Materials Data on Eu2Ge by Materials Project
Eu2Ge is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Eu sites. In the first Eu site, Eu is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are a spread of Eu–Ge bond distances ranging from 3.16–3.69 Å. In the second Eu site, Eu is bonded to four equivalent Ge atoms to form a mixture of edge and corner-sharing EuGe4 tetrahedra. There are a spread of Eu–Ge bond distances ranging from 3.07–3.14 Å. Ge is bonded in a 9-coordinate geometry to nine Eu atoms.
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