4,4',4'',4'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetraaniline
4,4',4'',4'''-(Ethene-1,1,2,2-tetrayl)tetraaniline
4,4',4'',4'''-(Pyrene-1,3,6,8-tetrayltetrakis(ethyne-2,1-diyl))tetraaniline
4,4',4'',4'''-(3a1,5-Dihydropyrene-1,3,6,8-tetrayl)tetraaniline
4,4',4'',4'''-([9,9'-Bicarbazole]-3,3',6,6'-tetrayl)tetraaniline
4,4',4'',4'''-(Benzene-1,2,4,5-tetrayltetrakis(ethyne-2,1-diyl))tetraaniline
