Materials Data on KTl by Materials Project

KTl crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. there are three inequivalent K sites. In the first K site, K is bonded in a 4-coordinate geometry to four equivalent Tl atoms. There are two shorter (3.75 Å) and two longer (3.81 Å) K–Tl bond lengths. In the second K site, K is bonded in a 6-coordinate geometry to six Tl atoms. There are a spread of K–Tl bond distances ranging from 3.71–3.93 Å. In the third K site, K is bonded in a 6-coordinate geometry to six Tl atoms. There are a spread of K–Tl bond distances ranging from 3.70–4.06 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 8-coordinate geometry to four K and four equivalent Tl atoms. There are two shorter (3.15 Å) and two longer (3.17 Å) Tl–Tl bond lengths. In the second Tl site, Tl is bonded in a 8-coordinate geometry to six K and two equivalent Tl atoms.