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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LaAgGe by Materials Project

LaAgGe crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. La is bonded to six equivalent Ag and six equivalent Ge atoms to form a mixture of distorted edge and face-sharing LaAg6Ge6 cuboctahedra. There are three shorter (3.26 Å) and three longer (3.39 Å) La–Ag bond lengths. There are three shorter (3.17 Å) and three longer (3.50 Å) La–Ge bond lengths. Ag is bonded in a 9-coordinate geometry to six equivalent La and three equivalent Ge atoms. All Ag–Ge bond lengths are 2.69 Å. Ge is bonded in a 9-coordinate geometry to six equivalent La and three equivalent Ag atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La(AgGe)2 by Materials Project

La(AgGe)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. La is bonded in a 8-coordinate geometry to eight equivalent Ag and eight equivalent Ge atoms. All La–Ag bond lengths are 3.53 Å. All La–Ge bond lengths are 3.35 Å. Ag is bonded in a 12-coordinate geometry to four equivalent La, four equivalent Ag, and four equivalent Ge atoms. All Ag–Ag bond lengths are 3.11 Å. All Ag–Ge bond lengths are 2.68 Å. Ge is bonded in a 9-coordinate geometry to four equivalent La, four equivalent Ag, and one Ge atom. The Ge–Ge bond length is 2.48 Å.

36 MATERIALS SCIENCE↗