Materials Data on RbHgO3 by Materials Project
RbHgO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Rb is bonded to twelve equivalent O atoms to form RbO12 cuboctahedra that share corners with twelve equivalent RbO12 cuboctahedra, faces with six equivalent RbO12 cuboctahedra, and faces with eight equivalent HgO6 octahedra. All Rb–O bond lengths are 3.10 Å. Hg is bonded to six equivalent O atoms to form HgO6 octahedra that share corners with six equivalent HgO6 octahedra and faces with eight equivalent RbO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Hg–O bond lengths are 2.19 Å. O is bonded to four equivalent Rb and two equivalent Hg atoms to form a mixture of distorted edge, face, and corner-sharing ORb4Hg2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.