Materials Data on RbLu3F10 by Materials Project
RbLu3F10 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 10-coordinate geometry to ten F1- atoms. There are a spread of Rb–F bond distances ranging from 2.99–3.25 Å. In the second Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are four shorter (2.98 Å) and four longer (3.01 Å) Rb–F bond lengths. There are two inequivalent Lu3+ sites. In the first Lu3+ site, Lu3+ is bonded to seven F1- atoms to form a mixture of edge and corner-sharing LuF7 pentagonal bipyramids. There are a spread of Lu–F bond distances ranging from 2.12–2.30 Å. In the second Lu3+ site, Lu3+ is bonded to seven F1- atoms to form a mixture of edge and corner-sharing LuF7 pentagonal bipyramids. There are a spread of Lu–F bond distances ranging from 2.14–2.41 Å. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a 3-coordinate geometry to three Lu3+ atoms. In the second F1- site, F1- is bonded in a linear geometry to two equivalent Lu3+ atoms. In the third F1- site, F1- is bonded in a linear geometry to two equivalent Lu3+ atoms. In the fourth F1- site, F1- is bonded in a 2-coordinate geometry to two Rb1+ and two equivalent Lu3+ atoms. In the fifth F1- site, F1- is bonded in a distorted linear geometry to one Rb1+ and two equivalent Lu3+ atoms. In the sixth F1- site, F1- is bonded in a distorted bent 120 degrees geometry to two Rb1+ and two Lu3+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two Lu3+ atoms.