Crystal structure of 4,4′,5,5′-tetraphenyl-2,2′-di-p-tolyl-2′H-1,2′-biimidazole, C44H34N4 - Al-Dies, Al-Anood M.; Asiri, Abdullah M.; Khan, Salman A.; Tiekink, Edward R. T. * (de Gruyter, 2019)