Materials Data on Rb2ThF6 by Materials Project

Rb2ThF6 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Rb1+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are three shorter (2.81 Å) and six longer (3.03 Å) Rb–F bond lengths. Th4+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are three shorter (2.30 Å) and six longer (2.47 Å) Th–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded to two equivalent Rb1+ and two equivalent Th4+ atoms to form a mixture of distorted corner and edge-sharing FRb2Th2 tetrahedra. In the second F1- site, F1- is bonded in a 1-coordinate geometry to four equivalent Rb1+ and one Th4+ atom.