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6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LaSnRh by Materials Project

LaRhSn crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. La is bonded in a 11-coordinate geometry to five Rh and six equivalent Sn atoms. There are four shorter (3.11 Å) and one longer (3.14 Å) La–Rh bond lengths. There are two shorter (3.33 Å) and four longer (3.47 Å) La–Sn bond lengths. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 9-coordinate geometry to three equivalent La and six equivalent Sn atoms. All Rh–Sn bond lengths are 2.83 Å. In the second Rh site, Rh is bonded in a 9-coordinate geometry to six equivalent La and three equivalent Sn atoms. All Rh–Sn bond lengths are 2.90 Å. Sn is bonded in a 12-coordinate geometry to six equivalent La, four Rh, and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.21 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

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↗
DOE OSTI2020

Materials Data on La3Sn13Rh4 by Materials Project

SnLa3Rh4Sn12 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to four equivalent Rh and twelve equivalent Sn atoms. All La–Rh bond lengths are 3.49 Å. There are four shorter (3.47 Å) and eight longer (3.48 Å) La–Sn bond lengths. Rh is bonded in a 6-coordinate geometry to three equivalent La and six equivalent Sn atoms. All Rh–Sn bond lengths are 2.70 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a cuboctahedral geometry to twelve equivalent Sn atoms. All Sn–Sn bond lengths are 3.38 Å. In the second Sn site, Sn is bonded in a 2-coordinate geometry to three equivalent La, two equivalent Rh, and one Sn atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La2Sn5Rh3 by Materials Project

La2Rh3Sn5 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. La is bonded in a 2-coordinate geometry to one Rh and eight Sn atoms. The La–Rh bond length is 3.35 Å. There are a spread of La–Sn bond distances ranging from 3.23–3.58 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 6-coordinate geometry to six Sn atoms. There are four shorter (2.70 Å) and two longer (2.89 Å) Rh–Sn bond lengths. In the second Rh site, Rh is bonded in a 5-coordinate geometry to one La and five Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.60–2.71 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent La, three Rh, and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.01 Å. In the second Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Rh atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to four equivalent La, three Rh, and four Sn atoms. Both Sn–Sn bond lengths are 3.24 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaSn2Rh by Materials Project

LaRhSn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. La is bonded in a 4-coordinate geometry to four equivalent Rh and ten Sn atoms. All La–Rh bond lengths are 3.54 Å. There are a spread of La–Sn bond distances ranging from 3.49–3.70 Å. Rh is bonded in a 5-coordinate geometry to four equivalent La and five Sn atoms. There are one shorter (2.56 Å) and four longer (2.67 Å) Rh–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a distorted single-bond geometry to six equivalent La, one Rh, and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.87 Å. In the second Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent La and four equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La(Sn2Rh)2 by Materials Project

La(RhSn2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. La is bonded in a 6-coordinate geometry to seven Sn atoms. There are a spread of La–Sn bond distances ranging from 3.22–3.38 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 7-coordinate geometry to seven Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.72–2.92 Å. In the second Rh site, Rh is bonded in a 7-coordinate geometry to seven Sn atoms. There are a spread of Rh–Sn bond distances ranging from 2.73–2.84 Å. There are four inequivalent Sn sites. In the first Sn site, Sn is bonded in a 6-coordinate geometry to two equivalent La and four Rh atoms. In the second Sn site, Sn is bonded in a 5-coordinate geometry to two equivalent La and three equivalent Rh atoms. In the third Sn site, Sn is bonded in a 3-coordinate geometry to three equivalent La and three equivalent Rh atoms. In the fourth Sn site, Sn is bonded to four Rh atoms to form a mixture of distorted edge and corner-sharing SnRh4 tetrahedra.

36 MATERIALS SCIENCE↗