Materials Data on Re3Ge7 by Materials Project
Re3Ge7 is Magnesium tetraboride-like structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Re sites. In the first Re site, Re is bonded in a 9-coordinate geometry to nine Ge atoms. There are a spread of Re–Ge bond distances ranging from 2.57–2.90 Å. In the second Re site, Re is bonded in a 8-coordinate geometry to eight Ge atoms. There are a spread of Re–Ge bond distances ranging from 2.54–2.68 Å. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a 3-coordinate geometry to three equivalent Re and four equivalent Ge atoms. All Ge–Ge bond lengths are 3.05 Å. In the second Ge site, Ge is bonded in a 5-coordinate geometry to five equivalent Re atoms. In the third Ge site, Ge is bonded in a 4-coordinate geometry to three Re and three equivalent Ge atoms. There are one shorter (2.49 Å) and two longer (2.76 Å) Ge–Ge bond lengths. In the fourth Ge site, Ge is bonded in a 3-coordinate geometry to three Re and five Ge atoms.