Materials Data on SrSiGe by Materials Project
SrGeSi crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Sr2+ is bonded to six equivalent Si4- atoms to form a mixture of distorted corner, edge, and face-sharing SrSi6 pentagonal pyramids. All Sr–Si bond lengths are 3.38 Å. Ge2+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Ge–Si bond lengths are 2.50 Å. Si4- is bonded in a 3-coordinate geometry to six equivalent Sr2+ and three equivalent Ge2+ atoms.
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