6,6'-(ethyne-1,2-diyl)bis(naphthalen-2-ol)

6,6'-(9H-Fluorene-9,9-diyl)di(2-naphthol)

1,1'-(diazene-1,2-diyl)bis(naphthalen-2-ol)

4,4'-(Ethyne-1,2-diyl)bis(2-propoxybenzohydrazide)

6,6'-((((1S,2S)-cyclohexane-1,2-diyl)bis(azanediyl))bis(methylene))bis(2,4-di-tert-butylphenol)

6,6'-bis-diethylamino-9H,9'H-9,9'-ethane-1,2-diyl-bis-purine

6,6'-dichloro-N4,N4'-diisobutyl-N2,N2'-ethane-1,2-diyl-bis-[1,3,5]triazine-2,4-diamine