Materials Data on RbCuO by Materials Project
RbCuO crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Rb1+ is bonded in a rectangular see-saw-like geometry to four equivalent O2- atoms. There are two shorter (2.89 Å) and two longer (2.96 Å) Rb–O bond lengths. Cu1+ is bonded in a linear geometry to two equivalent O2- atoms. Both Cu–O bond lengths are 1.84 Å. O2- is bonded to four equivalent Rb1+ and two equivalent Cu1+ atoms to form a mixture of distorted edge and corner-sharing ORb4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–12°.