Materials Data on Cs2LaCl5 by Materials Project
Cs2LaCl5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Cs1+ is bonded in a 8-coordinate geometry to eight Cl1- atoms. There are a spread of Cs–Cl bond distances ranging from 3.48–3.78 Å. La3+ is bonded to seven Cl1- atoms to form distorted edge-sharing LaCl7 pentagonal bipyramids. There are a spread of La–Cl bond distances ranging from 2.81–2.95 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 1-coordinate geometry to four equivalent Cs1+ and one La3+ atom. In the second Cl1- site, Cl1- is bonded in a 2-coordinate geometry to two equivalent Cs1+ and two equivalent La3+ atoms. In the third Cl1- site, Cl1- is bonded in a 5-coordinate geometry to four equivalent Cs1+ and one La3+ atom. In the fourth Cl1- site, Cl1- is bonded in a 5-coordinate geometry to four equivalent Cs1+ and one La3+ atom.