Materials Data on KTlCl4 by Materials Project
KTlCl4 is Zircon-like structured and crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight equivalent Cl1- atoms. There are four shorter (3.28 Å) and four longer (3.37 Å) K–Cl bond lengths. Tl3+ is bonded in a tetrahedral geometry to four equivalent Cl1- atoms. All Tl–Cl bond lengths are 2.48 Å. Cl1- is bonded in a distorted trigonal planar geometry to two equivalent K1+ and one Tl3+ atom.