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DOE OSTI · 1722064

Materials Data on EuSiPt2 by Materials Project

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Abstract

EuPt2Si crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two EuPt2Si sheets oriented in the (0, 1, 0) direction. Eu2+ is bonded in a 4-coordinate geometry to four equivalent Si4- atoms. All Eu–Si bond lengths are 3.26 Å. There are two inequivalent Pt1+ sites. In the first Pt1+ site, Pt1+ is bonded in a single-bond geometry to one Si4- atom. The Pt–Si bond length is 2.35 Å. In the second Pt1+ site, Pt1+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing PtSi4 tetrahedra. There are two shorter (2.46 Å) and two longer (2.50 Å) Pt–Si bond lengths. Si4- is bonded in a 9-coordinate geometry to four equivalent Eu2+ and five Pt1+ atoms.

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36 MATERIALS SCIENCEcrystal structureEu-Pt-SiEuSiPt2

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2019-01-12. Materials Data on EuSiPt2 by Materials Project. https://doi.org/10.17188/1722064

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