Materials Data on BaSiGe by Materials Project
BaGeSi crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Ba2+ is bonded to four equivalent Si4- atoms to form distorted corner-sharing BaSi4 tetrahedra. There are three shorter (3.43 Å) and one longer (3.54 Å) Ba–Si bond lengths. Ge2+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Ge–Si bond lengths are 2.53 Å. Si4- is bonded in a 7-coordinate geometry to four equivalent Ba2+ and three equivalent Ge2+ atoms.
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