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-SulfurThe alternative unit cell of wurtzite is shown to the left. The sulfide ions are shown in blue and the zinc ions in grey. Note that the two types of ion have exchanged position from the earlier unit cell but the symmetry of the unit cell is preserved.
Go to page 9 to consider the conformations of the six-membered rings in the wurtzite structure.
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