Materials Data on Ba7Ge6 by Materials Project
Ba7Ge6 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are four inequivalent Ba sites. In the first Ba site, Ba is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Ba–Ge bond distances ranging from 3.39–3.53 Å. In the second Ba site, Ba is bonded in a 6-coordinate geometry to seven Ge atoms. There are a spread of Ba–Ge bond distances ranging from 3.52–4.08 Å. In the third Ba site, Ba is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Ba–Ge bond distances ranging from 3.42–3.81 Å. In the fourth Ba site, Ba is bonded in a 3-coordinate geometry to five Ge atoms. There are a spread of Ba–Ge bond distances ranging from 3.29–3.90 Å. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to eight Ba and one Ge atom. The Ge–Ge bond length is 2.63 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to seven Ba and one Ge atom. The Ge–Ge bond length is 2.54 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to eight Ba and one Ge atom. In the fourth Ge site, Ge is bonded in a 9-coordinate geometry to seven Ba and two Ge atoms. The Ge–Ge bond length is 2.60 Å.