Materials Data on LuZnSn2 by Materials Project
LuZnSn2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Lu is bonded to four equivalent Zn and eight Sn atoms to form a mixture of edge, corner, and face-sharing LuZn4Sn8 cuboctahedra. All Lu–Zn bond lengths are 3.26 Å. There are four shorter (3.12 Å) and four longer (3.25 Å) Lu–Sn bond lengths. Zn is bonded in a 12-coordinate geometry to four equivalent Lu, four equivalent Zn, and four equivalent Sn atoms. All Zn–Zn bond lengths are 3.06 Å. All Zn–Sn bond lengths are 2.85 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to four equivalent Lu and four equivalent Sn atoms. All Sn–Sn bond lengths are 3.06 Å. In the second Sn site, Sn is bonded in a 8-coordinate geometry to four equivalent Lu and four equivalent Zn atoms.