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At least 163 records · Page 9
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DOE OSTI2020

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↗
DOE OSTI2020

Materials Data on Dy5Pt3 by Materials Project

Dy5Pt3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are three inequivalent Dy sites. In the first Dy site, Dy is bonded in a 6-coordinate geometry to six Pt atoms. There are two shorter (3.03 Å) and four longer (3.04 Å) Dy–Pt bond lengths. In the second Dy site, Dy is bonded in a 5-coordinate geometry to five Pt atoms. There are a spread of Dy–Pt bond distances ranging from 2.90–3.30 Å. In the third Dy site, Dy is bonded in a 5-coordinate geometry to five Pt atoms. There are a spread of Dy–Pt bond distances ranging from 2.90–3.30 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 9-coordinate geometry to nine Dy atoms. In the second Pt site, Pt is bonded in a 9-coordinate geometry to nine Dy atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca5Pt3 by Materials Project

Ca5Pt3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a 6-coordinate geometry to six Pt atoms. There are a spread of Ca–Pt bond distances ranging from 3.00–3.44 Å. In the second Ca site, Ca is bonded to four equivalent Pt atoms to form distorted edge-sharing CaPt4 tetrahedra. All Ca–Pt bond lengths are 2.94 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 10-coordinate geometry to ten Ca atoms. In the second Pt site, Pt is bonded in a 10-coordinate geometry to eight equivalent Ca atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeGaPt4 by Materials Project

CePt4Ga crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Ce is bonded in a 6-coordinate geometry to fifteen Pt and three equivalent Ga atoms. There are three shorter (3.18 Å) and twelve longer (3.49 Å) Ce–Pt bond lengths. All Ce–Ga bond lengths are 3.18 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded to three equivalent Ce, six equivalent Pt, and three equivalent Ga atoms to form distorted PtCe3Ga3Pt6 cuboctahedra that share corners with nine equivalent GaCe3Pt9 cuboctahedra, corners with twelve equivalent PtCe4Ga2Pt6 cuboctahedra, edges with six equivalent PtCe3Ga3Pt6 cuboctahedra, faces with three equivalent GaCe3Pt9 cuboctahedra, and faces with twenty PtCe3Ga3Pt6 cuboctahedra. All Pt–Pt bond lengths are 2.67 Å. All Pt–Ga bond lengths are 3.18 Å. In the second Pt site, Pt is bonded to four equivalent Ce, six Pt, and two equivalent Ga atoms to form distorted PtCe4Ga2Pt6 cuboctahedra that share corners with four equivalent GaCe3Pt9 cuboctahedra, corners with twenty PtCe3Ga3Pt6 cuboctahedra, edges with ten equivalent PtCe4Ga2Pt6 cuboctahedra, faces with six equivalent GaCe3Pt9 cuboctahedra, and faces with sixteen PtCe3Ga3Pt6 cuboctahedra. There are two shorter (2.74 Å) and two longer (2.77 Å) Pt–Pt bond lengths. Both Pt–Ga bond lengths are 2.66 Å. Ga is bonded to three equivalent Ce and nine Pt atoms to form distorted GaCe3Pt9 cuboctahedra that share corners with twenty-one PtCe3Ga3Pt6 cuboctahedra, edges with six equivalent GaCe3Pt9 cuboctahedra, faces with two equivalent GaCe3Pt9 cuboctahedra, and faces with twenty-one PtCe3Ga3Pt6 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Yb2Sn5Pt3 by Materials Project

Yb2Pt3Sn5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Yb sites. In the first Yb site, Yb is bonded in a 8-coordinate geometry to two equivalent Pt and six Sn atoms. Both Yb–Pt bond lengths are 3.27 Å. There are a spread of Yb–Sn bond distances ranging from 3.22–3.25 Å. In the second Yb site, Yb is bonded in a 1-coordinate geometry to five Pt and eight Sn atoms. There are a spread of Yb–Pt bond distances ranging from 2.92–3.37 Å. There are a spread of Yb–Sn bond distances ranging from 3.18–3.44 Å. There are three inequivalent Pt sites. In the first Pt site, Pt is bonded in a 7-coordinate geometry to seven Sn atoms. There are a spread of Pt–Sn bond distances ranging from 2.76–2.91 Å. In the second Pt site, Pt is bonded in a 9-coordinate geometry to four equivalent Yb and five Sn atoms. There are a spread of Pt–Sn bond distances ranging from 2.68–2.83 Å. In the third Pt site, Pt is bonded in a 9-coordinate geometry to three Yb and six Sn atoms. There are a spread of Pt–Sn bond distances ranging from 2.73–2.94 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Yb and four Pt atoms. In the second Sn site, Sn is bonded in a 12-coordinate geometry to four equivalent Yb and four Pt atoms. In the third Sn site, Sn is bonded in a 6-coordinate geometry to two equivalent Yb and four Pt atoms. In the fourth Sn site, Sn is bonded in a 3-coordinate geometry to four Yb, three Pt, and one Sn atom. The Sn–Sn bond length is 3.09 Å. In the fifth Sn site, Sn is bonded in a 5-coordinate geometry to two equivalent Yb, three equivalent Pt, and one Sn atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pt(NCl2)2 by Materials Project

Pt(NCl2)2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four Pt(NCl2)2 clusters. Pt2+ is bonded in a 6-coordinate geometry to two equivalent N1+ and four Cl1- atoms. Both Pt–N bond lengths are 1.96 Å. There are two shorter (2.35 Å) and two longer (2.62 Å) Pt–Cl bond lengths. N1+ is bonded in an L-shaped geometry to one Pt2+ and one Cl1- atom. The N–Cl bond length is 1.69 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Pt2+ and one N1+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Pt2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdPt(CN)6 by Materials Project

PtCd(CN)6 is alpha Rhenium trioxide-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pt2- is bonded in an octahedral geometry to six equivalent C3+ atoms. All Pt–C bond lengths are 2.02 Å. Cd2+ is bonded in an octahedral geometry to six equivalent N3- atoms. All Cd–N bond lengths are 2.36 Å. C3+ is bonded in a linear geometry to one Pt2- and one N3- atom. The C–N bond length is 1.16 Å. N3- is bonded in a linear geometry to one Cd2+ and one C3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

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↗
DOE OSTI2020

Materials Data on PtAu by Materials Project

PtAu crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Pt2- sites. In the first Pt2- site, Pt2- is bonded to six equivalent Pt2- and six Au2+ atoms to form a mixture of face, edge, and corner-sharing PtPt6Au6 cuboctahedra. All Pt–Pt bond lengths are 2.87 Å. All Pt–Au bond lengths are 2.88 Å. In the second Pt2- site, Pt2- is bonded to ten equivalent Pt2- and six Au2+ atoms to form PtPt10Au6 cuboctahedra that share corners with twelve PtPt6Au6 cuboctahedra, edges with sixteen PtPt6Au6 cuboctahedra, and faces with sixteen equivalent PtPt10Au6 cuboctahedra. There are a spread of Pt–Pt bond distances ranging from 2.87–5.74 Å. All Pt–Au bond lengths are 2.88 Å. There are three inequivalent Au2+ sites. In the first Au2+ site, Au2+ is bonded in a 6-coordinate geometry to six equivalent Pt2- atoms. In the second Au2+ site, Au2+ is bonded in a 6-coordinate geometry to six Pt2- atoms. All Au–Pt bond lengths are 2.88 Å. In the third Au2+ site, Au2+ is bonded in a 6-coordinate geometry to six Pt2- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PrBPt4 by Materials Project

PrPt4B crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Pr3+ sites. In the first Pr3+ site, Pr3+ is bonded in a 12-coordinate geometry to twelve equivalent Pt and six equivalent B3- atoms. All Pr–Pt bond lengths are 3.16 Å. All Pr–B bond lengths are 3.19 Å. In the second Pr3+ site, Pr3+ is bonded in a hexagonal planar geometry to six equivalent Pt atoms. All Pr–Pt bond lengths are 3.19 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 12-coordinate geometry to three equivalent Pr3+ and nine Pt atoms. There are six shorter (2.81 Å) and three longer (3.19 Å) Pt–Pt bond lengths. In the second Pt site, Pt is bonded in an L-shaped geometry to two equivalent Pr3+, two equivalent Pt, and two equivalent B3- atoms. Both Pt–B bond lengths are 2.21 Å. B3- is bonded in a 6-coordinate geometry to three equivalent Pr3+ and six equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeBPt4 by Materials Project

CePt4B crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded in a 12-coordinate geometry to twelve equivalent Pt and six equivalent B3- atoms. All Ce–Pt bond lengths are 3.15 Å. All Ce–B bond lengths are 3.16 Å. In the second Ce3+ site, Ce3+ is bonded in a hexagonal planar geometry to six equivalent Pt atoms. All Ce–Pt bond lengths are 3.16 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 12-coordinate geometry to three equivalent Ce3+ and nine Pt atoms. There are six shorter (2.81 Å) and three longer (3.16 Å) Pt–Pt bond lengths. In the second Pt site, Pt is bonded in a distorted L-shaped geometry to two equivalent Ce3+, two equivalent Pt, and two equivalent B3- atoms. Both Pt–B bond lengths are 2.21 Å. B3- is bonded in a 6-coordinate geometry to three equivalent Ce3+ and six equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdBPt4 by Materials Project

NdPt4B crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Nd3+ sites. In the first Nd3+ site, Nd3+ is bonded in a hexagonal planar geometry to six equivalent Pt atoms. All Nd–Pt bond lengths are 3.17 Å. In the second Nd3+ site, Nd3+ is bonded in a 12-coordinate geometry to twelve equivalent Pt and six equivalent B3- atoms. All Nd–Pt bond lengths are 3.15 Å. All Nd–B bond lengths are 3.17 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 12-coordinate geometry to three equivalent Nd3+ and nine Pt atoms. There are six shorter (2.82 Å) and three longer (3.17 Å) Pt–Pt bond lengths. In the second Pt site, Pt is bonded in an L-shaped geometry to two equivalent Nd3+, two equivalent Pt, and two equivalent B3- atoms. Both Pt–B bond lengths are 2.22 Å. B3- is bonded in a 6-coordinate geometry to three equivalent Nd3+ and six equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaBPt4 by Materials Project

LaPt4B crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a hexagonal planar geometry to six equivalent Pt atoms. All La–Pt bond lengths are 3.20 Å. In the second La3+ site, La3+ is bonded in a 12-coordinate geometry to twelve equivalent Pt and six equivalent B3- atoms. All La–Pt bond lengths are 3.17 Å. All La–B bond lengths are 3.20 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 12-coordinate geometry to three equivalent La3+ and nine Pt atoms. There are six shorter (2.83 Å) and three longer (3.20 Å) Pt–Pt bond lengths. In the second Pt site, Pt is bonded in a distorted L-shaped geometry to two equivalent La3+, two equivalent Pt, and two equivalent B3- atoms. Both Pt–B bond lengths are 2.22 Å. B3- is bonded in a 6-coordinate geometry to three equivalent La3+ and six equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2024

Rh → Sb Interactions Supported by Tris(8-quinolyl)antimony Ligands

The study of ambiphilic systems combining L-type and Z-type ligands within the same construct has emerged as a field of active investigation, especially in the cases of ligands containing a group 13 element as a σ-acceptor for transition metals. (1) Parallel to these developments, several groups have investigated more atypical systems in which the Z-type ligand is a group 15 element. (2) Our contributions to this area have focused on the use of phosphinostibine ligands for the generation of transition metal complexes in which the antimony moiety acts as a Z-type ligand. (1d,3) We have shown that the magnitude of the resulting M → Sb interaction can be readily modulated by the oxidation state of the antimony atom (4) as well as its charge which can be manipulated by abstraction of anionic ligands. (5) Our work has also shown that these effects can be leveraged to enhance the catalytic properties of the transition metal center. (4,5) Some of the simplest systems that we have investigated are those resulting from the reaction of platinum dichloride with the bis- or tris-phosphinostibines ClSb(o-dppp) 2 and Sb(o-dppp) 3 , respectively (o-dppp = o-(Ph 2 P)C 6 H 4 ). These reactions proceed by oxidative insertion of the stibine into a Pt- Cl bond to produce complexes A and B, (6) respectively (Chart 1). Reasoning that the properties of these complexes may also be influenced by the nature of the L-type buttresses, we have now questioned whether stibines featuring nitrogen donor ligands could also display the redox noninnocence of their phosphine counterparts and support the formation of such complexes. Following up on some of our work with ambiphilic tellurium-quinoline ligands, (7) we now report on the reaction of tris-(8-quinolyl)stibines (8) toward (MeCN) 3 RhCl 3 .

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2024

Unveiling the Stability of Encapsulated Pt Catalysts Using Nanocrystals and Atomic Layer Deposition

Platinum exhibits desirable catalytic properties, but it is scarce and expensive. Optimizing its use in key applications such as emission control catalysis is important to reduce our reliance on such a rare element. Supported Pt nanoparticles (NPs) used in emission control systems deactivate over time because of particle growth in sintering processes. Here, in this work, we shed light on the stability against sintering of Pt NPs supported on and encapsulated in Al 2 O 3 using a combination of nanocrystal catalysts and atomic layer deposition (ALD) techniques. We find that small amounts of alumina overlayers created by ALD on preformed Pt NPs can stabilize supported Pt catalysts, significantly reducing deactivation caused by sintering, as previously observed by others. Combining theoretical and experimental insights, we correlate this behavior to the decreased propensity of oxidized Pt species to undergo Ostwald ripening phenomena because of the physical barrier imposed by the alumina overlayers. Furthermore, we find that highly stable catalysts can present an abundance of under-coordinated Pt sites after restructuring of both Pt particles and alumina overlayers at a high temperature (800 °C) in C 3 H 6 oxidation conditions. The enhanced stability significantly improves the Pt utilization efficiency after accelerated aging treatments, with encapsulated Pt catalysts reaching reaction rates more than two times greater than those of a control supported Pt catalyst.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on In3Pt4 by Materials Project

Pt4In3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Pt2- sites. In the first Pt2- site, Pt2- is bonded in a 6-coordinate geometry to four Pt2- and six In+2.67+ atoms. There are a spread of Pt–Pt bond distances ranging from 2.90–3.07 Å. There are a spread of Pt–In bond distances ranging from 2.71–2.94 Å. In the second Pt2- site, Pt2- is bonded in a 6-coordinate geometry to four Pt2- and six In+2.67+ atoms. There are a spread of Pt–Pt bond distances ranging from 2.92–2.97 Å. There are a spread of Pt–In bond distances ranging from 2.76–2.88 Å. In the third Pt2- site, Pt2- is bonded in a 12-coordinate geometry to six Pt2- and six In+2.67+ atoms. There are a spread of Pt–Pt bond distances ranging from 2.78–3.06 Å. There are a spread of Pt–In bond distances ranging from 2.77–3.13 Å. In the fourth Pt2- site, Pt2- is bonded in a 6-coordinate geometry to two Pt2- and six In+2.67+ atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Pt–Pt bond lengths. There are a spread of Pt–In bond distances ranging from 2.73–2.92 Å. In the fifth Pt2- site, Pt2- is bonded to six Pt2- and six In+2.67+ atoms to form distorted PtIn6Pt6 cuboctahedra that share edges with two equivalent InPt7 hexagonal pyramids. There are one shorter (2.93 Å) and one longer (2.96 Å) Pt–Pt bond lengths. There are a spread of Pt–In bond distances ranging from 2.86–3.15 Å. In the sixth Pt2- site, Pt2- is bonded in a 6-coordinate geometry to five Pt2- and six In+2.67+ atoms. The Pt–Pt bond length is 3.03 Å. There are a spread of Pt–In bond distances ranging from 2.80–3.00 Å. In the seventh Pt2- site, Pt2- is bonded in a 12-coordinate geometry to five Pt2- and seven In+2.67+ atoms. There are a spread of Pt–Pt bond distances ranging from 2.89–3.11 Å. There are a spread of Pt–In bond distances ranging from 2.74–3.22 Å. In the eighth Pt2- site, Pt2- is bonded in a 12-coordinate geometry to five Pt2- and seven In+2.67+ atoms. There are a spread of Pt–Pt bond distances ranging from 2.85–2.96 Å. There are a spread of Pt–In bond distances ranging from 2.78–3.28 Å. In the ninth Pt2- site, Pt2- is bonded in a 6-coordinate geometry to five Pt2- and six In+2.67+ atoms. There are two shorter (2.93 Å) and one longer (3.00 Å) Pt–Pt bond lengths. There are a spread of Pt–In bond distances ranging from 2.79–3.00 Å. In the tenth Pt2- site, Pt2- is bonded in a 6-coordinate geometry to five Pt2- and six In+2.67+ atoms. There are a spread of Pt–In bond distances ranging from 2.77–2.95 Å. In the eleventh Pt2- site, Pt2- is bonded in a 6-coordinate geometry to five Pt2- and six In+2.67+ atoms. There are a spread of Pt–In bond distances ranging from 2.70–2.93 Å. In the twelfth Pt2- site, Pt2- is bonded in a 6-coordinate geometry to four Pt2- and six In+2.67+ atoms. There are a spread of Pt–In bond distances ranging from 2.71–2.94 Å. There are nine inequivalent In+2.67+ sites. In the first In+2.67+ site, In+2.67+ is bonded in a 8-coordinate geometry to eight Pt2- atoms. In the second In+2.67+ site, In+2.67+ is bonded in a 9-coordinate geometry to nine Pt2- atoms. In the third In+2.67+ site, In+2.67+ is bonded in a 8-coordinate geometry to eight Pt2- atoms. In the fourth In+2.67+ site, In+2.67+ is bonded in a 8-coordinate geometry to eight Pt2- atoms. In the fifth In+2.67+ site, In+2.67+ is bonded in a 9-coordinate geometry to nine Pt2- atoms. In the sixth In+2.67+ site, In+2.67+ is bonded in a 10-coordinate geometry to ten Pt2- atoms. In the seventh In+2.67+ site, In+2.67+ is bonded in a 7-coordinate geometry to seven Pt2- atoms. In the eighth In+2.67+ site, In+2.67+ is bonded in a 8-coordinate geometry to eight Pt2- atoms. In the ninth In+2.67+ site, In+2.67+ is bonded to seven Pt2- atoms to form distorted InPt7 hexagonal pyramids that share edges with two equivalent PtIn6Pt6 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnPt by Materials Project

PtSn crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pt2- is bonded in a 6-coordinate geometry to two equivalent Pt2- and six equivalent Sn2+ atoms. Both Pt–Pt bond lengths are 2.76 Å. All Pt–Sn bond lengths are 2.78 Å. Sn2+ is bonded in a 6-coordinate geometry to six equivalent Pt2- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce2CdPt2 by Materials Project

Ce2Pt2Cd crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ce is bonded in a 6-coordinate geometry to six equivalent Pt and four equivalent Cd atoms. There are two shorter (2.90 Å) and four longer (3.04 Å) Ce–Pt bond lengths. All Ce–Cd bond lengths are 3.47 Å. Pt is bonded in a 9-coordinate geometry to six equivalent Ce and two equivalent Cd atoms. Both Pt–Cd bond lengths are 3.08 Å. Cd is bonded to eight equivalent Ce and four equivalent Pt atoms to form a mixture of face and corner-sharing CdCe8Pt4 cuboctahedra.

36 MATERIALS SCIENCE↗