1,1'-bis(phenylethynyl)-3,3'-biimidazo[1,5-a]pyridinyl

3-(phenylethynyl)-1-(4-trifluoromethylphenylethynyl)-imidazo[1,5-a]pyridine

1,1'-bis(4-trifluoromethylphenylethynyl)-3,3'-biimidazo-[1,5-a]pyridinyl

1-(2-phenylethynyl)-4-(trifluoromethyl)benzene

triisopropyl((4-(trifluoromethyl)phenyl)buta-1,3-diyn-1-yl)silane