Materials Data on La3TiCl5O4 by Materials Project

Abstract

La3TiO4Cl5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a distorted bent 120 degrees geometry to two equivalent O2- and seven Cl1- atoms. Both La–O bond lengths are 2.31 Å. There are a spread of La–Cl bond distances ranging from 3.03–3.45 Å. In the second La3+ site, La3+ is bonded in a 2-coordinate geometry to two equivalent O2- and seven Cl1- atoms. Both La–O bond lengths are 2.29 Å. There are a spread of La–Cl bond distances ranging from 3.00–3.29 Å. In the third La3+ site, La3+ is bonded in a 2-coordinate geometry to two equivalent O2- and seven Cl1- atoms. Both La–O bond lengths are 2.28 Å. There are a spread of La–Cl bond distances ranging from 2.99–3.30 Å. Ti4+ is bonded to five O2- atoms to form corner-sharing TiO5 trigonal bipyramids. There is three shorter (1.85 Å) and two longer (2.04 Å) Ti–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two equivalent La3+, one Ti4+, and one Cl1- atom. The O–Cl bond length is 3.30 Å. In the second O2- site, O2- is bonded in a trigonal planar geometry to two equivalent La3+ and one Ti4+ atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to two equivalent La3+, one Ti4+, and one Cl1- atom. The O–Cl bond length is 3.24 Å. In the fourth O2- site, O2- is bonded in a distorted linear geometry to two equivalent Ti4+ atoms. There are five inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 4-coordinate geometry to four La3+ atoms. In the second Cl1- site, Cl1- is bonded in a 4-coordinate geometry to four La3+ and two equivalent Cl1- atoms. Both Cl–Cl bond lengths are 3.37 Å. In the third Cl1- site, Cl1- is bonded in a 5-coordinate geometry to five La3+, two O2-, and six Cl1- atoms. There are two shorter (3.49 Å) and two longer (3.51 Å) Cl–Cl bond lengths. In the fourth Cl1- site, Cl1- is bonded in a 4-coordinate geometry to four La3+ and two equivalent Cl1- atoms. In the fifth Cl1- site, Cl1- is bonded in a 4-coordinate geometry to four La3+ and two equivalent Cl1- atoms.