Crystal chemistry

Rules of thumb from ionic radii: Pauling’s radius-ratio rule for coordination numbers and Goldschmidt’s tolerance factor for perovskites.

Pauling’s radius-ratio rule: predicting coordination numbers

Pauling's radius-ratio rule: predicting coordination numbers

Goldschmidt’s tolerance factor: which perovskites are cubic

Goldschmidt's tolerance factor: which perovskites are cubic