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Materials Data on Gd(NiAs)2 by Materials Project

Gd(NiAs)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Gd3+ is bonded in a distorted body-centered cubic geometry to eight equivalent As3- atoms. All Gd–As bond lengths are 3.14 Å. Ni+1.50+ is bonded to four equivalent As3- atoms to form a mixture of edge and corner-sharing NiAs4 tetrahedra. All Ni–As bond lengths are 2.36 Å. As3- is bonded in a 9-coordinate geometry to four equivalent Gd3+, four equivalent Ni+1.50+, and one As3- atom. The As–As bond length is 2.58 Å.

36 MATERIALS SCIENCE↗

Materials Data on GdNiAs by Materials Project

GdNiAs is hexagonal omega structure-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Gd is bonded to six equivalent Ni and six equivalent As atoms to form a mixture of edge and face-sharing GdNi6As6 cuboctahedra. All Gd–Ni bond lengths are 3.06 Å. All Gd–As bond lengths are 3.06 Å. Ni is bonded in a 3-coordinate geometry to six equivalent Gd and three equivalent As atoms. All Ni–As bond lengths are 2.36 Å. As is bonded in a 3-coordinate geometry to six equivalent Gd and three equivalent Ni atoms.

36 MATERIALS SCIENCE↗