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Materials Data on LaGe2 by Materials Project

LaGe2 is hexagonal omega structure-like structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. La is bonded to twelve Ge atoms to form a mixture of edge and face-sharing LaGe12 cuboctahedra. There are a spread of La–Ge bond distances ranging from 3.31–3.42 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent La and three Ge atoms. There are two shorter (2.55 Å) and one longer (2.56 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent La and three Ge atoms. Both Ge–Ge bond lengths are 2.55 Å.

36 MATERIALS SCIENCE↗

Materials Data on LaGe by Materials Project

LaGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. La is bonded in a 7-coordinate geometry to seven equivalent Ge atoms. There are a spread of La–Ge bond distances ranging from 3.17–3.40 Å. Ge is bonded in a 9-coordinate geometry to seven equivalent La and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.71 Å.

36 MATERIALS SCIENCE↗

Materials Data on LaGe5 by Materials Project

LaGe5 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. La is bonded in a 10-coordinate geometry to fourteen Ge atoms. There are a spread of La–Ge bond distances ranging from 3.17–3.54 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to three equivalent La and five Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.57–2.96 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent La and eight equivalent Ge atoms.

36 MATERIALS SCIENCE↗