Materials Data on Cs7Cd3Br13 by Materials Project
Cs7Cd3Br13 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are eleven inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.70–4.03 Å. In the second Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.55–3.83 Å. In the third Cs1+ site, Cs1+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.70–4.03 Å. In the fourth Cs1+ site, Cs1+ is bonded in a distorted body-centered cubic geometry to eight equivalent Br1- atoms. All Cs–Br bond lengths are 4.07 Å. In the fifth Cs1+ site, Cs1+ is bonded in a distorted body-centered cubic geometry to eight equivalent Br1- atoms. All Cs–Br bond lengths are 4.07 Å. In the sixth Cs1+ site, Cs1+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.70–4.03 Å. In the seventh Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.55–3.83 Å. In the eighth Cs1+ site, Cs1+ is bonded in a 9-coordinate geometry to nine Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.70–4.03 Å. In the ninth Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of Cs–Br bond distances ranging from 3.55–3.83 Å. In the tenth Cs1+ site, Cs1+ is bonded in a distorted body-centered cubic geometry to eight equivalent Br1- atoms. All Cs–Br bond lengths are 4.07 Å. In the eleventh Cs1+ site, Cs1+ is bonded in a distorted body-centered cubic geometry to eight equivalent Br1- atoms. All Cs–Br bond lengths are 4.07 Å. There are five inequivalent Cd2+ sites. In the first Cd2+ site, Cd2+ is bonded in a tetrahedral geometry to four Br1- atoms. There are two shorter (2.61 Å) and two longer (2.62 Å) Cd–Br bond lengths. In the second Cd2+ site, Cd2+ is bonded in a tetrahedral geometry to four Br1- atoms. There are two shorter (2.61 Å) and two longer (2.62 Å) Cd–Br bond lengths. In the third Cd2+ site, Cd2+ is bonded in a tetrahedral geometry to four Br1- atoms. There are two shorter (2.61 Å) and two longer (2.62 Å) Cd–Br bond lengths. In the fourth Cd2+ site, Cd2+ is bonded in a tetrahedral geometry to four Br1- atoms. There are two shorter (2.61 Å) and two longer (2.62 Å) Cd–Br bond lengths. In the fifth Cd2+ site, Cd2+ is bonded to six Br1- atoms to form corner-sharing CdBr6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Cd–Br bond lengths are 2.85 Å. There are four inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted single-bond geometry to five Cs1+ and one Cd2+ atom. In the second Br1- site, Br1- is bonded to five Cs1+ and one Cd2+ atom to form a mixture of distorted corner, edge, and face-sharing BrCs5Cd octahedra. The corner-sharing octahedra tilt angles range from 0–52°. In the third Br1- site, Br1- is bonded in a 5-coordinate geometry to four Cs1+ and one Cd2+ atom. In the fourth Br1- site, Br1- is bonded to four Cs1+ and two equivalent Cd2+ atoms to form BrCs4Cd2 octahedra that share corners with two equivalent BrCs4Cd2 octahedra and faces with eight equivalent BrCs5Cd octahedra. The corner-sharing octahedral tilt angles are 0°.