Materials Data on CsZr6MnI14 by Materials Project
CsZr6MnI14 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. Cs is bonded to twelve I atoms to form CsI12 cuboctahedra that share corners with eight equivalent ZrMnI5 octahedra and edges with four equivalent ZrMnI5 octahedra. The corner-sharing octahedra tilt angles range from 38–42°. There are a spread of Cs–I bond distances ranging from 4.03–4.43 Å. There are two inequivalent Zr sites. In the first Zr site, Zr is bonded in a 6-coordinate geometry to one Mn and five I atoms. The Zr–Mn bond length is 2.45 Å. There are four shorter (2.92 Å) and one longer (3.66 Å) Zr–I bond lengths. In the second Zr site, Zr is bonded to one Mn and five I atoms to form ZrMnI5 octahedra that share corners with two equivalent CsI12 cuboctahedra, corners with two equivalent ZrMnI5 octahedra, an edgeedge with one CsI12 cuboctahedra, and edges with two equivalent ZrMnI5 octahedra. The corner-sharing octahedra tilt angles range from 0–44°. The Zr–Mn bond length is 2.53 Å. There are a spread of Zr–I bond distances ranging from 2.91–3.22 Å. Mn is bonded in an octahedral geometry to six Zr atoms. There are five inequivalent I sites. In the first I site, I is bonded in a 2-coordinate geometry to one Cs and two Zr atoms. In the second I site, I is bonded in a 3-coordinate geometry to one Cs and two Zr atoms. In the third I site, I is bonded in a 2-coordinate geometry to one Cs and two equivalent Zr atoms. In the fourth I site, I is bonded in a distorted rectangular see-saw-like geometry to one Cs and three Zr atoms. In the fifth I site, I is bonded in a bent 150 degrees geometry to two equivalent Zr atoms.