Materials Data on CeSiPt3 by Materials Project
CePt3Si crystallizes in the tetragonal P4mm space group. The structure is two-dimensional and consists of one CePt3Si sheet oriented in the (0, 0, 1) direction. Ce3+ is bonded in a 4-coordinate geometry to four equivalent Si4- atoms. All Ce–Si bond lengths are 3.26 Å. There are two inequivalent Pt+0.33+ sites. In the first Pt+0.33+ site, Pt+0.33+ is bonded in a bent 120 degrees geometry to two equivalent Si4- atoms. Both Pt–Si bond lengths are 2.41 Å. In the second Pt+0.33+ site, Pt+0.33+ is bonded in a single-bond geometry to one Si4- atom. The Pt–Si bond length is 2.31 Å. Si4- is bonded in a 5-coordinate geometry to four equivalent Ce3+ and five Pt+0.33+ atoms.
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