K9NaTl13 crystallizes in the trigonal R-3 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a distorted hexagonal planar geometry to two equivalent Tl(2) and four equivalent Tl(1) atoms. In the second K site, K(2) is bonded in a 1-coordinate geometry to one Tl(2) atom. Na(1) is bonded in a distorted hexagonal planar geometry to six equivalent Tl(2) atoms. There are three inequivalent Tl sites. In the first Tl site, Tl(2) is bonded in a 3-coordinate geometry to one K(1), one K(2), one Na(1), and one Tl(3) atom. In the second Tl site, Tl(3) is bonded in a cuboctahedral geometry to six equivalent Tl(1) and six equivalent Tl(2) atoms. In the third Tl site, Tl(1) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1) and one Tl(3) atom.
K9NaTl13 crystallizes in the trigonal R-3 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a distorted hexagonal planar geometry to two equivalent Tl(2) and four equivalent Tl(1) atoms. Both K(1)-Tl(2) bond lengths are 3.49 Å. There are two shorter (3.44 Å) and two longer (3.45 Å) K(1)-Tl(1) bond lengths. In the second K site, K(2) is bonded in a 1-coordinate geometry to one Tl(2) atom. The K(2)-Tl(2) bond length is 3.92 Å. Na(1) is bonded in a distorted hexagonal planar geometry to six equivalent Tl(2) atoms. All Na(1)-Tl(2) bond lengths are 3.26 Å. There are three inequivalent Tl sites. In the first Tl site, Tl(2) is bonded in a 3-coordinate geometry to one K(1), one K(2), one Na(1), and one Tl(3) atom. The Tl(2)-Tl(3) bond length is 3.38 Å. In the second Tl site, Tl(3) is bonded in a cuboctahedral geometry to six equivalent Tl(1) and six equivalent Tl(2) atoms. All Tl(3)-Tl(1) bond lengths are 3.28 Å. In the third Tl site, Tl(1) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1) and one Tl(3) atom.