Materials Data on CaNiGeH by Materials Project
CaNiGeH crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ca is bonded in a 4-coordinate geometry to four equivalent Ge and four equivalent H atoms. All Ca–Ge bond lengths are 3.21 Å. All Ca–H bond lengths are 2.33 Å. Ni is bonded to four equivalent Ge atoms to form a mixture of distorted edge and corner-sharing NiGe4 tetrahedra. All Ni–Ge bond lengths are 2.35 Å. Ge is bonded in a 8-coordinate geometry to four equivalent Ca and four equivalent Ni atoms. H is bonded to four equivalent Ca atoms to form a mixture of edge and corner-sharing HCa4 tetrahedra.
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