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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PmNd3 by Materials Project

PmNd3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pm is bonded to twelve equivalent Nd atoms to form PmNd12 cuboctahedra that share corners with twelve equivalent PmNd12 cuboctahedra, edges with twenty-four equivalent NdPm4Nd8 cuboctahedra, faces with six equivalent PmNd12 cuboctahedra, and faces with twelve equivalent NdPm4Nd8 cuboctahedra. All Pm–Nd bond lengths are 3.68 Å. Nd is bonded to four equivalent Pm and eight equivalent Nd atoms to form NdPm4Nd8 cuboctahedra that share corners with twelve equivalent NdPm4Nd8 cuboctahedra, edges with eight equivalent PmNd12 cuboctahedra, edges with sixteen equivalent NdPm4Nd8 cuboctahedra, faces with four equivalent PmNd12 cuboctahedra, and faces with fourteen equivalent NdPm4Nd8 cuboctahedra. All Nd–Nd bond lengths are 3.68 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmNd3 by Materials Project

PmNd3 is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pm is bonded to twelve Nd atoms to form PmNd12 cuboctahedra that share corners with four equivalent PmNd12 cuboctahedra, corners with eight equivalent NdPm4Nd8 cuboctahedra, edges with eight equivalent PmNd12 cuboctahedra, edges with sixteen equivalent NdPm4Nd8 cuboctahedra, faces with four equivalent PmNd12 cuboctahedra, and faces with fourteen NdPm4Nd8 cuboctahedra. There are four shorter (3.67 Å) and eight longer (3.69 Å) Pm–Nd bond lengths. There are two inequivalent Nd sites. In the first Nd site, Nd is bonded to four equivalent Pm and eight Nd atoms to form NdPm4Nd8 cuboctahedra that share corners with twelve equivalent NdPm4Nd8 cuboctahedra, edges with eight equivalent PmNd12 cuboctahedra, edges with sixteen NdPm4Nd8 cuboctahedra, faces with four equivalent PmNd12 cuboctahedra, and faces with fourteen NdPm4Nd8 cuboctahedra. There are four shorter (3.67 Å) and four longer (3.69 Å) Nd–Nd bond lengths. In the second Nd site, Nd is bonded to four equivalent Pm and eight equivalent Nd atoms to form NdPm4Nd8 cuboctahedra that share corners with four equivalent NdPm4Nd8 cuboctahedra, corners with eight equivalent PmNd12 cuboctahedra, edges with twenty-four NdPm4Nd8 cuboctahedra, faces with six equivalent PmNd12 cuboctahedra, and faces with twelve NdPm4Nd8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmNd3 by Materials Project

PmNd3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pm is bonded to twelve equivalent Nd atoms to form PmNd12 cuboctahedra that share corners with six equivalent PmNd12 cuboctahedra, corners with twelve equivalent NdPm4Nd8 cuboctahedra, edges with eighteen equivalent NdPm4Nd8 cuboctahedra, faces with eight equivalent PmNd12 cuboctahedra, and faces with twelve equivalent NdPm4Nd8 cuboctahedra. There are six shorter (3.68 Å) and six longer (3.70 Å) Pm–Nd bond lengths. Nd is bonded to four equivalent Pm and eight equivalent Nd atoms to form NdPm4Nd8 cuboctahedra that share corners with four equivalent PmNd12 cuboctahedra, corners with fourteen equivalent NdPm4Nd8 cuboctahedra, edges with six equivalent PmNd12 cuboctahedra, edges with twelve equivalent NdPm4Nd8 cuboctahedra, faces with four equivalent PmNd12 cuboctahedra, and faces with sixteen equivalent NdPm4Nd8 cuboctahedra. There are four shorter (3.68 Å) and four longer (3.70 Å) Nd–Nd bond lengths.

36 MATERIALS SCIENCE↗