Materials Data on Sr2Ge2Pb by Materials Project

Sr2PbGe2 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Sr is bonded in a 10-coordinate geometry to four equivalent Pb and six equivalent Ge atoms. All Sr–Pb bond lengths are 3.72 Å. There are four shorter (3.31 Å) and two longer (3.41 Å) Sr–Ge bond lengths. Pb is bonded in a distorted q6 geometry to eight equivalent Sr and two equivalent Ge atoms. Both Pb–Ge bond lengths are 3.13 Å. Ge is bonded in a 9-coordinate geometry to six equivalent Sr, one Pb, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.57 Å.