Figure 1
Idealized arrangement of columns and chains for a compound with the stoichiometry x = 2/17. The modulation wavevector component is γC = 19/34, the ratio between octahedra and prisms is 15:2. For the sake of better presentation, the polyhedra of the right column are drawn in a transparent mode, the other two are solid. On the right side, interatomic distances for the central atoms of the polyhedra, i.e. Rh—Ni and Rh—Rh, respectively, are indicated, as well as O—O distances on the left side for the height of the trigonal prisms (these values are derived from this idealized arrangement). |