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La3Sn is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. La is bonded in a distorted square co-planar geometry to four equivalent Sn atoms. All La–Sn bond lengths are 3.57 Å. Sn is bonded to twelve equivalent La atoms to form a mixture of corner and face-sharing SnLa12 cuboctahedra.
La5Sn3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 4-coordinate geometry to four equivalent Sn atoms. All La–Sn bond lengths are 3.31 Å. In the second La site, La is bonded in a 6-coordinate geometry to six Sn atoms. There are a spread of La–Sn bond distances ranging from 3.35–3.68 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to eight equivalent La and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.18 Å. In the second Sn site, Sn is bonded in a 10-coordinate geometry to ten La atoms.
LaSn3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. La is bonded to twelve equivalent Sn atoms to form a mixture of corner and face-sharing LaSn12 cuboctahedra. All La–Sn bond lengths are 3.41 Å. Sn is bonded in a distorted square co-planar geometry to four equivalent La atoms.
La3Sn4 is Magnesium tetraboride-like structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 8-coordinate geometry to eight Sn atoms. There are a spread of La–Sn bond distances ranging from 3.35–3.46 Å. In the second La site, La is bonded in a 5-coordinate geometry to seven Sn atoms. There are a spread of La–Sn bond distances ranging from 3.24–3.59 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent La and four equivalent Sn atoms. All Sn–Sn bond lengths are 3.18 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six La and three Sn atoms. The Sn–Sn bond length is 2.96 Å. In the third Sn site, Sn is bonded in a 9-coordinate geometry to seven La and two equivalent Sn atoms.
LaSn crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. La is bonded in a 5-coordinate geometry to seven equivalent Sn atoms. There are a spread of La–Sn bond distances ranging from 3.33–3.61 Å. Sn is bonded in a 5-coordinate geometry to seven equivalent La and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.04 Å.