Simulation of Crystal Structures for Cubic Bifluorids MR3F10

Crystallochemical simulation of crystal structures for the cubic bifluorides KTb₃F₁₀ and RbEu₃F₁₀ with the use of clusters M₈R₆F₆₈ is conducted. Starting-models for further refinements using computer are found on the basis of analysis of possible ways of joining the clusters within the crystal lattice. Good agreement is obtained between the calculated and experimental parameters of the structures under consideration.