Materials Data on Ce2Si2Sn by Materials Project
Ce2SnSi2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ce3+ is bonded in a distorted hexagonal planar geometry to six equivalent Si4- atoms. There are two shorter (3.05 Å) and four longer (3.09 Å) Ce–Si bond lengths. Sn2+ is bonded in a square co-planar geometry to four equivalent Si4- atoms. All Sn–Si bond lengths are 2.91 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Ce3+, two equivalent Sn2+, and one Si4- atom. The Si–Si bond length is 2.37 Å.
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