Materials Data on BaCaGe by Materials Project
BaCaGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are a spread of Ba–Ge bond distances ranging from 3.42–3.75 Å. Ca is bonded to four equivalent Ge atoms to form a mixture of distorted edge and corner-sharing CaGe4 tetrahedra. There are a spread of Ca–Ge bond distances ranging from 3.13–3.18 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Ba and four equivalent Ca atoms.
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