Fig. 5: Three types of polyhedra cages in RICE-7.

a truncated tetrahedron T^cage (pink), b small cube B^cage (green), and c cube C^cage (blue). d Representative section of the crystal structure of RICE-7 showing the polyhedra cages. e Totally enclosed cages in RICE-7. f Representation of a mhq-z net, based on a face-sharing truncated polyhedron.