Materials Data on NdNiAs by Materials Project
NdNiAs crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Nd2+ is bonded to six equivalent As3- atoms to form a mixture of distorted edge, face, and corner-sharing NdAs6 pentagonal pyramids. All Nd–As bond lengths are 3.13 Å. Ni1+ is bonded in a trigonal planar geometry to three equivalent As3- atoms. All Ni–As bond lengths are 2.39 Å. As3- is bonded in a 3-coordinate geometry to six equivalent Nd2+ and three equivalent Ni1+ atoms.
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