Citation: Cotton, F.A.; Rice, C.E. (1978). La8 Ru4 O21: A mixed-valence ternary ruthenium oxide of a new hexagonal structure type. Journal of Solid State Chemistry, 24, pp. 359-365.
Formula: La8 O21 Ru4
Chemical name: La8 Ru4 O21
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: La16 O42 Ru8 (La8 O21 Ru4)
Multiplicity: 1
Coordination sequences: