Provided is a novel compound having a high lowest triplet excited level (T1 level), a narrow bandgap, and a shallow highest occupied molecular orbital (HOMO) level. A dibenzoxanthene compound is represented by formula [1] described in Claim 1. In formula [1], R1 to R7 are each independently selected from the group consisting of hydrogen, alkyl groups, aryl groups, heterocyclic groups, aryloxy groups, alkoxy groups, amino groups, silyl groups, and cyano groups.
提供的是一种具有高最低三重激发能级(T1能级)、窄带隙和浅最高占据分子轨道(HO
MO)能级的新化合物。其中,式[1]所述的
二苯并噻吩化合物由权利要求1描述。在式[1]中,R1至R7分别独立地选自
氢、烷基、芳基、杂环基、芳
氧基、烷
氧基、
氨基、
硅烷基和
氰基的群组。