Resources written by Chas McCaw for sixth form chemistry teaching and beyond.
General interest:
Graphite Buckminsterfullerene Ice White phosphorus Benzene Cyclohexane AdamantaneCubic:
Sodium Caesium chloride Polonium Copper Halite Fluorite Antifluorite Zinc blende DiamondNon-cubic:
Hexagonal:
Magnesium WurtziteTetragonal:
RutileTrigonal:
α-quartzTriclinic:
Copper(II) sulfateOrthorhombic:
α-SulfurMonoclinic:
β-SulfurOther compounds that adopt this structure: Li2O, K2O, Rb2O, Li2S, Na2S, Rb2S and Li2Te.
Note that the unit cell of antifluorite to the left is equivalent to the unit cell of fluorite except metal ions are present in the tetrahedral holes, and the face-centred cubic array is of the non-metal ions.
Go to page 4 to see the polyhedral representation of antifluorite unit cell.