Materials Data on SrGe3 by Materials Project
SrGe3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 12-coordinate geometry to twelve Ge atoms. There are a spread of Sr–Ge bond distances ranging from 3.35–3.61 Å. In the second Sr site, Sr is bonded in a 12-coordinate geometry to twelve Ge atoms. There are four shorter (3.30 Å) and eight longer (3.36 Å) Sr–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to four Sr and five Ge atoms. There are one shorter (2.55 Å) and four longer (2.81 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four Sr and five Ge atoms. There are one shorter (2.60 Å) and two longer (2.83 Å) Ge–Ge bond lengths.