2,2amp;#x2032;-bibenzoDimidazolidene compound having condensed rings at the 1-, 1amp;#x2032;-, 3- and 3amp;#x2032;-positions, and organic light-emitting element, display device, image information processing apparatus, lighting device, image forming apparatus and exposure unit, each containing the same

摘要

A stable 2,2′-bibenzo[d]imidazolidene compound is provided. The 2,2′-bibenzo[d]imidazolidene compound is expressed by the following General Formula (1). In General Formula (1), Ar₁ to Ar₈ each represent a substituted or unsubstituted condensed ring. R₁ to R₈ each represent a hydrogen atom or a substituent.;