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Materials Data on LaCN2Cl by Materials Project

LaCN2Cl crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. La3+ is bonded in a 9-coordinate geometry to five N3- and four equivalent Cl1- atoms. There are a spread of La–N bond distances ranging from 2.56–2.67 Å. There are a spread of La–Cl bond distances ranging from 3.06–3.21 Å. C4+ is bonded in a linear geometry to two N3- atoms. There is one shorter (1.22 Å) and one longer (1.25 Å) C–N bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a 1-coordinate geometry to two equivalent La3+ and one C4+ atom. In the second N3- site, N3- is bonded in a distorted single-bond geometry to three equivalent La3+ and one C4+ atom. Cl1- is bonded in a 4-coordinate geometry to four equivalent La3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on La2CN3Cl by Materials Project

La2CN3Cl crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 2-coordinate geometry to four N3- and four equivalent Cl1- atoms. There are two shorter (2.35 Å) and two longer (2.64 Å) La–N bond lengths. All La–Cl bond lengths are 3.29 Å. In the second La3+ site, La3+ is bonded in a 7-coordinate geometry to six N3- and one Cl1- atom. There are two shorter (2.39 Å) and four longer (2.64 Å) La–N bond lengths. The La–Cl bond length is 3.24 Å. C4+ is bonded in a linear geometry to two equivalent N3- atoms. Both C–N bond lengths are 1.24 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to four La3+ atoms to form a mixture of corner and edge-sharing NLa4 tetrahedra. In the second N3- site, N3- is bonded in a 4-coordinate geometry to three La3+ and one C4+ atom. Cl1- is bonded in a 5-coordinate geometry to five La3+ atoms.

36 MATERIALS SCIENCE↗