Materials Data on KSn2Cl5 by Materials Project
KSn2Cl5 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. K1+ is bonded in a 10-coordinate geometry to ten Cl1- atoms. There are eight shorter (3.45 Å) and two longer (3.60 Å) K–Cl bond lengths. Sn2+ is bonded in a 4-coordinate geometry to four Cl1- atoms. There are two shorter (2.61 Å) and two longer (2.99 Å) Sn–Cl bond lengths. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded to two equivalent K1+ and four equivalent Sn2+ atoms to form distorted corner-sharing ClK2Sn4 octahedra. The corner-sharing octahedra tilt angles range from 0–34°. In the second Cl1- site, Cl1- is bonded in a distorted trigonal non-coplanar geometry to two equivalent K1+ and one Sn2+ atom.
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