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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PrGe2 by Materials Project

PrGe2 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Pr is bonded to twelve equivalent Ge atoms to form a mixture of edge and face-sharing PrGe12 cuboctahedra. There are eight shorter (3.24 Å) and four longer (3.47 Å) Pr–Ge bond lengths. Ge is bonded in a 9-coordinate geometry to six equivalent Pr and three equivalent Ge atoms. There are two shorter (2.56 Å) and one longer (2.60 Å) Ge–Ge bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PrGe2 by Materials Project

PrGe2 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Pr is bonded to twelve Ge atoms to form a mixture of face and edge-sharing PrGe12 cuboctahedra. There are a spread of Pr–Ge bond distances ranging from 3.21–3.47 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Pr and three Ge atoms. There are two shorter (2.57 Å) and one longer (2.59 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Pr and three Ge atoms. Both Ge–Ge bond lengths are 2.52 Å.

36 MATERIALS SCIENCE↗