Synthesis, crystal structures, and photophysical properties of a series of novel tetrahydrobenzodiacridines

► Eight tetrahydrobenzo[1,2-c:4,5-c′]diacridine derivatives were synthesized. ► Compound 1b crystallized in the triclinic system with the space groups P-1. ► The eight compounds show good thermal stability. ► Optical properties and electrochemical properties were studied.