Materials Data on SiHgO3 by Materials Project

Abstract

HgSiO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hg2+ is bonded to twelve equivalent O2- atoms to form HgO12 cuboctahedra that share corners with twelve equivalent HgO12 cuboctahedra, faces with six equivalent HgO12 cuboctahedra, and faces with eight equivalent SiO6 octahedra. All Hg–O bond lengths are 2.59 Å. Si4+ is bonded to six equivalent O2- atoms to form SiO6 octahedra that share corners with six equivalent SiO6 octahedra and faces with eight equivalent HgO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Si–O bond lengths are 1.83 Å. O2- is bonded in a distorted linear geometry to four equivalent Hg2+ and two equivalent Si4+ atoms.