Materials Data on EuSiAg by Materials Project
EuAgSi crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Eu3+ is bonded to six equivalent Si4- atoms to form a mixture of distorted corner, edge, and face-sharing EuSi6 pentagonal pyramids. There are four shorter (3.33 Å) and two longer (3.34 Å) Eu–Si bond lengths. Ag1+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Ag–Si bond lengths are 2.54 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Eu3+ and three equivalent Ag1+ atoms.
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