Materials Data on CuSiO3 by Materials Project

Abstract

CuSiO3 crystallizes in the orthorhombic Pmma space group. The structure is two-dimensional and consists of one CuSiO3 sheet oriented in the (0, 1, 0) direction. Cu2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.93 Å. Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There is two shorter (1.64 Å) and two longer (1.67 Å) Si–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Si4+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Cu2+ and one Si4+ atom.