Materials Data on EuSi2Ni by Materials Project
EuNiSi2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Eu is bonded in a 4-coordinate geometry to four equivalent Ni and ten Si atoms. All Eu–Ni bond lengths are 3.14 Å. There are a spread of Eu–Si bond distances ranging from 3.09–3.22 Å. Ni is bonded in a 9-coordinate geometry to four equivalent Eu and five Si atoms. There are a spread of Ni–Si bond distances ranging from 2.30–2.37 Å. There are two inequivalent Si sites. In the first Si site, Si is bonded in a 9-coordinate geometry to six equivalent Eu, one Ni, and two equivalent Si atoms. Both Si–Si bond lengths are 2.44 Å. In the second Si site, Si is bonded in a 8-coordinate geometry to four equivalent Eu and four equivalent Ni atoms.
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