Materials Data on GdCuSi by Materials Project
GdCuSi crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Gd3+ is bonded to six equivalent Si4- atoms to form a mixture of face, edge, and corner-sharing GdSi6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Gd–Si bond lengths are 3.07 Å. Cu1+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Cu–Si bond lengths are 2.41 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Gd3+ and three equivalent Cu1+ atoms.
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