Materials Data on Rb2UF7 by Materials Project
Rb2UF7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 1-coordinate geometry to eight F1- atoms. There are a spread of Rb–F bond distances ranging from 2.54–3.28 Å. In the second Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Rb–F bond distances ranging from 2.61–3.24 Å. U5+ is bonded in an octahedral geometry to six F1- atoms. There are a spread of U–F bond distances ranging from 2.08–2.11 Å. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to two Rb1+ and one U5+ atom. In the second F1- site, F1- is bonded in a 1-coordinate geometry to one Rb1+ and one U5+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to three Rb1+ and one U5+ atom. In the fourth F1- site, F1- is bonded in a distorted single-bond geometry to one Rb1+ and one U5+ atom. In the fifth F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one U5+ atom. In the sixth F1- site, F1- is bonded in a distorted trigonal planar geometry to three Rb1+ atoms. In the seventh F1- site, F1- is bonded in a distorted single-bond geometry to two Rb1+ and one U5+ atom.