:
A quinoxaline-fused dibenzosuberane based helicene is shown in formula (1), wherein A is with a structure of formula (2), formula (3a) or formula (3b); X is an oxygen atom, sulfur atom, amino group, or —(CH2)n, wherein n is 0, 1, or 2; R1 and R2 are independently selected from the group consisting of hydrogen atom, halogen atom, formula (4), formula (5) and formula (6); and R3 to R15 are independently selected from the group consisting of hydrogen atom, halogen atom, cyano group, alkyl group, cycloalkyl group, alkoxy group, thioalkyl group, silyl group, alkenyl group, aryl group, heteroaryl group, and amino group.
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