Materials Data on LaSn2 by Materials Project
LaSn2 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. La is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of La–Sn bond distances ranging from 3.26–3.63 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a distorted square co-planar geometry to four equivalent La atoms. In the second Sn site, Sn is bonded in a distorted square co-planar geometry to four equivalent La atoms. In the third Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent La and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.30 Å.
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