Lattice Energy Calculator


This calculator should be used in conjunction with the notes on 'Understanding Crystal Structures'.

Choose a cation from the list or enter values for charge and radius
   
Cation:
Na+
Cation radius (pm):
Cation charge:
   
Lattice Energy (kJ mol-1)
(repulsive part shown in parenthesis)
 
Hard Sphere:
Born-Landé:
Born-Mayer:
Kapustinskii:






Choose the cation, anion and structure type from the lists provided or choose your own values for the ion charges and radii, the structure type and the value of n.

Press "calculate" to work out the different ionic lattice energies and "reset" to clear all entries.
 
Choose an anion from the list or enter values for charge and radius
 
Anion:
Cl-
Anion radius (pm):
Anion charge:
   
 
Choose a structure type from the list or enter a value for the Madelung constant. This is not needed for the Kapustinskii equation.
 
Structure:
Rocksalt
Madelung constant:
   
 
Pick a value for the compressibility factor. This is not needed for the Kapustinskii equation.
n:
p (rho):