Results for “Ho-Th” | Engineering Papers

DOE OSTI2020

Materials Data on Ho3Th by Materials Project

ThHo3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Th is bonded to twelve equivalent Ho atoms to form ThHo12 cuboctahedra that share corners with six equivalent ThHo12 cuboctahedra, corners with twelve equivalent HoHo8Th4 cuboctahedra, edges with eighteen equivalent HoHo8Th4 cuboctahedra, faces with eight equivalent ThHo12 cuboctahedra, and faces with twelve equivalent HoHo8Th4 cuboctahedra. There are six shorter (3.55 Å) and six longer (3.56 Å) Th–Ho bond lengths. Ho is bonded to four equivalent Th and eight equivalent Ho atoms to form HoHo8Th4 cuboctahedra that share corners with four equivalent ThHo12 cuboctahedra, corners with fourteen equivalent HoHo8Th4 cuboctahedra, edges with six equivalent ThHo12 cuboctahedra, edges with twelve equivalent HoHo8Th4 cuboctahedra, faces with four equivalent ThHo12 cuboctahedra, and faces with sixteen equivalent HoHo8Th4 cuboctahedra. There are four shorter (3.55 Å) and four longer (3.56 Å) Ho–Ho bond lengths.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on HoTh by Materials Project

ThHo is alpha La-derived structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded to six equivalent Th and six Ho atoms to form ThHo6Th6 cuboctahedra that share corners with twelve ThHo6Th6 cuboctahedra, edges with twelve ThHo6Th6 cuboctahedra, edges with twelve HoHo6Th6 cuboctahedra, faces with six equivalent ThHo6Th6 cuboctahedra, and faces with twelve HoHo6Th6 cuboctahedra. All Th–Th bond lengths are 3.55 Å. All Th–Ho bond lengths are 3.54 Å. In the second Th site, Th is bonded to ten equivalent Th and six Ho atoms to form ThHo6Th10 cuboctahedra that share corners with ten HoHo6Th6 cuboctahedra, corners with twelve ThHo6Th6 cuboctahedra, edges with eight HoHo6Th6 cuboctahedra, edges with sixteen ThHo6Th6 cuboctahedra, faces with sixteen equivalent ThHo6Th10 cuboctahedra, and faces with eighteen HoHo6Th6 cuboctahedra. There are a spread of Th–Th bond distances ranging from 3.55–7.10 Å. All Th–Ho bond lengths are 3.54 Å. There are three inequivalent Ho sites. In the first Ho site, Ho is bonded to six equivalent Th and six equivalent Ho atoms to form HoHo6Th6 cuboctahedra that share corners with twelve HoHo6Th6 cuboctahedra, edges with twelve equivalent ThHo6Th6 cuboctahedra, edges with twelve HoHo6Th6 cuboctahedra, faces with six equivalent HoHo6Th6 cuboctahedra, and faces with twelve equivalent ThHo6Th6 cuboctahedra. All Ho–Ho bond lengths are 3.55 Å. In the second Ho site, Ho is bonded to six Th and six equivalent Ho atoms to form HoHo6Th6 cuboctahedra that share corners with five equivalent ThHo6Th10 cuboctahedra, corners with twelve HoHo6Th6 cuboctahedra, edges with ten ThHo6Th6 cuboctahedra, edges with twelve HoHo6Th6 cuboctahedra, faces with six equivalent HoHo6Th6 cuboctahedra, and faces with fifteen ThHo6Th6 cuboctahedra. All Ho–Th bond lengths are 3.54 Å. All Ho–Ho bond lengths are 3.55 Å. In the third Ho site, Ho is bonded to six Th and six equivalent Ho atoms to form HoHo6Th6 cuboctahedra that share corners with five equivalent ThHo6Th10 cuboctahedra, corners with twelve HoHo6Th6 cuboctahedra, edges with ten ThHo6Th6 cuboctahedra, edges with twelve HoHo6Th6 cuboctahedra, faces with six equivalent HoHo6Th6 cuboctahedra, and faces with fifteen ThHo6Th6 cuboctahedra. All Ho–Ho bond lengths are 3.55 Å.

36 MATERIALS SCIENCE↗