La3Cl crystallizes in the tetragonal I4/mmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 4-coordinate geometry to four equivalent Cl(1) atoms. In the second La site, La(2) is bonded in a square co-planar geometry to four equivalent Cl(1) atoms. Cl(1) is bonded to four equivalent La(2) and eight equivalent La(1) atoms to form a mixture of corner, face, and edge-sharing ClLa12 cuboctahedra.
La3Cl crystallizes in the tetragonal I4/mmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 4-coordinate geometry to four equivalent Cl(1) atoms. All La(1)-Cl(1) bond lengths are 3.64 Å. In the second La site, La(2) is bonded in a square co-planar geometry to four equivalent Cl(1) atoms. All La(2)-Cl(1) bond lengths are 3.40 Å. Cl(1) is bonded to four equivalent La(2) and eight equivalent La(1) atoms to form a mixture of corner, face, and edge-sharing ClLa12 cuboctahedra.