Tetrakis(4-(1H-pyrazol-4-yl)phenyl)methane
1,1,2,2-tetrakis(4-(pyrazole-4-yl)phenyl)ethene
tetrakis(4-(2H-tetrazol-5-yl)phenyl)methane
1,1,2,2-tetrakis(4-(pyrimidin-5-yl)phenyl)ethene