Cesium Chloride
An example of a crystal structure which can
be described using the ideas presented above is CsCl. Each ion resides
on a separate, interpenetrating Simple Cubic lattice. The cation
is in the center of the anion unit cell and visa versa, so the two lattices
have the same unit cell dimensions.
(crossed stereo pair)
Note that each lattice is simple cubic, not
body centered cubic. In order for a lattice to be body centered, the same
chemical species (e.g., an atom or ion ) would have to reside at the eight
corners and the center of the unit cell.
Previous - Next