Materials Data on Tb2Tl by Materials Project

Tb2Tl crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a 6-coordinate geometry to eight Tb and six equivalent Tl atoms. There are two shorter (3.38 Å) and six longer (3.57 Å) Tb–Tb bond lengths. All Tb–Tl bond lengths are 3.57 Å. In the second Tb site, Tb is bonded to six equivalent Tb and five equivalent Tl atoms to form a mixture of distorted face and corner-sharing TbTb6Tl5 trigonal bipyramids. There are three shorter (3.14 Å) and two longer (3.38 Å) Tb–Tl bond lengths. Tl is bonded in a 11-coordinate geometry to eleven Tb atoms.