Materials Data on EuCo2SiGe by Materials Project
EuCo2GeSi crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Eu is bonded in a 12-coordinate geometry to eight equivalent Co, four equivalent Ge, and four equivalent Si atoms. There are four shorter (3.19 Å) and four longer (3.28 Å) Eu–Co bond lengths. All Eu–Ge bond lengths are 3.11 Å. All Eu–Si bond lengths are 3.13 Å. Co is bonded in a 4-coordinate geometry to four equivalent Eu, two equivalent Ge, and two equivalent Si atoms. Both Co–Ge bond lengths are 2.35 Å. Both Co–Si bond lengths are 2.27 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Eu, four equivalent Co, and one Si atom. The Ge–Si bond length is 2.73 Å. Si is bonded in a 9-coordinate geometry to four equivalent Eu, four equivalent Co, and one Ge atom.