The high-pressure form of cadmium vanadate, CdV₂O₆

A new columbite-type modification of CdV₂O₆ has been synthesized at high pressure. It contains zigzag chains of edge-sharing VO₆ octa­hedra. Octa­hedra in adjacent chains share corners and form corrugated layers. Octa­hedrally coordinated Cd atoms, which lie on twofold axes, are situated between the layers.

Pb_2.63Cd₂V₃O₁₂, a cation-deficient garnet-type vanadate

Cation-deficient Pb_2.63Cd₂V₃O₁₂ is the first example of a garnet containing lead and cadmium. The Cd and V atoms fully occupy octa­hedral and tetra­hedral sites, respectively, whereas the Pb atoms partially occupy a dodeca­hedral site. The total Pb and Cd content indicates that vanadium is slightly reduced from the +5 oxidation state.