Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Sn”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,009 records · Page 56

Materials Data on Ca2(ZnSn2)3 by Materials Project

Ca2Zn3Sn6 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a 2-coordinate geometry to six Zn and eight Sn atoms. There are four shorter (3.43 Å) and two longer (3.49 Å) Ca–Zn bond lengths. There are a spread of Ca–Sn bond distances ranging from 3.29–3.51 Å. In the second Ca site, Ca is bonded in a 2-coordinate geometry to six Zn and eight Sn atoms. There are two shorter (3.50 Å) and four longer (3.58 Å) Ca–Zn bond lengths. There are a spread of Ca–Sn bond distances ranging from 3.29–3.54 Å. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded in a 4-coordinate geometry to four Ca and four Sn atoms. There are two shorter (2.79 Å) and two longer (2.85 Å) Zn–Sn bond lengths. In the second Zn site, Zn is bonded in a 9-coordinate geometry to four Ca and five Sn atoms. There are one shorter (2.66 Å) and four longer (2.75 Å) Zn–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 1-coordinate geometry to two Ca, one Zn, and three equivalent Sn atoms. There are a spread of Sn–Sn bond distances ranging from 2.93–2.96 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to four Ca and five Zn atoms. In the third Sn site, Sn is bonded in a 8-coordinate geometry to four Ca and four equivalent Zn atoms.

36 MATERIALS SCIENCE↗

Materials Data on MgSn by Materials Project

MgSn crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded to five Mg and seven Sn atoms to form distorted MgMg5Sn7 cuboctahedra that share corners with nine equivalent MgMg5Sn7 cuboctahedra, corners with nine equivalent SnMg8Sn4 cuboctahedra, edges with eight SnMg7Sn5 cuboctahedra, edges with ten MgMg5Sn7 cuboctahedra, faces with nine MgMg5Sn7 cuboctahedra, and faces with eleven SnMg8Sn4 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.25–3.29 Å. There are a spread of Mg–Sn bond distances ranging from 3.24–3.28 Å. In the second Mg site, Mg is bonded to four equivalent Mg and eight Sn atoms to form distorted MgMg4Sn8 cuboctahedra that share corners with eighteen SnMg7Sn5 cuboctahedra, edges with four equivalent SnMg8Sn4 cuboctahedra, edges with fourteen MgMg5Sn7 cuboctahedra, faces with ten MgMg5Sn7 cuboctahedra, and faces with ten SnMg8Sn4 cuboctahedra. There are a spread of Mg–Sn bond distances ranging from 3.23–3.29 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded to eight Mg and four Sn atoms to form distorted SnMg8Sn4 cuboctahedra that share corners with eighteen equivalent MgMg5Sn7 cuboctahedra, edges with four equivalent MgMg4Sn8 cuboctahedra, edges with fourteen SnMg7Sn5 cuboctahedra, faces with ten MgMg5Sn7 cuboctahedra, and faces with ten SnMg8Sn4 cuboctahedra. All Sn–Sn bond lengths are 3.31 Å. In the second Sn site, Sn is bonded to seven Mg and five Sn atoms to form distorted SnMg7Sn5 cuboctahedra that share corners with nine equivalent MgMg4Sn8 cuboctahedra, corners with nine equivalent SnMg7Sn5 cuboctahedra, edges with eight equivalent MgMg5Sn7 cuboctahedra, edges with ten SnMg8Sn4 cuboctahedra, faces with nine SnMg8Sn4 cuboctahedra, and faces with eleven MgMg5Sn7 cuboctahedra. There are two shorter (3.24 Å) and one longer (3.30 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded to seven Mg and five Sn atoms to form distorted SnMg7Sn5 cuboctahedra that share corners with nine equivalent MgMg4Sn8 cuboctahedra, corners with nine equivalent SnMg7Sn5 cuboctahedra, edges with eight equivalent MgMg5Sn7 cuboctahedra, edges with ten SnMg7Sn5 cuboctahedra, faces with nine SnMg8Sn4 cuboctahedra, and faces with eleven MgMg5Sn7 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Dy2NiSn6 by Materials Project

Dy2NiSn6 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Dy is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Dy–Sn bond distances ranging from 3.19–3.45 Å. Ni is bonded in a body-centered cubic geometry to eight Sn atoms. There are four shorter (2.71 Å) and four longer (2.72 Å) Ni–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Dy, two equivalent Ni, and five Sn atoms. There are one shorter (3.12 Å) and four longer (3.13 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent Dy and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.99 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Dy, two equivalent Ni, and four equivalent Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ce5(Sn5Rh2)2 by Materials Project

Ce5Rh4Sn10 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are three inequivalent Ce sites. In the first Ce site, Ce is bonded in a 8-coordinate geometry to four equivalent Rh and twelve Sn atoms. All Ce–Rh bond lengths are 3.51 Å. There are eight shorter (3.24 Å) and four longer (3.56 Å) Ce–Sn bond lengths. In the second Ce site, Ce is bonded to four equivalent Rh and eight Sn atoms to form face-sharing CeSn8Rh4 cuboctahedra. All Ce–Rh bond lengths are 3.29 Å. There are two shorter (3.16 Å) and six longer (3.34 Å) Ce–Sn bond lengths. In the third Ce site, Ce is bonded in a 8-coordinate geometry to four equivalent Rh and ten Sn atoms. All Ce–Rh bond lengths are 3.65 Å. There are a spread of Ce–Sn bond distances ranging from 3.48–3.60 Å. Rh is bonded in a 10-coordinate geometry to five Ce and five Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.63–2.74 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to six Ce, two equivalent Rh, and one Sn atom. The Sn–Sn bond length is 2.74 Å. In the second Sn site, Sn is bonded in a 2-coordinate geometry to five Ce and two equivalent Rh atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to four Ce and two equivalent Rh atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ce3Sn5 by Materials Project

Ce3Sn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Ce sites. In the first Ce site, Ce is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of Ce–Sn bond distances ranging from 3.14–3.58 Å. In the second Ce site, Ce is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Ce–Sn bond distances ranging from 3.26–3.51 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 5-coordinate geometry to five Ce and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.24 Å. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six Ce and four Sn atoms. There are two shorter (3.10 Å) and one longer (3.19 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded in a 3-coordinate geometry to six Ce and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nd3Ni2Sn7 by Materials Project

Nd3Ni2Sn7 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent Nd sites. In the first Nd site, Nd is bonded in a 12-coordinate geometry to two equivalent Ni and twelve Sn atoms. Both Nd–Ni bond lengths are 3.53 Å. There are a spread of Nd–Sn bond distances ranging from 3.29–3.40 Å. In the second Nd site, Nd is bonded in a 10-coordinate geometry to four equivalent Ni and ten Sn atoms. All Nd–Ni bond lengths are 3.64 Å. There are a spread of Nd–Sn bond distances ranging from 3.42–3.52 Å. Ni is bonded in a 5-coordinate geometry to five Nd and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.49–2.58 Å. There are four inequivalent Sn sites. In the first Sn site, Sn is bonded in a square co-planar geometry to four equivalent Nd atoms. In the second Sn site, Sn is bonded in a 12-coordinate geometry to four Nd and two equivalent Ni atoms. In the third Sn site, Sn is bonded in a 12-coordinate geometry to four Nd and two equivalent Ni atoms. In the fourth Sn site, Sn is bonded in a 9-coordinate geometry to six equivalent Nd, one Ni, and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.89 Å.

36 MATERIALS SCIENCE↗

Materials Data on Cd2Fe3Cu10(SnSe4)5 by Materials Project

Fe3Cu10Cd2(SnSe4)5 is Clathrate-derived structured and crystallizes in the orthorhombic Fmm2 space group. The structure is three-dimensional. there are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four Se2- atoms to form FeSe4 tetrahedra that share corners with four SnSe4 tetrahedra and corners with eight CuSe4 tetrahedra. All Fe–Se bond lengths are 2.43 Å. In the second Fe3+ site, Fe3+ is bonded to four Se2- atoms to form FeSe4 tetrahedra that share corners with four SnSe4 tetrahedra and corners with eight equivalent CuSe4 tetrahedra. There are two shorter (2.43 Å) and two longer (2.44 Å) Fe–Se bond lengths. There are three inequivalent Cu+1.10+ sites. In the first Cu+1.10+ site, Cu+1.10+ is bonded to four Se2- atoms to form CuSe4 tetrahedra that share corners with four FeSe4 tetrahedra, corners with four CuSe4 tetrahedra, and corners with four SnSe4 tetrahedra. All Cu–Se bond lengths are 2.45 Å. In the second Cu+1.10+ site, Cu+1.10+ is bonded to four Se2- atoms to form CuSe4 tetrahedra that share corners with two equivalent FeSe4 tetrahedra, corners with two equivalent CdSe4 tetrahedra, corners with four CuSe4 tetrahedra, and corners with four SnSe4 tetrahedra. There are a spread of Cu–Se bond distances ranging from 2.42–2.45 Å. In the third Cu+1.10+ site, Cu+1.10+ is bonded to four Se2- atoms to form CuSe4 tetrahedra that share corners with four CuSe4 tetrahedra, corners with four equivalent CdSe4 tetrahedra, and corners with four equivalent SnSe4 tetrahedra. There are two shorter (2.41 Å) and two longer (2.42 Å) Cu–Se bond lengths. Cd2+ is bonded to four Se2- atoms to form CdSe4 tetrahedra that share corners with four SnSe4 tetrahedra and corners with eight CuSe4 tetrahedra. All Cd–Se bond lengths are 2.67 Å. There are three inequivalent Sn+3.20+ sites. In the first Sn+3.20+ site, Sn+3.20+ is bonded to four Se2- atoms to form SnSe4 tetrahedra that share corners with four FeSe4 tetrahedra and corners with eight equivalent CuSe4 tetrahedra. All Sn–Se bond lengths are 2.68 Å. In the second Sn+3.20+ site, Sn+3.20+ is bonded to four Se2- atoms to form SnSe4 tetrahedra that share a cornercorner with one CdSe4 tetrahedra, corners with three FeSe4 tetrahedra, and corners with eight CuSe4 tetrahedra. There are one shorter (2.63 Å) and three longer (2.65 Å) Sn–Se bond lengths. In the third Sn+3.20+ site, Sn+3.20+ is bonded to four Se2- atoms to form SnSe4 tetrahedra that share a cornercorner with one FeSe4 tetrahedra, corners with three equivalent CdSe4 tetrahedra, and corners with eight CuSe4 tetrahedra. There are a spread of Sn–Se bond distances ranging from 2.61–2.64 Å. There are eight inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to one Fe3+, two Cu+1.10+, and one Sn+3.20+ atom to form corner-sharing SeFeCu2Sn tetrahedra. In the second Se2- site, Se2- is bonded to one Fe3+, two equivalent Cu+1.10+, and one Sn+3.20+ atom to form corner-sharing SeFeCu2Sn tetrahedra. In the third Se2- site, Se2- is bonded to one Fe3+, two equivalent Cu+1.10+, and one Sn+3.20+ atom to form corner-sharing SeFeCu2Sn tetrahedra. In the fourth Se2- site, Se2- is bonded to two equivalent Cu+1.10+, one Cd2+, and one Sn+3.20+ atom to form corner-sharing SeCdCu2Sn tetrahedra. In the fifth Se2- site, Se2- is bonded to two equivalent Cu+1.10+, one Cd2+, and one Sn+3.20+ atom to form corner-sharing SeCdCu2Sn tetrahedra. In the sixth Se2- site, Se2- is bonded to one Fe3+, two equivalent Cu+1.10+, and one Sn+3.20+ atom to form corner-sharing SeFeCu2Sn tetrahedra. In the seventh Se2- site, Se2- is bonded to one Fe3+, two equivalent Cu+1.10+, and one Sn+3.20+ atom to form corner-sharing SeFeCu2Sn tetrahedra. In the eighth Se2- site, Se2- is bonded to two Cu+1.10+, one Cd2+, and one Sn+3.20+ atom to form corner-sharing SeCdCu2Sn tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on MgSn5 by Materials Project

MgSn5 crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Mg is bonded to six equivalent Sn atoms to form distorted MgSn6 cuboctahedra that share corners with twelve equivalent SnSn12 cuboctahedra, edges with six equivalent MgSn6 cuboctahedra, and faces with two equivalent SnSn12 cuboctahedra. All Mg–Sn bond lengths are 3.26 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 12-coordinate geometry to three equivalent Mg and three equivalent Sn atoms. All Sn–Sn bond lengths are 3.51 Å. In the second Sn site, Sn is bonded to twelve Sn atoms to form distorted SnSn12 cuboctahedra that share corners with six equivalent MgSn6 cuboctahedra, corners with twelve equivalent SnSn12 cuboctahedra, edges with twelve SnSn12 cuboctahedra, a faceface with one MgSn6 cuboctahedra, and faces with thirteen SnSn12 cuboctahedra. There are six shorter (3.32 Å) and three longer (3.45 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded to twelve Sn atoms to form a mixture of corner, edge, and face-sharing SnSn12 cuboctahedra. All Sn–Sn bond lengths are 3.32 Å.

36 MATERIALS SCIENCE↗

Materials Data on Yb3Sn5 by Materials Project

Yb3Sn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Yb sites. In the first Yb site, Yb is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of Yb–Sn bond distances ranging from 3.15–3.54 Å. In the second Yb site, Yb is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Yb–Sn bond distances ranging from 3.28–3.53 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 3-coordinate geometry to six Yb and three Sn atoms. There are two shorter (3.06 Å) and one longer (3.09 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six Yb and four Sn atoms. There are one shorter (3.20 Å) and one longer (3.36 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded in a 5-coordinate geometry to five Yb and four Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr2CaSn5 by Materials Project

Sr2CaSn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sr is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Sr–Sn bond distances ranging from 3.41–3.68 Å. Ca is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of Ca–Sn bond distances ranging from 3.28–3.72 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 1-coordinate geometry to four equivalent Sr, two equivalent Ca, and four Sn atoms. There are a spread of Sn–Sn bond distances ranging from 3.06–3.37 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to four equivalent Sr, two equivalent Ca, and three Sn atoms. The Sn–Sn bond length is 3.06 Å. In the third Sn site, Sn is bonded in a 5-coordinate geometry to four equivalent Sr, one Ca, and four Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on La3Sn5 by Materials Project

La3Sn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of La–Sn bond distances ranging from 3.22–3.67 Å. In the second La site, La is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of La–Sn bond distances ranging from 3.36–3.60 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 5-coordinate geometry to five La and four Sn atoms. There are two shorter (3.08 Å) and two longer (3.28 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six La and four Sn atoms. There are two shorter (3.09 Å) and one longer (3.21 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded in a 9-coordinate geometry to six La and three Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on ZrSn by Materials Project

ZrSn crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Zr sites. In the first Zr site, Zr is bonded in a 6-coordinate geometry to one Zr and six Sn atoms. The Zr–Zr bond length is 3.30 Å. There are a spread of Zr–Sn bond distances ranging from 3.00–3.24 Å. In the second Zr site, Zr is bonded in a 12-coordinate geometry to five Zr and seven Sn atoms. There are two shorter (3.11 Å) and two longer (3.14 Å) Zr–Zr bond lengths. There are a spread of Zr–Sn bond distances ranging from 3.07–3.43 Å. In the third Zr site, Zr is bonded in a 5-coordinate geometry to two equivalent Zr and five Sn atoms. There are a spread of Zr–Sn bond distances ranging from 3.01–3.07 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 2-coordinate geometry to four Zr and seven Sn atoms. There are a spread of Sn–Sn bond distances ranging from 3.23–3.42 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to seven Zr and two equivalent Sn atoms. In the third Sn site, Sn is bonded in a 7-coordinate geometry to seven Zr and three equivalent Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sm5(Sn5Rh2)2 by Materials Project

Sm5(Rh2Sn5)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are three inequivalent Sm sites. In the first Sm site, Sm is bonded in a 8-coordinate geometry to four equivalent Rh and twelve Sn atoms. All Sm–Rh bond lengths are 3.52 Å. There are eight shorter (3.26 Å) and four longer (3.56 Å) Sm–Sn bond lengths. In the second Sm site, Sm is bonded to four equivalent Rh and eight Sn atoms to form face-sharing SmSn8Rh4 cuboctahedra. All Sm–Rh bond lengths are 3.31 Å. There are a spread of Sm–Sn bond distances ranging from 3.15–3.33 Å. In the third Sm site, Sm is bonded in a 8-coordinate geometry to four equivalent Rh and ten Sn atoms. All Sm–Rh bond lengths are 3.63 Å. There are four shorter (3.50 Å) and six longer (3.60 Å) Sm–Sn bond lengths. Rh is bonded in a 5-coordinate geometry to five Sm and five Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.61–2.75 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to six Sm, two equivalent Rh, and one Sn atom. The Sn–Sn bond length is 2.78 Å. In the second Sn site, Sn is bonded in a 2-coordinate geometry to five Sm and two equivalent Rh atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to four Sm and two equivalent Rh atoms.

36 MATERIALS SCIENCE↗

Materials Data on TlSn3 by Materials Project

TlSn3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Tl is bonded to twelve Sn atoms to form a mixture of distorted corner and face-sharing TlSn12 cuboctahedra. There are six shorter (3.36 Å) and six longer (3.57 Å) Tl–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Tl and eight Sn atoms. There are two shorter (3.24 Å) and six longer (3.49 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Tl and eight Sn atoms. All Sn–Sn bond lengths are 3.49 Å. In the third Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Tl and eight Sn atoms. Both Sn–Sn bond lengths are 3.49 Å.

36 MATERIALS SCIENCE↗

Materials Data on Pr3Sn5 by Materials Project

Pr3Sn5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 9-coordinate geometry to nine Sn atoms. There are a spread of Pr–Sn bond distances ranging from 3.20–3.59 Å. In the second Pr site, Pr is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Pr–Sn bond distances ranging from 3.32–3.61 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 5-coordinate geometry to five Pr and four Sn atoms. There are two shorter (3.09 Å) and two longer (3.28 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six Pr and four Sn atoms. There are two shorter (3.09 Å) and one longer (3.12 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded in a 9-coordinate geometry to six Pr and three Sn atoms.

36 MATERIALS SCIENCE↗

Materials Data on ZrSn by Materials Project

ZrSn crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are three 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 3.00–3.44 Å. There are a spread of Zr–Sn bond distances ranging from 2.99–3.41 Å. In the second Zr site, Zr is bonded in a 12-coordinate geometry to eight Zr and four Sn atoms. There are two shorter (3.16 Å) and two longer (3.23 Å) Zr–Zr bond lengths. There are two shorter (2.99 Å) and two longer (3.36 Å) Zr–Sn bond lengths. In the third Zr site, Zr is bonded in a 12-coordinate geometry to four Zr and seven Sn atoms. There are a spread of Zr–Sn bond distances ranging from 3.07–3.24 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to five Zr and five Sn atoms. There are one shorter (3.08 Å) and four longer (3.19 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six Zr and two equivalent Sn atoms. In the third Sn site, Sn is bonded to ten Zr and two equivalent Sn atoms to form a mixture of distorted edge and face-sharing SnZr10Sn2 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Pr5(Sn5Rh2)2 by Materials Project

Pr5(Rh2Sn5)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are three inequivalent Pr sites. In the first Pr site, Pr is bonded in a 8-coordinate geometry to four equivalent Rh and twelve Sn atoms. All Pr–Rh bond lengths are 3.54 Å. There are eight shorter (3.30 Å) and four longer (3.58 Å) Pr–Sn bond lengths. In the second Pr site, Pr is bonded to four equivalent Rh and eight Sn atoms to form distorted face-sharing PrSn8Rh4 cuboctahedra. All Pr–Rh bond lengths are 3.35 Å. There are two shorter (3.20 Å) and six longer (3.35 Å) Pr–Sn bond lengths. In the third Pr site, Pr is bonded in a 10-coordinate geometry to four equivalent Rh and ten Sn atoms. All Pr–Rh bond lengths are 3.67 Å. There are a spread of Pr–Sn bond distances ranging from 3.53–3.63 Å. Rh is bonded in a 10-coordinate geometry to five Pr and five Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.63–2.76 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to six Pr, two equivalent Rh, and one Sn atom. The Sn–Sn bond length is 2.80 Å. In the second Sn site, Sn is bonded in a 2-coordinate geometry to five Pr and two equivalent Rh atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to four Pr and two equivalent Rh atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaSn2Rh by Materials Project

LaRhSn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 4-coordinate geometry to four equivalent Rh and ten Sn atoms. All La–Rh bond lengths are 3.45 Å. There are a spread of La–Sn bond distances ranging from 3.54–3.74 Å. In the second La site, La is bonded in a 8-coordinate geometry to six equivalent Rh and nine Sn atoms. There are four shorter (3.50 Å) and two longer (3.59 Å) La–Rh bond lengths. There are a spread of La–Sn bond distances ranging from 3.25–3.54 Å. Rh is bonded in a 10-coordinate geometry to five La and five Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.66–2.82 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 2-coordinate geometry to five La, two equivalent Rh, and one Sn atom. The Sn–Sn bond length is 2.86 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six La, two equivalent Rh, and one Sn atom. In the third Sn site, Sn is bonded in a 3-coordinate geometry to four La and three equivalent Rh atoms.

36 MATERIALS SCIENCE↗