Materials Data on CsMn4Cl9 by Materials Project
CsMn4Cl9 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with sixteen equivalent MnCl6 octahedra, edges with four equivalent CsCl12 cuboctahedra, and faces with four equivalent MnCl6 octahedra. The corner-sharing octahedra tilt angles range from 43–46°. There are a spread of Cs–Cl bond distances ranging from 3.80–3.86 Å. Mn2+ is bonded to six Cl1- atoms to form MnCl6 octahedra that share corners with four equivalent CsCl12 cuboctahedra, a cornercorner with one MnCl6 octahedra, edges with five equivalent MnCl6 octahedra, and a faceface with one CsCl12 cuboctahedra. The corner-sharing octahedral tilt angles are 3°. There are a spread of Mn–Cl bond distances ranging from 2.46–2.73 Å. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted L-shaped geometry to two equivalent Cs1+ and two equivalent Mn2+ atoms. In the second Cl1- site, Cl1- is bonded in a 3-coordinate geometry to one Cs1+ and three equivalent Mn2+ atoms. In the third Cl1- site, Cl1- is bonded in a rectangular see-saw-like geometry to four equivalent Mn2+ atoms.