Sr(GaGe) crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing SrGe6 octahedra. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to six equivalent Ga(1) atoms. Ga(1) is bonded in a 6-coordinate geometry to three equivalent Sr(2) and three equivalent Ge(1) atoms. Ge(1) is bonded in a 6-coordinate geometry to three equivalent Sr(1) and three equivalent Ga(1) atoms.
Sr(GaGe) crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing SrGe6 octahedra. All Sr(1)-Ge(1) bond lengths are 3.26 Å. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to six equivalent Ga(1) atoms. All Sr(2)-Ga(1) bond lengths are 3.19 Å. Ga(1) is bonded in a 6-coordinate geometry to three equivalent Sr(2) and three equivalent Ge(1) atoms. All Ga(1)-Ge(1) bond lengths are 2.52 Å. Ge(1) is bonded in a 6-coordinate geometry to three equivalent Sr(1) and three equivalent Ga(1) atoms.