Materials Data on Yb4Sb2O by Materials Project
Yb4Sb2O is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Yb2+ sites. In the first Yb2+ site, Yb2+ is bonded in a linear geometry to four equivalent Sb3- and two equivalent O2- atoms. All Yb–Sb bond lengths are 3.24 Å. Both Yb–O bond lengths are 2.32 Å. In the second Yb2+ site, Yb2+ is bonded to five equivalent Sb3- and one O2- atom to form a mixture of distorted edge and corner-sharing YbSb5O octahedra. The corner-sharing octahedra tilt angles range from 0–13°. There are one shorter (3.20 Å) and four longer (3.31 Å) Yb–Sb bond lengths. The Yb–O bond length is 2.64 Å. Sb3- is bonded in a 9-coordinate geometry to nine Yb2+ atoms. O2- is bonded to six Yb2+ atoms to form corner-sharing OYb6 octahedra. The corner-sharing octahedral tilt angles are 0°.