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Materials Data on ScSn3 by Materials Project

ScSn3 is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sc is bonded to twelve Sn atoms to form ScSn12 cuboctahedra that share corners with four equivalent ScSn12 cuboctahedra, edges with eight equivalent ScSn12 cuboctahedra, edges with sixteen equivalent SnSc4Sn8 cuboctahedra, faces with four equivalent ScSn12 cuboctahedra, and faces with eight equivalent SnSc4Sn8 cuboctahedra. There are four shorter (3.14 Å) and eight longer (3.36 Å) Sc–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to four equivalent Sc and eight Sn atoms to form distorted SnSc4Sn8 cuboctahedra that share corners with twelve equivalent SnSc4Sn8 cuboctahedra, edges with eight equivalent ScSn12 cuboctahedra, edges with eight equivalent SnSc4Sn8 cuboctahedra, faces with four equivalent ScSn12 cuboctahedra, and faces with ten equivalent SnSc4Sn8 cuboctahedra. There are four shorter (3.14 Å) and four longer (3.36 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a square co-planar geometry to four equivalent Sc and eight equivalent Sn atoms.

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Materials Data on Ca(Sn2O3)2 by Materials Project

Ca(Sn2O3)2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.39–2.72 Å. There are two inequivalent Sn+2.50+ sites. In the first Sn+2.50+ site, Sn+2.50+ is bonded to five O2- atoms to form SnO5 square pyramids that share corners with four equivalent SnO6 octahedra, corners with two equivalent SnO5 square pyramids, edges with three equivalent SnO6 octahedra, and edges with three equivalent SnO5 square pyramids. The corner-sharing octahedra tilt angles range from 25–84°. There are a spread of Sn–O bond distances ranging from 2.21–2.54 Å. In the second Sn+2.50+ site, Sn+2.50+ is bonded to six O2- atoms to form distorted SnO6 octahedra that share corners with two equivalent SnO6 octahedra, corners with four equivalent SnO5 square pyramids, edges with two equivalent SnO6 octahedra, and edges with three equivalent SnO5 square pyramids. The corner-sharing octahedra tilt angles range from 0–43°. There are a spread of Sn–O bond distances ranging from 2.09–2.69 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to six Sn+2.50+ atoms to form OSn6 octahedra that share corners with eight equivalent OCaSn4 square pyramids, corners with two equivalent OCa2Sn2 trigonal pyramids, edges with two equivalent OSn6 octahedra, edges with two equivalent OCaSn4 square pyramids, and edges with four equivalent OCa2Sn3 trigonal bipyramids. In the second O2- site, O2- is bonded to two equivalent Ca2+ and three Sn+2.50+ atoms to form distorted OCa2Sn3 trigonal bipyramids that share corners with four equivalent OCaSn4 square pyramids, corners with two equivalent OCa2Sn3 trigonal bipyramids, corners with four equivalent OCa2Sn2 trigonal pyramids, edges with two equivalent OSn6 octahedra, edges with three equivalent OCaSn4 square pyramids, edges with three equivalent OCa2Sn3 trigonal bipyramids, and an edgeedge with one OCa2Sn2 trigonal pyramid. In the third O2- site, O2- is bonded to one Ca2+ and four Sn+2.50+ atoms to form distorted OCaSn4 square pyramids that share corners with four equivalent OSn6 octahedra, a cornercorner with one OCaSn4 square pyramid, corners with four equivalent OCa2Sn3 trigonal bipyramids, an edgeedge with one OSn6 octahedra, edges with two equivalent OCaSn4 square pyramids, edges with three equivalent OCa2Sn3 trigonal bipyramids, and edges with two equivalent OCa2Sn2 trigonal pyramids. The corner-sharing octahedra tilt angles range from 9–81°. In the fourth O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Sn+2.50+ atoms to form distorted OCa2Sn2 trigonal pyramids that share corners with two equivalent OSn6 octahedra, corners with eight equivalent OCa2Sn3 trigonal bipyramids, corners with two equivalent OCa2Sn2 trigonal pyramids, edges with four equivalent OCaSn4 square pyramids, and edges with two equivalent OCa2Sn3 trigonal bipyramids. The corner-sharing octahedral tilt angles are 1°.

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Materials Data on ZnSn3 by Materials Project

ZnSn3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Zn is bonded in a square co-planar geometry to twelve Sn atoms. There are four shorter (3.13 Å) and eight longer (3.42 Å) Zn–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to four equivalent Zn and eight Sn atoms to form a mixture of distorted face, edge, and corner-sharing SnZn4Sn8 cuboctahedra. There are four shorter (3.13 Å) and four longer (3.42 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a square co-planar geometry to four equivalent Zn and eight equivalent Sn atoms.

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Materials Data on La(NiSn)2 by Materials Project

LaNi2Sn2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to eight Ni and eight Sn atoms. There are four shorter (3.34 Å) and four longer (3.44 Å) La–Ni bond lengths. There are four shorter (3.40 Å) and four longer (3.46 Å) La–Sn bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 8-coordinate geometry to four equivalent La and four equivalent Sn atoms. All Ni–Sn bond lengths are 2.58 Å. In the second Ni site, Ni is bonded in a 9-coordinate geometry to four equivalent La and five Sn atoms. There are one shorter (2.54 Å) and four longer (2.60 Å) Ni–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent La and four equivalent Ni atoms. In the second Sn site, Sn is bonded in a 9-coordinate geometry to four equivalent La and five Ni atoms.

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Materials Data on CuSn3 by Materials Project

Sn3.0Cu is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Cu is bonded to twelve Sn atoms to form CuSn12 cuboctahedra that share corners with four equivalent CuSn12 cuboctahedra, corners with eight equivalent SnCu4Sn8 cuboctahedra, edges with eight equivalent CuSn12 cuboctahedra, edges with sixteen equivalent SnCu4Sn8 cuboctahedra, faces with four equivalent CuSn12 cuboctahedra, and faces with fourteen SnCu4Sn8 cuboctahedra. There are four shorter (3.17 Å) and eight longer (3.31 Å) Cu–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to four equivalent Cu and eight Sn atoms to form SnCu4Sn8 cuboctahedra that share corners with twelve equivalent SnCu4Sn8 cuboctahedra, edges with eight equivalent CuSn12 cuboctahedra, edges with sixteen SnCu4Sn8 cuboctahedra, faces with four equivalent CuSn12 cuboctahedra, and faces with fourteen SnCu4Sn8 cuboctahedra. There are four shorter (3.17 Å) and four longer (3.31 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded to four equivalent Cu and eight equivalent Sn atoms to form SnCu4Sn8 cuboctahedra that share corners with four equivalent SnCu4Sn8 cuboctahedra, corners with eight equivalent CuSn12 cuboctahedra, edges with twenty-four SnCu4Sn8 cuboctahedra, faces with six equivalent CuSn12 cuboctahedra, and faces with twelve SnCu4Sn8 cuboctahedra.

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Materials Data on ZrSn3 by Materials Project

ZrSn3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Zr is bonded in a distorted body-centered cubic geometry to fourteen Sn atoms. There are eight shorter (3.21 Å) and six longer (3.71 Å) Zr–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to six equivalent Zr and eight equivalent Sn atoms. All Sn–Sn bond lengths are 3.21 Å. In the second Sn site, Sn is bonded in a distorted body-centered cubic geometry to four equivalent Zr and four equivalent Sn atoms.

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Materials Data on MnSn3 by Materials Project

MnSn3 is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Mn is bonded to twelve Sn atoms to form MnSn12 cuboctahedra that share corners with four equivalent MnSn12 cuboctahedra, corners with eight equivalent SnMn4Sn8 cuboctahedra, edges with eight equivalent MnSn12 cuboctahedra, edges with sixteen equivalent SnMn4Sn8 cuboctahedra, faces with four equivalent MnSn12 cuboctahedra, and faces with fourteen SnMn4Sn8 cuboctahedra. There are four shorter (3.20 Å) and eight longer (3.30 Å) Mn–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to four equivalent Mn and eight Sn atoms to form distorted SnMn4Sn8 cuboctahedra that share corners with twelve equivalent SnMn4Sn8 cuboctahedra, edges with eight equivalent MnSn12 cuboctahedra, edges with sixteen SnMn4Sn8 cuboctahedra, faces with four equivalent MnSn12 cuboctahedra, and faces with fourteen SnMn4Sn8 cuboctahedra. There are four shorter (3.20 Å) and four longer (3.30 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded to four equivalent Mn and eight equivalent Sn atoms to form distorted SnMn4Sn8 cuboctahedra that share corners with four equivalent SnMn4Sn8 cuboctahedra, corners with eight equivalent MnSn12 cuboctahedra, edges with twenty-four SnMn4Sn8 cuboctahedra, faces with six equivalent MnSn12 cuboctahedra, and faces with twelve SnMn4Sn8 cuboctahedra.

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Materials Data on Sm3(Ni3Sn2)2 by Materials Project

Sm3(Ni3Sn2)2 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to six Ni and six Sn atoms. There are a spread of Sm–Ni bond distances ranging from 3.01–3.52 Å. There are a spread of Sm–Sn bond distances ranging from 3.20–3.33 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 11-coordinate geometry to four equivalent Sm, three equivalent Ni, and four Sn atoms. There are two shorter (2.59 Å) and one longer (2.67 Å) Ni–Ni bond lengths. There are a spread of Ni–Sn bond distances ranging from 2.58–2.74 Å. In the second Ni site, Ni is bonded in a distorted q6 geometry to two equivalent Sm, five Ni, and three equivalent Sn atoms. Both Ni–Ni bond lengths are 2.56 Å. There are one shorter (2.54 Å) and two longer (2.57 Å) Ni–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a distorted q6 geometry to four equivalent Sm and six Ni atoms. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six equivalent Sm and three equivalent Ni atoms.

36 MATERIALS SCIENCE↗
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Materials Data on Mg5Sn by Materials Project

Mg5Sn crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are five inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to five Mg and two equivalent Sn atoms. There are a spread of Mg–Mg bond distances ranging from 3.18–3.28 Å. Both Mg–Sn bond lengths are 3.12 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to nine Mg and three equivalent Sn atoms. There are a spread of Mg–Mg bond distances ranging from 3.01–3.38 Å. There are two shorter (3.23 Å) and one longer (3.25 Å) Mg–Sn bond lengths. In the third Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and two equivalent Sn atoms. Both Mg–Mg bond lengths are 3.21 Å. Both Mg–Sn bond lengths are 3.16 Å. In the fourth Mg site, Mg is bonded in a distorted single-bond geometry to four Mg and one Sn atom. Both Mg–Mg bond lengths are 3.11 Å. The Mg–Sn bond length is 3.04 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to ten Mg and two equivalent Sn atoms. Both Mg–Mg bond lengths are 3.38 Å. Both Mg–Sn bond lengths are 3.22 Å. Sn is bonded in a 12-coordinate geometry to ten Mg atoms.

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Materials Data on ErCu5Sn by Materials Project

ErCu5Sn crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 6-coordinate geometry to fifteen Cu and four equivalent Sn atoms. There are a spread of Er–Cu bond distances ranging from 2.88–3.39 Å. There are two shorter (3.27 Å) and two longer (3.40 Å) Er–Sn bond lengths. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded to three equivalent Er, seven Cu, and two equivalent Sn atoms to form a mixture of face, edge, and corner-sharing CuEr3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.49–2.58 Å. Both Cu–Sn bond lengths are 2.80 Å. In the second Cu site, Cu is bonded to three equivalent Er, seven Cu, and two equivalent Sn atoms to form a mixture of face, edge, and corner-sharing CuEr3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.48–2.56 Å. There are one shorter (2.76 Å) and one longer (2.78 Å) Cu–Sn bond lengths. In the third Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent Er, six Cu, and one Sn atom. The Cu–Cu bond length is 3.03 Å. The Cu–Sn bond length is 2.78 Å. In the fourth Cu site, Cu is bonded in a 4-coordinate geometry to three equivalent Er, five Cu, and three equivalent Sn atoms. There are one shorter (2.62 Å) and two longer (3.00 Å) Cu–Sn bond lengths. Sn is bonded in a 1-coordinate geometry to four equivalent Er and ten Cu atoms.

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Materials Data on ZrSn by Materials Project

ZrSn crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. there are two inequivalent Zr sites. In the first Zr site, Zr is bonded in a 12-coordinate geometry to five Zr and seven Sn atoms. There are a spread of Zr–Zr bond distances ranging from 3.00–3.31 Å. There are a spread of Zr–Sn bond distances ranging from 2.98–3.28 Å. In the second Zr site, Zr is bonded in a 12-coordinate geometry to four equivalent Zr and six Sn atoms. There are a spread of Zr–Sn bond distances ranging from 3.05–3.23 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a distorted hexagonal planar geometry to six Zr atoms. In the second Sn site, Sn is bonded in a 7-coordinate geometry to seven Zr atoms. In the third Sn site, Sn is bonded in a 6-coordinate geometry to six Zr atoms.

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Materials Data on HoCu5Sn by Materials Project

HoCu5Sn crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho is bonded in a 6-coordinate geometry to fifteen Cu and four equivalent Sn atoms. There are a spread of Ho–Cu bond distances ranging from 2.88–3.41 Å. There are two shorter (3.29 Å) and two longer (3.41 Å) Ho–Sn bond lengths. There are four inequivalent Cu sites. In the first Cu site, Cu is bonded to three equivalent Ho, seven Cu, and two equivalent Sn atoms to form a mixture of corner, edge, and face-sharing CuHo3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.50–2.59 Å. Both Cu–Sn bond lengths are 2.81 Å. In the second Cu site, Cu is bonded to three equivalent Ho, seven Cu, and two equivalent Sn atoms to form a mixture of corner, edge, and face-sharing CuHo3Cu7Sn2 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.48–2.57 Å. There are one shorter (2.77 Å) and one longer (2.79 Å) Cu–Sn bond lengths. In the third Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent Ho, six Cu, and one Sn atom. The Cu–Cu bond length is 3.05 Å. The Cu–Sn bond length is 2.79 Å. In the fourth Cu site, Cu is bonded in a 4-coordinate geometry to three equivalent Ho, five Cu, and three equivalent Sn atoms. There are one shorter (2.63 Å) and two longer (3.01 Å) Cu–Sn bond lengths. Sn is bonded in a 1-coordinate geometry to four equivalent Ho and ten Cu atoms.

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Materials Data on Nd6Co2Sn by Materials Project

Nd6Co2Sn crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are three inequivalent Nd sites. In the first Nd site, Nd is bonded in a 4-coordinate geometry to two Co and two Sn atoms. There are one shorter (2.82 Å) and one longer (3.43 Å) Nd–Co bond lengths. There are one shorter (3.17 Å) and one longer (3.48 Å) Nd–Sn bond lengths. In the second Nd site, Nd is bonded in a 5-coordinate geometry to three Co and two Sn atoms. There are two shorter (2.98 Å) and one longer (3.23 Å) Nd–Co bond lengths. There are one shorter (3.33 Å) and one longer (3.79 Å) Nd–Sn bond lengths. In the third Nd site, Nd is bonded in a 4-coordinate geometry to three Co and one Sn atom. There are one shorter (2.85 Å) and two longer (2.97 Å) Nd–Co bond lengths. The Nd–Sn bond length is 3.52 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 2-coordinate geometry to eight Nd atoms. In the second Co site, Co is bonded in a 9-coordinate geometry to eight Nd and one Co atom. The Co–Co bond length is 2.26 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a cuboctahedral geometry to twelve Nd atoms. In the second Sn site, Sn is bonded in a body-centered cubic geometry to eight Nd atoms.

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Materials Data on Ce(NiSn)2 by Materials Project

CeNi2Sn2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to eight Ni and eight Sn atoms. There are four shorter (3.27 Å) and four longer (3.42 Å) Ce–Ni bond lengths. There are four shorter (3.34 Å) and four longer (3.44 Å) Ce–Sn bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 8-coordinate geometry to four equivalent Ce and four equivalent Sn atoms. All Ni–Sn bond lengths are 2.56 Å. In the second Ni site, Ni is bonded in a 9-coordinate geometry to four equivalent Ce and five Sn atoms. There are one shorter (2.49 Å) and four longer (2.56 Å) Ni–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Ce and four equivalent Ni atoms. In the second Sn site, Sn is bonded in a 9-coordinate geometry to four equivalent Ce and five Ni atoms.

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Materials Data on Ce3Si2Sn3 by Materials Project

Ce3Sn3Si2 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Ce sites. In the first Ce site, Ce is bonded to six equivalent Sn and six equivalent Si atoms to form face-sharing CeSi6Sn6 cuboctahedra. All Ce–Sn bond lengths are 3.39 Å. All Ce–Si bond lengths are 3.26 Å. In the second Ce site, Ce is bonded in a 9-coordinate geometry to six Sn and three equivalent Si atoms. There are three shorter (3.18 Å) and three longer (3.27 Å) Ce–Sn bond lengths. All Ce–Si bond lengths are 3.40 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to six equivalent Ce atoms to form edge-sharing SnCe6 octahedra. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six Ce and three equivalent Si atoms. All Sn–Si bond lengths are 2.62 Å. Si is bonded in a 9-coordinate geometry to six Ce and three equivalent Sn atoms.

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Materials Data on Tm6Co2Sn by Materials Project

Tm6Co2Sn crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are three inequivalent Tm sites. In the first Tm site, Tm is bonded in a distorted rectangular see-saw-like geometry to two Co and two Sn atoms. There are one shorter (2.67 Å) and one longer (3.10 Å) Tm–Co bond lengths. There are one shorter (3.06 Å) and one longer (3.29 Å) Tm–Sn bond lengths. In the second Tm site, Tm is bonded in a 5-coordinate geometry to three Co and two Sn atoms. There are two shorter (2.90 Å) and one longer (3.09 Å) Tm–Co bond lengths. There are one shorter (3.17 Å) and one longer (3.59 Å) Tm–Sn bond lengths. In the third Tm site, Tm is bonded in a 4-coordinate geometry to three Co and one Sn atom. There are one shorter (2.70 Å) and two longer (2.85 Å) Tm–Co bond lengths. The Tm–Sn bond length is 3.35 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 2-coordinate geometry to eight Tm atoms. In the second Co site, Co is bonded in a 9-coordinate geometry to eight Tm and one Co atom. The Co–Co bond length is 2.25 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a cuboctahedral geometry to twelve Tm atoms. In the second Sn site, Sn is bonded in a distorted body-centered cubic geometry to eight Tm atoms.

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Materials Data on Ce(SnPd)2 by Materials Project

Ce(PdSn)2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to eight Pd and eight Sn atoms. There are four shorter (3.46 Å) and four longer (3.54 Å) Ce–Pd bond lengths. There are four shorter (3.49 Å) and four longer (3.56 Å) Ce–Sn bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded in a 4-coordinate geometry to four equivalent Ce and four equivalent Sn atoms. All Pd–Sn bond lengths are 2.67 Å. In the second Pd site, Pd is bonded in a 9-coordinate geometry to four equivalent Ce and five Sn atoms. There are one shorter (2.60 Å) and four longer (2.68 Å) Pd–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ce and four equivalent Pd atoms. In the second Sn site, Sn is bonded in a 9-coordinate geometry to four equivalent Ce and five Pd atoms.

36 MATERIALS SCIENCE↗
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Materials Data on Ho6Co2Sn by Materials Project

Ho6Co2Sn crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are three inequivalent Ho sites. In the first Ho site, Ho is bonded in a 4-coordinate geometry to two Co and two Sn atoms. There are one shorter (2.71 Å) and one longer (3.15 Å) Ho–Co bond lengths. There are one shorter (3.07 Å) and one longer (3.31 Å) Ho–Sn bond lengths. In the second Ho site, Ho is bonded in a 5-coordinate geometry to three Co and two Sn atoms. There are two shorter (2.90 Å) and one longer (3.13 Å) Ho–Co bond lengths. There are one shorter (3.20 Å) and one longer (3.62 Å) Ho–Sn bond lengths. In the third Ho site, Ho is bonded in a 4-coordinate geometry to three Co and one Sn atom. There are one shorter (2.72 Å) and two longer (2.85 Å) Ho–Co bond lengths. The Ho–Sn bond length is 3.39 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 2-coordinate geometry to eight Ho and one Co atom. The Co–Co bond length is 2.72 Å. In the second Co site, Co is bonded in a 9-coordinate geometry to eight Ho and one Co atom. The Co–Co bond length is 2.24 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a cuboctahedral geometry to twelve Ho atoms. In the second Sn site, Sn is bonded in a body-centered cubic geometry to eight Ho atoms.

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