Citation: Herdtweck, E.; Kummer, S.; Babel, D. (1991). Cation-deficient perovskites Ba2A(I)M2(II)F9 (M(II) = Fe, Co, Ni, Zn) and their hexagonal layer structure. European Journal of Solid State and Inorganic Chemistry, 28, pp. 959-969.
Formula: Ba2 Co2 Cs F9
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Co2 F9 (Co2 F9)
Multiplicity: 1