Materials Data on Cs3Sb2Cl9 by Materials Project

Abstract

Cs3Sb2Cl9 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with twelve CsCl12 cuboctahedra, faces with six CsCl12 cuboctahedra, and faces with five SbCl6 octahedra. There are a spread of Cs–Cl bond distances ranging from 3.72–4.01 Å. In the second Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with nine CsCl12 cuboctahedra, corners with two equivalent SbCl6 octahedra, faces with seven CsCl12 cuboctahedra, and faces with four SbCl6 octahedra. The corner-sharing octahedral tilt angles are 23°. There are a spread of Cs–Cl bond distances ranging from 3.70–3.93 Å. In the third Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with nine CsCl12 cuboctahedra, a cornercorner with one SbCl6 octahedra, faces with seven CsCl12 cuboctahedra, and faces with six SbCl6 octahedra. The corner-sharing octahedral tilt angles are 19°. There are a spread of Cs–Cl bond distances ranging from 3.80–4.04 Å. There are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded to six Cl1- atoms to form SbCl6 octahedra that share corners with three CsCl12 cuboctahedra, corners with three equivalent SbCl6 octahedra, and faces with seven CsCl12 cuboctahedra. The corner-sharing octahedra tilt angles range from 2–4°. There are a spread of Sb–Cl bond distances ranging from 2.54–2.87 Å. In the second Sb3+ site, Sb3+ is bonded to six Cl1- atoms to form SbCl6 octahedra that share corners with three equivalent SbCl6 octahedra and faces with eight CsCl12 cuboctahedra. The corner-sharing octahedra tilt angles range from 2–4°. There are a spread of Sb–Cl bond distances ranging from 2.49–2.94 Å. There are six inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Sb3+ atom. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Sb3+ atom. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Sb3+ atom. In the fourth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Sb3+ atom. In the fifth Cl1- site, Cl1- is bonded to four Cs1+ and two Sb3+ atoms to form a mixture of distorted edge and corner-sharing ClCs4Sb2 octahedra. The corner-sharing octahedral tilt angles are 4°. In the sixth Cl1- site, Cl1- is bonded in a 6-coordinate geometry to four Cs1+ and two Sb3+ atoms.