A new anion-deficient fluorite-related superstructure of Bi28V8O62

The [4¯01] projection of two slabs and inter-slab part of the structure in one layer parallel to the (3¯08)=(002¯)F plane (F in subscript indicate a fluorite type structure). The large green circles are Bi atoms. Small blue circles represent partly and fully occupied O sites, respectively. Pink (hatched black) are V1O4 and blue (hatched white) are V2O4 coordination tetrahedra.460