(K)3KSn23 crystallizes in the cubic Pm-3n space group. The structure consists of six 7440-09-7 atoms inside a KSn23 framework. In the KSn23 framework, K(2) is bonded in a distorted body-centered cubic geometry to eight equivalent Sn(1) and twelve equivalent Sn(2) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted pentagonal planar geometry to one K(2), one Sn(1), and three equivalent Sn(2) atoms. In the second Sn site, Sn(3) is bonded to four equivalent Sn(2) atoms to form corner-sharing SnSn4 tetrahedra. In the third Sn site, Sn(2) is bonded to one K(2), one Sn(2), one Sn(3), and two equivalent Sn(1) atoms to form distorted SnKSn4 tetrahedra that share  a cornercorner with one Sn(3)Sn4 tetrahedra, corners with ten equivalent Sn(2)KSn4 tetrahedra, and edges with four equivalent Sn(2)KSn4 tetrahedra.
(K)3KSn23 crystallizes in the cubic Pm-3n space group. The structure consists of six 7440-09-7 atoms inside a KSn23 framework. In the KSn23 framework, K(2) is bonded in a distorted body-centered cubic geometry to eight equivalent Sn(1) and twelve equivalent Sn(2) atoms. All K(2)-Sn(1) bond lengths are 3.98 Å. All K(2)-Sn(2) bond lengths are 4.12 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted pentagonal planar geometry to one K(2), one Sn(1), and three equivalent Sn(2) atoms. The Sn(1)-Sn(1) bond length is 2.86 Å. All Sn(1)-Sn(2) bond lengths are 2.89 Å. In the second Sn site, Sn(3) is bonded to four equivalent Sn(2) atoms to form corner-sharing SnSn4 tetrahedra. All Sn(3)-Sn(2) bond lengths are 2.91 Å. In the third Sn site, Sn(2) is bonded to one K(2), one Sn(2), one Sn(3), and two equivalent Sn(1) atoms to form distorted SnKSn4 tetrahedra that share  a cornercorner with one Sn(3)Sn4 tetrahedra, corners with ten equivalent Sn(2)KSn4 tetrahedra, and edges with four equivalent Sn(2)KSn4 tetrahedra. The Sn(2)-Sn(2) bond length is 2.94 Å.