While Goldschmidt tolerance variables can semi-quantitatively forecast structural distortion on the basis of steric hindrance in 3D perovskites, it is not clear-cut to use to second perovskites, as the layered segregated buildings in 2nd perovskites allow the incorporation of much larger organic cations in the inorganic cages26,27,28,29,thirty. The apparent relaxation https://crithitceramics.com/product/fireball/