DOI: 10.17188/1280836
title: Materials Data on Sm10Pd21 by Materials Project

description: Sm10Pd21 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twenty inequivalent Sm sites. In the first Sm site, Sm is bonded in a 10-coordinate geometry to ten Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.80–3.11 Å. In the second Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.19 Å. In the third Sm site, Sm is bonded in a 10-coordinate geometry to ten Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.80–3.10 Å. In the fourth Sm site, Sm is bonded in a 10-coordinate geometry to ten Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.21 Å. In the fifth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.15 Å. In the sixth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.89–3.16 Å. In the seventh Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.16 Å. In the eighth Sm site, Sm is bonded in a 9-coordinate geometry to nine Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.83–3.04 Å. In the ninth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.91–3.07 Å. In the tenth Sm site, Sm is bonded in a 9-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.50 Å. In the eleventh Sm site, Sm is bonded in a distorted q6 geometry to ten Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.92–3.03 Å. In the twelfth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.92–3.07 Å. In the thirteenth Sm site, Sm is bonded in a 9-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.86–3.53 Å. In the fourteenth Sm site, Sm is bonded in a 10-coordinate geometry to ten Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.20 Å. In the fifteenth Sm site, Sm is bonded in a 9-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.86–3.52 Å. In the sixteenth Sm site, Sm is bonded in a distorted q6 geometry to ten Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.92–3.03 Å. In the seventeenth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.87–3.49 Å. In the eighteenth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.89–3.18 Å. In the nineteenth Sm site, Sm is bonded in a 11-coordinate geometry to eleven Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.88–3.19 Å. In the twentieth Sm site, Sm is bonded in a 9-coordinate geometry to nine Pd atoms. There are a spread of Sm–Pd bond distances ranging from 2.83–3.05 Å. There are forty-two inequivalent Pd sites. In the first Pd site, Pd is bonded in a 12-coordinate geometry to six Sm and six Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.74–3.11 Å. In the second Pd site, Pd is bonded to five Sm and two Pd atoms to form distorted PdSm5Pd2 trigonal bipyramids that share a cornercorner with one PdSm6Pd2 octahedra, corners with two equivalent PdSm5Pd2 trigonal bipyramids, and a faceface with one PdSm5Pd6 trigonal bipyramid. The corner-sharing octahedral tilt angles are 61°. There are one shorter (3.00 Å) and one longer (3.01 Å) Pd–Pd bond lengths. In the third Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and four Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.86–2.99 Å. In the fourth Pd site, Pd is bonded to six Sm and two Pd atoms to form distorted PdSm6Pd2 octahedra that share corners with two equivalent PdSm6Pd2 octahedra, corners with four PdSm5Pd2 trigonal bipyramids, edges with two PdSm5Pd7 cuboctahedra, and faces with two PdSm5Pd7 cuboctahedra. The corner-sharing octahedral tilt angles are 6°. There are one shorter (3.04 Å) and one longer (3.06 Å) Pd–Pd bond lengths. In the fifth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm atoms. In the sixth Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and two Pd atoms. Both Pd–Pd bond lengths are 2.85 Å. In the seventh Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and four Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.86–2.99 Å. In the eighth Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and four Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.95–3.19 Å. In the ninth Pd site, Pd is bonded in a 6-coordinate geometry to six Sm and two Pd atoms. There are one shorter (3.02 Å) and one longer (3.03 Å) Pd–Pd bond lengths. In the tenth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.85–2.98 Å. In the eleventh Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and four Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.97–3.18 Å. In the twelfth Pd site, Pd is bonded in a distorted rectangular see-saw-like geometry to four Sm and six Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.90–3.09 Å. In the thirteenth Pd site, Pd is bonded to five Sm and six Pd atoms to form distorted PdSm5Pd6 trigonal bipyramids that share corners with two PdSm5Pd7 cuboctahedra, a cornercorner with one PdSm6Pd2 octahedra, corners with two equivalent PdSm5Pd6 trigonal bipyramids, and faces with four PdSm5Pd2 trigonal bipyramids. The corner-sharing octahedral tilt angles are 31°. There are a spread of Pd–Pd bond distances ranging from 2.93–3.17 Å. In the fourteenth Pd site, Pd is bonded to five Sm and two Pd atoms to form distorted PdSm5Pd2 trigonal bipyramids that share a cornercorner with one PdSm6Pd2 octahedra, corners with two equivalent PdSm5Pd2 trigonal bipyramids, and a faceface with one PdSm5Pd6 trigonal bipyramid. The corner-sharing octahedral tilt angles are 25°. Both Pd–Pd bond lengths are 2.99 Å. In the fifteenth Pd site, Pd is bonded to five Sm and six Pd atoms to form distorted PdSm5Pd6 trigonal bipyramids that share corners with two PdSm5Pd7 cuboctahedra, corners with two equivalent PdSm5Pd6 trigonal bipyramids, and faces with five PdSm5Pd6 trigonal bipyramids. There are a spread of Pd–Pd bond distances ranging from 2.95–3.11 Å. In the sixteenth Pd site, Pd is bonded to five Sm and seven Pd atoms to form distorted PdSm5Pd7 cuboctahedra that share corners with two equivalent PdSm5Pd7 cuboctahedra, corners with two PdSm5Pd6 trigonal bipyramids, edges with two equivalent PdSm5Pd7 cuboctahedra, an edgeedge with one PdSm6Pd2 octahedra, faces with three PdSm5Pd7 cuboctahedra, and a faceface with one PdSm6Pd2 octahedra. There are a spread of Pd–Pd bond distances ranging from 2.86–2.99 Å. In the seventeenth Pd site, Pd is bonded in a 12-coordinate geometry to six Sm and six Pd atoms. There are one shorter (3.05 Å) and one longer (3.10 Å) Pd–Pd bond lengths. In the eighteenth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.87–2.98 Å. In the nineteenth Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and two Pd atoms. There are one shorter (2.84 Å) and one longer (2.86 Å) Pd–Pd bond lengths. In the twentieth Pd site, Pd is bonded to five Sm and seven Pd atoms to form distorted PdSm5Pd7 cuboctahedra that share corners with two equivalent PdSm5Pd7 cuboctahedra, corners with two PdSm5Pd6 trigonal bipyramids, edges with two equivalent PdSm5Pd7 cuboctahedra, an edgeedge with one PdSm6Pd2 octahedra, faces with three PdSm5Pd7 cuboctahedra, and a faceface with one PdSm6Pd2 octahedra. There are one shorter (2.92 Å) and one longer (3.00 Å) Pd–Pd bond lengths. In the twenty-first Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and four Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.86–3.00 Å. In the twenty-second Pd site, Pd is bonded in a distorted rectangular see-saw-like geometry to four Sm and two Pd atoms. The Pd–Pd bond length is 2.91 Å. In the twenty-third Pd site, Pd is bonded to five Sm and six Pd atoms to form distorted PdSm5Pd6 trigonal bipyramids that share corners with two PdSm5Pd7 cuboctahedra, corners with two equivalent PdSm5Pd6 trigonal bipyramids, and faces with four PdSm5Pd6 trigonal bipyramids. There are a spread of Pd–Pd bond distances ranging from 2.93–3.16 Å. In the twenty-fourth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. In the twenty-fifth Pd site, Pd is bonded to five Sm and seven Pd atoms to form distorted PdSm5Pd7 cuboctahedra that share corners with two equivalent PdSm5Pd7 cuboctahedra, corners with two PdSm5Pd6 trigonal bipyramids, edges with two equivalent PdSm5Pd7 cuboctahedra, and faces with three PdSm5Pd7 cuboctahedra. There are a spread of Pd–Pd bond distances ranging from 2.88–2.97 Å. In the twenty-sixth Pd site, Pd is bonded in a distorted square co-planar geometry to four Sm atoms. In the twenty-seventh Pd site, Pd is bonded in a 5-coordinate geometry to five Sm atoms. In the twenty-eighth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.85–2.93 Å. In the twenty-ninth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. The Pd–Pd bond length is 2.94 Å. In the thirtieth Pd site, Pd is bonded in a 12-coordinate geometry to six Sm and six Pd atoms. There are a spread of Pd–Pd bond distances ranging from 2.74–3.11 Å. In the thirty-first Pd site, Pd is bonded to five Sm and six Pd atoms to form distorted PdSm5Pd6 trigonal bipyramids that share corners with two PdSm5Pd7 cuboctahedra, a cornercorner with one PdSm6Pd2 octahedra, corners with two equivalent PdSm5Pd6 trigonal bipyramids, and faces with five PdSm5Pd6 trigonal bipyramids. The corner-sharing octahedral tilt angles are 32°. The Pd–Pd bond length is 2.98 Å. In the thirty-second Pd site, Pd is bonded in a distorted rectangular see-saw-like geometry to four Sm and six Pd atoms. The Pd–Pd bond length is 2.94 Å. In the thirty-third Pd site, Pd is bonded in a 5-coordinate geometry to five Sm and four Pd atoms. The Pd–Pd bond length is 2.85 Å. In the thirty-fourth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. The Pd–Pd bond length is 2.91 Å. In the thirty-fifth Pd site, Pd is bonded in a distorted rectangular see-saw-like geometry to four Sm and two Pd atoms. In the thirty-sixth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm atoms. In the thirty-seventh Pd site, Pd is bonded in a 12-coordinate geometry to six Sm and six Pd atoms. In the thirty-eighth Pd site, Pd is bonded to five Sm and seven Pd atoms to form distorted PdSm5Pd7 cuboctahedra that share corners with two equivalent PdSm5Pd7 cuboctahedra, corners with two PdSm5Pd6 trigonal bipyramids, edges with two equivalent PdSm5Pd7 cuboctahedra, and faces with three PdSm5Pd7 cuboctahedra. In the thirty-ninth Pd site, Pd is bonded in a distorted square co-planar geometry to four Sm atoms. In the fortieth Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. There are one shorter (2.87 Å) and one longer (2.98 Å) Pd–Pd bond lengths. In the forty-first Pd site, Pd is bonded in a 12-coordinate geometry to five Sm and seven Pd atoms. In the forty-second Pd site, Pd is bonded in a 12-coordinate geometry to five Sm atoms.