Materials Data on PrBrCl2 by Materials Project
PrBrCl2 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are two inequivalent Pr3+ sites. In the first Pr3+ site, Pr3+ is bonded in a 9-coordinate geometry to two Br1- and seven Cl1- atoms. There are one shorter (3.11 Å) and one longer (3.15 Å) Pr–Br bond lengths. There are a spread of Pr–Cl bond distances ranging from 2.92–3.01 Å. In the second Pr3+ site, Pr3+ is bonded in a 9-coordinate geometry to four Br1- and five Cl1- atoms. There are two shorter (3.05 Å) and two longer (3.07 Å) Pr–Br bond lengths. There are a spread of Pr–Cl bond distances ranging from 2.93–3.15 Å. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to three Pr3+ atoms. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to three Pr3+ atoms. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a trigonal non-coplanar geometry to three Pr3+ atoms. In the second Cl1- site, Cl1- is bonded in a distorted trigonal non-coplanar geometry to three Pr3+ atoms. In the third Cl1- site, Cl1- is bonded in a distorted trigonal non-coplanar geometry to three Pr3+ atoms. In the fourth Cl1- site, Cl1- is bonded in a distorted trigonal non-coplanar geometry to three Pr3+ atoms.