Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Pt”

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 793 records · Page 44

Materials Data on Dy3Si11Pt23 by Materials Project

Dy3Pt23Si11 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Dy3+ is bonded to eight equivalent Pt+1.26- atoms to form distorted corner-sharing DyPt8 cuboctahedra. All Dy–Pt bond lengths are 3.16 Å. There are four inequivalent Pt+1.26- sites. In the first Pt+1.26- site, Pt+1.26- is bonded in a distorted square co-planar geometry to four equivalent Si+1.82+ atoms. All Pt–Si bond lengths are 2.58 Å. In the second Pt+1.26- site, Pt+1.26- is bonded in a 3-coordinate geometry to two equivalent Dy3+ and three Si+1.82+ atoms. There are one shorter (2.43 Å) and two longer (2.46 Å) Pt–Si bond lengths. In the third Pt+1.26- site, Pt+1.26- is bonded to four Si+1.82+ atoms to form a mixture of corner and edge-sharing PtSi4 tetrahedra. There are one shorter (2.43 Å) and three longer (2.49 Å) Pt–Si bond lengths. In the fourth Pt+1.26- site, Pt+1.26- is bonded to four Si+1.82+ atoms to form a mixture of distorted corner and edge-sharing PtSi4 tetrahedra. All Pt–Si bond lengths are 2.51 Å. There are three inequivalent Si+1.82+ sites. In the first Si+1.82+ site, Si+1.82+ is bonded in a 7-coordinate geometry to seven Pt+1.26- atoms. In the second Si+1.82+ site, Si+1.82+ is bonded in a body-centered cubic geometry to eight Pt+1.26- atoms. In the third Si+1.82+ site, Si+1.82+ is bonded in a 7-coordinate geometry to seven Pt+1.26- atoms.

36 MATERIALS SCIENCE↗

Materials Data on Y5Pt4 by Materials Project

Y5Pt4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Y sites. In the first Y site, Y is bonded to six Pt atoms to form distorted corner-sharing YPt6 octahedra. The corner-sharing octahedra tilt angles range from 49–53°. There are a spread of Y–Pt bond distances ranging from 2.83–3.20 Å. In the second Y site, Y is bonded in a 6-coordinate geometry to six Pt atoms. There are a spread of Y–Pt bond distances ranging from 2.85–3.01 Å. In the third Y site, Y is bonded in a 7-coordinate geometry to seven Pt atoms. There are a spread of Y–Pt bond distances ranging from 2.97–3.34 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to eight Y and one Pt atom. The Pt–Pt bond length is 2.79 Å. In the second Pt site, Pt is bonded in a 9-coordinate geometry to eight Y and one Pt atom. In the third Pt site, Pt is bonded in a 8-coordinate geometry to eight Y atoms.

36 MATERIALS SCIENCE↗

Materials Data on CaPPt by Materials Project

CaPtP crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a 12-coordinate geometry to six Pt and six P atoms. There are a spread of Ca–Pt bond distances ranging from 3.28–3.42 Å. There are a spread of Ca–P bond distances ranging from 3.00–3.17 Å. In the second Ca site, Ca is bonded in a 10-coordinate geometry to six Pt and four equivalent P atoms. There are a spread of Ca–Pt bond distances ranging from 3.03–3.23 Å. All Ca–P bond lengths are 3.03 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 5-coordinate geometry to six Ca, one Pt, and three P atoms. The Pt–Pt bond length is 2.91 Å. There are a spread of Pt–P bond distances ranging from 2.30–2.45 Å. In the second Pt site, Pt is bonded in a 5-coordinate geometry to six Ca, one Pt, and three P atoms. There are a spread of Pt–P bond distances ranging from 2.30–2.44 Å. There are two inequivalent P sites. In the first P site, P is bonded to four equivalent Ca and three Pt atoms to form a mixture of distorted face, edge, and corner-sharing PCa4Pt3 pentagonal bipyramids. In the second P site, P is bonded in a 9-coordinate geometry to six Ca and three Pt atoms.

36 MATERIALS SCIENCE↗

Materials Data on Dy2In16Pt7 by Materials Project

Dy2Pt7In16 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Dy is bonded in a 4-coordinate geometry to four equivalent Pt and ten In atoms. All Dy–Pt bond lengths are 3.18 Å. There are a spread of Dy–In bond distances ranging from 3.29–3.41 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a body-centered cubic geometry to eight In atoms. There are four shorter (2.76 Å) and four longer (2.81 Å) Pt–In bond lengths. In the second Pt site, Pt is bonded in a body-centered cubic geometry to eight In atoms. There are a spread of Pt–In bond distances ranging from 2.77–2.79 Å. In the third Pt site, Pt is bonded in a 9-coordinate geometry to two equivalent Dy and seven In atoms. There are a spread of Pt–In bond distances ranging from 2.78–2.93 Å. There are five inequivalent In sites. In the first In site, In is bonded in a 4-coordinate geometry to two equivalent Dy and four Pt atoms. In the second In site, In is bonded to one Dy and four Pt atoms to form a mixture of distorted edge and corner-sharing InDyPt4 tetrahedra. In the third In site, In is bonded in a distorted trigonal non-coplanar geometry to three Pt atoms. In the fourth In site, In is bonded in a 3-coordinate geometry to one Dy and three Pt atoms. In the fifth In site, In is bonded in a 2-coordinate geometry to four equivalent Dy and two equivalent Pt atoms.

36 MATERIALS SCIENCE↗

Materials Data on Tb2In16Pt7 by Materials Project

Tb2Pt7In16 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Tb is bonded in a 4-coordinate geometry to four equivalent Pt and ten In atoms. All Tb–Pt bond lengths are 3.21 Å. There are a spread of Tb–In bond distances ranging from 3.32–3.40 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to two equivalent Tb and seven In atoms. There are a spread of Pt–In bond distances ranging from 2.78–2.90 Å. In the second Pt site, Pt is bonded in a body-centered cubic geometry to eight In atoms. There are a spread of Pt–In bond distances ranging from 2.76–2.79 Å. In the third Pt site, Pt is bonded in a body-centered cubic geometry to eight In atoms. There are four shorter (2.77 Å) and four longer (2.80 Å) Pt–In bond lengths. There are five inequivalent In sites. In the first In site, In is bonded in a distorted trigonal non-coplanar geometry to three Pt atoms. In the second In site, In is bonded in a 4-coordinate geometry to two equivalent Tb and four Pt atoms. In the third In site, In is bonded in a 4-coordinate geometry to one Tb and four Pt atoms. In the fourth In site, In is bonded in a 3-coordinate geometry to one Tb, three Pt, and two equivalent In atoms. Both In–In bond lengths are 3.26 Å. In the fifth In site, In is bonded in a 2-coordinate geometry to four equivalent Tb, two equivalent Pt, and five In atoms. The In–In bond length is 2.96 Å.

36 MATERIALS SCIENCE↗

Materials Data on AlPt3 by Materials Project

Pt3Al crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a distorted rectangular see-saw-like geometry to four equivalent Pt and four equivalent Al atoms. All Pt–Pt bond lengths are 2.81 Å. All Pt–Al bond lengths are 2.76 Å. In the second Pt site, Pt is bonded in a water-like geometry to four equivalent Al atoms. There are two shorter (2.56 Å) and two longer (3.13 Å) Pt–Al bond lengths. In the third Pt site, Pt is bonded in a 2-coordinate geometry to eight Pt and four equivalent Al atoms. All Pt–Pt bond lengths are 2.78 Å. There are two shorter (2.59 Å) and two longer (2.90 Å) Pt–Al bond lengths. Al is bonded in a 12-coordinate geometry to twelve Pt atoms.

36 MATERIALS SCIENCE↗

Materials Data on SmInPt by Materials Project

SmPtIn crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Sm sites. In the first Sm site, Sm is bonded in a 2-coordinate geometry to three Pt and six In atoms. There are a spread of Sm–Pt bond distances ranging from 2.71–3.22 Å. There are a spread of Sm–In bond distances ranging from 3.42–3.76 Å. In the second Sm site, Sm is bonded in a 2-coordinate geometry to three Pt and six In atoms. There are two shorter (2.71 Å) and one longer (3.23 Å) Sm–Pt bond lengths. There are a spread of Sm–In bond distances ranging from 3.42–3.75 Å. In the third Sm site, Sm is bonded in a 2-coordinate geometry to three Pt and six In atoms. There are a spread of Sm–Pt bond distances ranging from 2.71–3.22 Å. There are a spread of Sm–In bond distances ranging from 3.42–3.75 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to three Sm and six In atoms. There are a spread of Pt–In bond distances ranging from 2.88–2.90 Å. In the second Pt site, Pt is bonded in a trigonal planar geometry to three Sm atoms. In the third Pt site, Pt is bonded in a trigonal planar geometry to three Sm atoms. There are three inequivalent In sites. In the first In site, In is bonded in a 8-coordinate geometry to six Sm and two equivalent Pt atoms. In the second In site, In is bonded in a 8-coordinate geometry to six Sm and two equivalent Pt atoms. In the third In site, In is bonded in a 8-coordinate geometry to six Sm and two equivalent Pt atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeAl5Pt3 by Materials Project

CePt3Al5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ce is bonded in a 11-coordinate geometry to six Pt and eleven Al atoms. There are a spread of Ce–Pt bond distances ranging from 3.23–3.26 Å. There are a spread of Ce–Al bond distances ranging from 3.23–3.59 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to two equivalent Ce and seven Al atoms. There are a spread of Pt–Al bond distances ranging from 2.52–2.64 Å. In the second Pt site, Pt is bonded in a 9-coordinate geometry to two equivalent Ce and seven Al atoms. There are a spread of Pt–Al bond distances ranging from 2.50–2.68 Å. In the third Pt site, Pt is bonded in a 9-coordinate geometry to two equivalent Ce and seven Al atoms. There are a spread of Pt–Al bond distances ranging from 2.52–2.73 Å. There are five inequivalent Al sites. In the first Al site, Al is bonded in a 5-coordinate geometry to one Ce and five Pt atoms. In the second Al site, Al is bonded in a 4-coordinate geometry to one Ce and four Pt atoms. In the third Al site, Al is bonded to three equivalent Ce and four Pt atoms to form a mixture of distorted face, edge, and corner-sharing AlCe3Pt4 tetrahedra. In the fourth Al site, Al is bonded to three equivalent Ce and four Pt atoms to form a mixture of distorted face, edge, and corner-sharing AlCe3Pt4 tetrahedra. In the fifth Al site, Al is bonded to three equivalent Ce and four Pt atoms to form a mixture of distorted face, edge, and corner-sharing AlCe3Pt4 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on Eu5Pt4 by Materials Project

Eu5Pt4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Eu sites. In the first Eu site, Eu is bonded in a 6-coordinate geometry to six Pt atoms. There are a spread of Eu–Pt bond distances ranging from 2.96–3.11 Å. In the second Eu site, Eu is bonded to seven Pt atoms to form distorted EuPt7 pentagonal bipyramids that share corners with four equivalent EuPt6 octahedra, corners with six equivalent EuPt7 pentagonal bipyramids, edges with two equivalent EuPt7 pentagonal bipyramids, faces with two equivalent EuPt6 octahedra, and faces with three equivalent EuPt7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 46–52°. There are a spread of Eu–Pt bond distances ranging from 3.13–3.44 Å. In the third Eu site, Eu is bonded to six Pt atoms to form distorted EuPt6 octahedra that share corners with four equivalent EuPt6 octahedra, corners with eight equivalent EuPt7 pentagonal bipyramids, and faces with four equivalent EuPt7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 52–54°. There are a spread of Eu–Pt bond distances ranging from 2.96–3.35 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to eight Eu and one Pt atom. The Pt–Pt bond length is 2.78 Å. In the second Pt site, Pt is bonded in a 8-coordinate geometry to eight Eu atoms. In the third Pt site, Pt is bonded in a 9-coordinate geometry to eight Eu and one Pt atom.

36 MATERIALS SCIENCE↗

Materials Data on Sc4Si2Pt7 by Materials Project

Sc4Pt7Si2 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. there are two inequivalent Sc+2.50+ sites. In the first Sc+2.50+ site, Sc+2.50+ is bonded in a distorted q6 geometry to ten Pt+1.43- atoms. There are a spread of Sc–Pt bond distances ranging from 2.78–2.95 Å. In the second Sc+2.50+ site, Sc+2.50+ is bonded in a 8-coordinate geometry to eight Pt+1.43- atoms. There are a spread of Sc–Pt bond distances ranging from 2.91–3.10 Å. There are four inequivalent Pt+1.43- sites. In the first Pt+1.43- site, Pt+1.43- is bonded in a 12-coordinate geometry to four Sc+2.50+ and two equivalent Si atoms. Both Pt–Si bond lengths are 2.40 Å. In the second Pt+1.43- site, Pt+1.43- is bonded in a 12-coordinate geometry to six Sc+2.50+ and one Si atom. The Pt–Si bond length is 2.45 Å. In the third Pt+1.43- site, Pt+1.43- is bonded in a distorted square co-planar geometry to four equivalent Sc+2.50+ atoms. In the fourth Pt+1.43- site, Pt+1.43- is bonded in a 12-coordinate geometry to six Sc+2.50+ and two equivalent Si atoms. There are one shorter (2.42 Å) and one longer (2.48 Å) Pt–Si bond lengths. Si is bonded in a 5-coordinate geometry to five Pt+1.43- atoms.

36 MATERIALS SCIENCE↗

Materials Data on Er5Pt4 by Materials Project

Er5Pt4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Er sites. In the first Er site, Er is bonded in a 6-coordinate geometry to six Pt atoms. There are a spread of Er–Pt bond distances ranging from 2.81–3.00 Å. In the second Er site, Er is bonded in a 7-coordinate geometry to seven Pt atoms. There are a spread of Er–Pt bond distances ranging from 2.94–3.31 Å. In the third Er site, Er is bonded to six Pt atoms to form distorted corner-sharing ErPt6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There are a spread of Er–Pt bond distances ranging from 2.78–3.17 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to eight Er and one Pt atom. The Pt–Pt bond length is 2.78 Å. In the second Pt site, Pt is bonded in a 8-coordinate geometry to eight Er atoms. In the third Pt site, Pt is bonded in a 9-coordinate geometry to eight Er and one Pt atom.

36 MATERIALS SCIENCE↗

Materials Data on Yb5Pt4 by Materials Project

Yb5Pt4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Yb sites. In the first Yb site, Yb is bonded to six Pt atoms to form a mixture of distorted face, edge, and corner-sharing YbPt6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 38–41°. There are a spread of Yb–Pt bond distances ranging from 2.82–2.99 Å. In the second Yb site, Yb is bonded in a 7-coordinate geometry to seven Pt atoms. There are a spread of Yb–Pt bond distances ranging from 2.96–3.42 Å. In the third Yb site, Yb is bonded to six Pt atoms to form a mixture of distorted face and corner-sharing YbPt6 octahedra. The corner-sharing octahedra tilt angles range from 49–54°. There are a spread of Yb–Pt bond distances ranging from 2.86–3.12 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to eight Yb and one Pt atom. The Pt–Pt bond length is 2.75 Å. In the second Pt site, Pt is bonded in a 7-coordinate geometry to eight Yb atoms. In the third Pt site, Pt is bonded in a 9-coordinate geometry to eight Yb and one Pt atom.

36 MATERIALS SCIENCE↗

Materials Data on IrPt by Materials Project

PtIr crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are three inequivalent Ir sites. In the first Ir site, Ir is bonded to six equivalent Ir and six equivalent Pt atoms to form IrIr6Pt6 cuboctahedra that share corners with twelve IrIr6Pt6 cuboctahedra, edges with twelve IrIr6Pt6 cuboctahedra, edges with twelve equivalent PtIr6Pt6 cuboctahedra, faces with six equivalent IrIr6Pt6 cuboctahedra, and faces with twelve equivalent PtIr6Pt6 cuboctahedra. All Ir–Ir bond lengths are 2.78 Å. All Ir–Pt bond lengths are 2.77 Å. In the second Ir site, Ir is bonded to six equivalent Ir and six Pt atoms to form IrIr6Pt6 cuboctahedra that share corners with five equivalent PtIr6Pt10 cuboctahedra, corners with twelve IrIr6Pt6 cuboctahedra, edges with ten PtIr6Pt6 cuboctahedra, edges with twelve IrIr6Pt6 cuboctahedra, faces with six equivalent IrIr6Pt6 cuboctahedra, and faces with fifteen PtIr6Pt6 cuboctahedra. All Ir–Ir bond lengths are 2.78 Å. All Ir–Pt bond lengths are 2.77 Å. In the third Ir site, Ir is bonded to six equivalent Ir and six Pt atoms to form IrIr6Pt6 cuboctahedra that share corners with five equivalent PtIr6Pt10 cuboctahedra, corners with twelve IrIr6Pt6 cuboctahedra, edges with ten PtIr6Pt6 cuboctahedra, edges with twelve IrIr6Pt6 cuboctahedra, faces with six equivalent IrIr6Pt6 cuboctahedra, and faces with fifteen PtIr6Pt6 cuboctahedra. All Ir–Ir bond lengths are 2.78 Å. All Ir–Pt bond lengths are 2.77 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded to six Ir and six equivalent Pt atoms to form PtIr6Pt6 cuboctahedra that share corners with twelve PtIr6Pt6 cuboctahedra, edges with twelve IrIr6Pt6 cuboctahedra, edges with twelve PtIr6Pt6 cuboctahedra, faces with six equivalent PtIr6Pt6 cuboctahedra, and faces with twelve IrIr6Pt6 cuboctahedra. All Pt–Pt bond lengths are 2.78 Å. In the second Pt site, Pt is bonded to six Ir and ten equivalent Pt atoms to form PtIr6Pt10 cuboctahedra that share corners with ten IrIr6Pt6 cuboctahedra, corners with twelve PtIr6Pt6 cuboctahedra, edges with eight IrIr6Pt6 cuboctahedra, edges with sixteen PtIr6Pt6 cuboctahedra, faces with sixteen equivalent PtIr6Pt10 cuboctahedra, and faces with eighteen IrIr6Pt6 cuboctahedra. There are a spread of Pt–Pt bond distances ranging from 2.78–5.57 Å.

36 MATERIALS SCIENCE↗

Materials Data on Dy5Pt4 by Materials Project

Dy5Pt4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Dy sites. In the first Dy site, Dy is bonded to six Pt atoms to form a mixture of distorted edge, face, and corner-sharing DyPt6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 36–43°. There are a spread of Dy–Pt bond distances ranging from 2.90–3.04 Å. In the second Dy site, Dy is bonded in a 7-coordinate geometry to seven Pt atoms. There are a spread of Dy–Pt bond distances ranging from 2.94–3.63 Å. In the third Dy site, Dy is bonded to six Pt atoms to form a mixture of face and corner-sharing DyPt6 octahedra. The corner-sharing octahedra tilt angles range from 48–53°. There are a spread of Dy–Pt bond distances ranging from 2.83–3.10 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to eight Dy and one Pt atom. The Pt–Pt bond length is 2.80 Å. In the second Pt site, Pt is bonded in a 7-coordinate geometry to eight Dy atoms. In the third Pt site, Pt is bonded in a 9-coordinate geometry to eight Dy and one Pt atom.

36 MATERIALS SCIENCE↗

Materials Data on Nb2Pt by Materials Project

Nb2Pt is beta Uranium-derived structured and crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. there are three inequivalent Nb sites. In the first Nb site, Nb is bonded in a 6-coordinate geometry to nine Nb and six Pt atoms. There are a spread of Nb–Nb bond distances ranging from 2.78–3.30 Å. There are two shorter (2.99 Å) and four longer (3.06 Å) Nb–Pt bond lengths. In the second Nb site, Nb is bonded in a 4-coordinate geometry to one Nb and four equivalent Pt atoms. There are a spread of Nb–Pt bond distances ranging from 2.79–2.84 Å. In the third Nb site, Nb is bonded in a 7-coordinate geometry to five Nb and five Pt atoms. There are one shorter (2.57 Å) and one longer (2.62 Å) Nb–Nb bond lengths. There are a spread of Nb–Pt bond distances ranging from 2.88–2.93 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded to eight Nb and four equivalent Pt atoms to form PtNb8Pt4 cuboctahedra that share corners with sixteen equivalent PtNb10Pt2 cuboctahedra, edges with two equivalent PtNb8Pt4 cuboctahedra, and faces with four equivalent PtNb10Pt2 cuboctahedra. All Pt–Pt bond lengths are 2.72 Å. In the second Pt site, Pt is bonded to ten Nb and two Pt atoms to form distorted PtNb10Pt2 cuboctahedra that share corners with eleven PtNb8Pt4 cuboctahedra, edges with three equivalent PtNb10Pt2 cuboctahedra, and faces with seven PtNb8Pt4 cuboctahedra. The Pt–Pt bond length is 2.77 Å.

36 MATERIALS SCIENCE↗

Materials Data on Ho5Pt4 by Materials Project

Ho5Pt4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Ho sites. In the first Ho site, Ho is bonded in a 6-coordinate geometry to six Pt atoms. There are a spread of Ho–Pt bond distances ranging from 2.82–3.01 Å. In the second Ho site, Ho is bonded in a 7-coordinate geometry to seven Pt atoms. There are a spread of Ho–Pt bond distances ranging from 2.95–3.32 Å. In the third Ho site, Ho is bonded to six Pt atoms to form distorted corner-sharing HoPt6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There are a spread of Ho–Pt bond distances ranging from 2.79–3.19 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to eight Ho and one Pt atom. The Pt–Pt bond length is 2.79 Å. In the second Pt site, Pt is bonded in a 8-coordinate geometry to eight Ho atoms. In the third Pt site, Pt is bonded in a 9-coordinate geometry to eight Ho and one Pt atom.

36 MATERIALS SCIENCE↗

Materials Data on Yb4Pt3Au by Materials Project

Yb4Pt3Au crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are four inequivalent Yb sites. In the first Yb site, Yb is bonded in a 7-coordinate geometry to five Pt and two equivalent Au atoms. There are a spread of Yb–Pt bond distances ranging from 2.95–3.02 Å. There are one shorter (3.00 Å) and one longer (3.08 Å) Yb–Au bond lengths. In the second Yb site, Yb is bonded in a 7-coordinate geometry to six Pt and one Au atom. There are a spread of Yb–Pt bond distances ranging from 2.96–3.04 Å. The Yb–Au bond length is 3.09 Å. In the third Yb site, Yb is bonded in a 7-coordinate geometry to five Pt and two equivalent Au atoms. There are a spread of Yb–Pt bond distances ranging from 2.94–3.13 Å. Both Yb–Au bond lengths are 3.02 Å. In the fourth Yb site, Yb is bonded in a 7-coordinate geometry to five Pt and two equivalent Au atoms. There are a spread of Yb–Pt bond distances ranging from 2.93–3.10 Å. Both Yb–Au bond lengths are 3.05 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 7-coordinate geometry to seven Yb atoms. In the second Pt site, Pt is bonded in a 9-coordinate geometry to seven Yb and two equivalent Au atoms. Both Pt–Au bond lengths are 2.88 Å. In the third Pt site, Pt is bonded in a 7-coordinate geometry to seven Yb atoms. Au is bonded in a 9-coordinate geometry to seven Yb and two equivalent Pt atoms.

36 MATERIALS SCIENCE↗

Materials Data on EuBPt4 by Materials Project

EuPt4B crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Eu3+ sites. In the first Eu3+ site, Eu3+ is bonded in a 12-coordinate geometry to twelve equivalent Pt and six equivalent B3- atoms. All Eu–Pt bond lengths are 3.17 Å. All Eu–B bond lengths are 3.22 Å. In the second Eu3+ site, Eu3+ is bonded in a distorted hexagonal planar geometry to six equivalent Pt atoms. All Eu–Pt bond lengths are 3.22 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in an L-shaped geometry to two equivalent Eu3+, two equivalent Pt, and two equivalent B3- atoms. Both Pt–Pt bond lengths are 2.82 Å. Both Pt–B bond lengths are 2.21 Å. In the second Pt site, Pt is bonded in a 12-coordinate geometry to three equivalent Eu3+ and nine Pt atoms. All Pt–Pt bond lengths are 3.22 Å. B3- is bonded in a 6-coordinate geometry to three equivalent Eu3+ and six equivalent Pt atoms.

36 MATERIALS SCIENCE↗