Materials Data on CsSb2F11 by Materials Project
CsSb2F11 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cs1+ is bonded in a 12-coordinate geometry to twelve F1- atoms. There are a spread of Cs–F bond distances ranging from 3.13–3.65 Å. There are two inequivalent Sb5+ sites. In the first Sb5+ site, Sb5+ is bonded to six F1- atoms to form corner-sharing SbF6 octahedra. The corner-sharing octahedral tilt angles are 35°. There are a spread of Sb–F bond distances ranging from 1.90–2.09 Å. In the second Sb5+ site, Sb5+ is bonded to six F1- atoms to form corner-sharing SbF6 octahedra. The corner-sharing octahedral tilt angles are 35°. There are a spread of Sb–F bond distances ranging from 1.89–2.09 Å. There are eleven inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Cs1+ and one Sb5+ atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one Cs1+ and one Sb5+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Cs1+ and one Sb5+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Cs1+ and one Sb5+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one Cs1+ and one Sb5+ atom. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two Sb5+ atoms. In the seventh F1- site, F1- is bonded in a distorted single-bond geometry to one Cs1+ and one Sb5+ atom. In the eighth F1- site, F1- is bonded in a single-bond geometry to one Cs1+ and one Sb5+ atom. In the ninth F1- site, F1- is bonded in a single-bond geometry to two equivalent Cs1+ and one Sb5+ atom. In the tenth F1- site, F1- is bonded in a single-bond geometry to two equivalent Cs1+ and one Sb5+ atom. In the eleventh F1- site, F1- is bonded in a distorted single-bond geometry to one Cs1+ and one Sb5+ atom.