Calculation of radius ratio for tetrahedral void in close packed lattice Chemistry Notes

Calculation of radius ratio for tetrahedral void in close packed lattice Chemistry Notes

Tetrahedral void is formed by combination of diagonally opposite corners of faces of cube according to figure 1.38.

Calculation of radius ratio for tetrahedral void in close packed lattice Chemistry Notes 1

In figure, the tetrahedral void is represented by sphere of black colour. Hence, in figure 1.38. AB = Face diagonal and AD = Body diagonal
Here edge of cube = a

Calculation of radius ratio for tetrahedral void in close packed lattice Chemistry Notes 2

Calculation of radius ratio for tetrahedral void in close packed lattice Chemistry Notes 3

Chemistry Notes