Materials Data on Pu3Th by Materials Project

Abstract

Pu3Th is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are three inequivalent Pu sites. In the first Pu site, Pu is bonded to eight Pu and four equivalent Th atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent ThPu12 cuboctahedra, corners with fourteen PuPu8Th4 cuboctahedra, edges with six equivalent ThPu12 cuboctahedra, edges with twelve PuPu8Th4 cuboctahedra, faces with four equivalent ThPu12 cuboctahedra, and faces with sixteen PuPu8Th4 cuboctahedra. There are a spread of Pu–Pu bond distances ranging from 3.35–3.51 Å. There are two shorter (3.39 Å) and two longer (3.45 Å) Pu–Th bond lengths. In the second Pu site, Pu is bonded to eight Pu and four equivalent Th atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent ThPu12 cuboctahedra, corners with fourteen PuPu8Th4 cuboctahedra, edges with six equivalent ThPu12 cuboctahedra, edges with twelve PuPu8Th4 cuboctahedra, faces with four equivalent ThPu12 cuboctahedra, and faces with sixteen PuPu8Th4 cuboctahedra. There are a spread of Pu–Pu bond distances ranging from 3.35–3.51 Å. There are two shorter (3.39 Å) and two longer (3.45 Å) Pu–Th bond lengths. In the third Pu site, Pu is bonded to eight Pu and four equivalent Th atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent ThPu12 cuboctahedra, corners with fourteen PuPu8Th4 cuboctahedra, edges with six equivalent ThPu12 cuboctahedra, edges with twelve PuPu8Th4 cuboctahedra, faces with four equivalent ThPu12 cuboctahedra, and faces with sixteen PuPu8Th4 cuboctahedra. There are one shorter (3.38 Å) and one longer (3.51 Å) Pu–Pu bond lengths. There are two shorter (3.39 Å) and two longer (3.45 Å) Pu–Th bond lengths. Th is bonded to twelve Pu atoms to form ThPu12 cuboctahedra that share corners with six equivalent ThPu12 cuboctahedra, corners with twelve PuPu8Th4 cuboctahedra, edges with eighteen PuPu8Th4 cuboctahedra, faces with eight equivalent ThPu12 cuboctahedra, and faces with twelve PuPu8Th4 cuboctahedra.