Materials Data on Er5(Sn3Rh)6 by Materials Project

Er5Rh6Sn17Sn crystallizes in the cubic F-43m space group. The structure is three-dimensional and consists of four 7440-31-5 molecules and one Er5Rh6Sn17 framework. In the Er5Rh6Sn17 framework, there are two inequivalent Er sites. In the first Er site, Er is bonded in a 12-coordinate geometry to six equivalent Rh and twelve equivalent Sn atoms. All Er–Rh bond lengths are 3.56 Å. All Er–Sn bond lengths are 3.46 Å. In the second Er site, Er is bonded in a 4-coordinate geometry to three equivalent Rh and ten Sn atoms. All Er–Rh bond lengths are 3.03 Å. There are a spread of Er–Sn bond distances ranging from 2.91–3.40 Å. Rh is bonded in a 9-coordinate geometry to three Er and six Sn atoms. There are four shorter (2.69 Å) and two longer (2.80 Å) Rh–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a tetrahedral geometry to four equivalent Er atoms. In the second Sn site, Sn is bonded in a distorted hexagonal planar geometry to three equivalent Er and three equivalent Rh atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to three Er and two equivalent Rh atoms.