Although Goldschmidt tolerance elements can semi-quantitatively forecast structural distortion on the basis of steric hindrance in 3D perovskites, It's not at all simple to use to second perovskites, because the layered segregated buildings in 2nd perovskites enable the incorporation of greater organic cations in the inorganic cages26,27,28,29,30. The obvious peace https://crithitceramics.com/product/fireball/