N,N'-Di(4-pyridyl)-1,6,7,12-tetra(4-tert-butylphenoxy)perylene-3,4:9,10-tetracarboxylic acid bisimide,5,6,12,13-tetrakis(4-(tert-butyl)phenoxy)-2,9-di(pyridin-4-yl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone,Anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone, 5,6,12,13-tetrakis[4-(1,1-dimethylethyl)phenoxy]-2,9-di-4-pyridinyl-