1,2-bis[4-(4-tert-butylphenoxy)phenyl]ethane-1,2-dione

5,6-bis(4-fluorophenyl)-2H-1,2,4-triazine-3-thione

5,6-bis(4-fluorophenyl)-2H-1,2,4-triazin-3-one

1,2-bis(4-phenoxyphenyl)ethane-1,2-dione