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Materials Data on TmCdNi4 by Materials Project

TmNi4Cd is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to twelve equivalent Ni and four equivalent Cd atoms. All Tm–Ni bond lengths are 2.90 Å. All Tm–Cd bond lengths are 3.02 Å. Ni is bonded to three equivalent Tm, six equivalent Ni, and three equivalent Cd atoms to form a mixture of corner, edge, and face-sharing NiTm3Cd3Ni6 cuboctahedra. There are three shorter (2.45 Å) and three longer (2.48 Å) Ni–Ni bond lengths. All Ni–Cd bond lengths are 2.89 Å. Cd is bonded in a 4-coordinate geometry to four equivalent Tm and twelve equivalent Ni atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ti2CdO6 by Materials Project

Ti2CdO6 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Ti sites. In the first Ti site, Ti is bonded to four O atoms to form corner-sharing TiO4 tetrahedra. There are a spread of Ti–O bond distances ranging from 1.75–1.93 Å. In the second Ti site, Ti is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Ti–O bond distances ranging from 1.91–2.17 Å. In the third Ti site, Ti is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Ti–O bond distances ranging from 1.91–2.17 Å. In the fourth Ti site, Ti is bonded to four O atoms to form corner-sharing TiO4 tetrahedra. There are a spread of Ti–O bond distances ranging from 1.75–1.93 Å. There are two inequivalent Cd sites. In the first Cd site, Cd is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Cd–O bond distances ranging from 2.25–2.66 Å. In the second Cd site, Cd is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Cd–O bond distances ranging from 2.26–2.66 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a 4-coordinate geometry to two Ti, one Cd, and one O atom. The O–O bond length is 1.45 Å. In the second O site, O is bonded in a distorted T-shaped geometry to two Ti and one Cd atom. In the third O site, O is bonded in a 3-coordinate geometry to one Ti, one Cd, and one O atom. The O–O bond length is 1.45 Å. In the fourth O site, O is bonded in a distorted bent 150 degrees geometry to two Ti and one Cd atom. In the fifth O site, O is bonded in a 3-coordinate geometry to two Ti and one Cd atom. In the sixth O site, O is bonded to two Ti and two Cd atoms to form corner-sharing OTi2Cd2 tetrahedra. In the seventh O site, O is bonded to two Ti and two Cd atoms to form corner-sharing OTi2Cd2 tetrahedra. In the eighth O site, O is bonded in a distorted T-shaped geometry to two Ti and one Cd atom. In the ninth O site, O is bonded in a distorted bent 150 degrees geometry to two Ti and one Cd atom. In the tenth O site, O is bonded in a 3-coordinate geometry to one Ti, one Cd, and one O atom. In the eleventh O site, O is bonded in a distorted T-shaped geometry to two Ti and one Cd atom. In the twelfth O site, O is bonded in a 4-coordinate geometry to two Ti, one Cd, and one O atom.

36 MATERIALS SCIENCE↗

Materials Data on CaCdPd by Materials Project

CaPdCd crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ca is bonded in a 5-coordinate geometry to five equivalent Pd and six equivalent Cd atoms. There are a spread of Ca–Pd bond distances ranging from 3.10–3.15 Å. There are a spread of Ca–Cd bond distances ranging from 3.36–3.48 Å. Pd is bonded in a 9-coordinate geometry to five equivalent Ca and four equivalent Cd atoms. There are one shorter (2.79 Å) and three longer (2.85 Å) Pd–Cd bond lengths. Cd is bonded in a 4-coordinate geometry to six equivalent Ca and four equivalent Pd atoms.

36 MATERIALS SCIENCE↗

Materials Data on MgCd2(ClO2)6 by Materials Project

MgCd2(O2Cl3)2(O2)4 crystallizes in the orthorhombic Fdd2 space group. The structure is two-dimensional and consists of thirty-two hydrogen peroxide molecules and four MgCd2(O2Cl3)2 sheets oriented in the (0, 0, 1) direction. In each MgCd2(O2Cl3)2 sheet, Mg is bonded in a tetrahedral geometry to four O atoms. There are two shorter (1.96 Å) and two longer (2.04 Å) Mg–O bond lengths. Cd is bonded in a 4-coordinate geometry to one O and three Cl atoms. The Cd–O bond length is 2.28 Å. There are a spread of Cd–Cl bond distances ranging from 2.48–2.59 Å. There are two inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Mg and one Cl atom. The O–Cl bond length is 1.65 Å. In the second O site, O is bonded in a distorted trigonal non-coplanar geometry to one Mg, one Cd, and one Cl atom. The O–Cl bond length is 1.71 Å. There are three inequivalent Cl sites. In the first Cl site, Cl is bonded in a water-like geometry to one Cd and one O atom. In the second Cl site, Cl is bonded in a bent 120 degrees geometry to two equivalent Cd atoms. In the third Cl site, Cl is bonded in a distorted single-bond geometry to one O atom.

36 MATERIALS SCIENCE↗

Materials Data on NaCd4(GeO3)5 by Materials Project

NaCd4(GeO3)5 is Esseneite-like structured and crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Na is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Na–O bond distances ranging from 2.33–2.86 Å. There are four inequivalent Cd sites. In the first Cd site, Cd is bonded to six O atoms to form CdO6 octahedra that share corners with six GeO4 tetrahedra and edges with three CdO6 octahedra. There are a spread of Cd–O bond distances ranging from 2.30–2.44 Å. In the second Cd site, Cd is bonded to six O atoms to form CdO6 octahedra that share corners with six GeO4 tetrahedra and edges with four CdO6 octahedra. There are a spread of Cd–O bond distances ranging from 2.27–2.46 Å. In the third Cd site, Cd is bonded to six O atoms to form CdO6 octahedra that share corners with six GeO4 tetrahedra and edges with three CdO6 octahedra. There are a spread of Cd–O bond distances ranging from 2.27–2.38 Å. In the fourth Cd site, Cd is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Cd–O bond distances ranging from 2.21–2.77 Å. There are five inequivalent Ge sites. In the first Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with three CdO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 44–63°. There are a spread of Ge–O bond distances ranging from 1.75–1.83 Å. In the second Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with four CdO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 41–64°. There are a spread of Ge–O bond distances ranging from 1.75–1.81 Å. In the third Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with four CdO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 44–64°. There are a spread of Ge–O bond distances ranging from 1.76–1.82 Å. In the fourth Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with three CdO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 46–65°. There are a spread of Ge–O bond distances ranging from 1.75–1.81 Å. In the fifth Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with four CdO6 octahedra and corners with two GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 51–59°. There are a spread of Ge–O bond distances ranging from 1.74–1.84 Å. There are fifteen inequivalent O sites. In the first O site, O is bonded in a distorted trigonal non-coplanar geometry to one Na and two Ge atoms. In the second O site, O is bonded to three Cd and one Ge atom to form a mixture of distorted corner and edge-sharing OCd3Ge tetrahedra. In the third O site, O is bonded to three Cd and one Ge atom to form a mixture of distorted corner and edge-sharing OCd3Ge tetrahedra. In the fourth O site, O is bonded in a 4-coordinate geometry to two equivalent Na and two Ge atoms. In the fifth O site, O is bonded in a 4-coordinate geometry to three Cd and one Ge atom. In the sixth O site, O is bonded to three Cd and one Ge atom to form a mixture of distorted corner and edge-sharing OCd3Ge tetrahedra. In the seventh O site, O is bonded in a bent 120 degrees geometry to two Ge atoms. In the eighth O site, O is bonded in a 2-coordinate geometry to one Na, one Cd, and two Ge atoms. In the ninth O site, O is bonded in a distorted trigonal planar geometry to two Cd and one Ge atom. In the tenth O site, O is bonded in a distorted bent 120 degrees geometry to one Cd and two Ge atoms. In the eleventh O site, O is bonded in a distorted T-shaped geometry to one Na, one Cd, and one Ge atom. In the twelfth O site, O is bonded in a distorted rectangular see-saw-like geometry to one Na, two Cd, and one Ge atom. In the thirteenth O site, O is bonded in a distorted trigonal non-coplanar geometry to two Cd and one Ge atom. In the fourteenth O site, O is bonded in a distorted trigonal non-coplanar geometry to two Cd and one Ge atom. In the fifteenth O site, O is bonded in a distorted T-shaped geometry to one Na, one Cd, and one Ge atom.

36 MATERIALS SCIENCE↗

Growth of CdZnTe Crystals the Bridgman Technique with Controlled Overpressures of Cd

Cd(1-x)Zn(x)Te crystals with x = 0.15 and 0.20, were grown in this study by closed-ampoule directional solidification (Bridgman) technique with a controlled Cd overpressure. The growth ampoule was made of quartz with inner diameter from 20 to 40 mm and a tapered length of 2.5 cm at the growth tip. Both unseeded and seeded growths were performed with total material charges up to 400 g. After the loading of starting CdZnTe material, a typical amount of 2 g of Cd was also loaded inside a Cd reservoir basket, which was attached beneath the seal-off cup. The ampoule was sealed off under a vacuum below lxl0(exp -5) Torr. The sealed ampoule was placed inside a 4-zone Bridgman furnace - a Cd reservoir zone with a heat-pipe furnace liner on the top, followed by a hot zone, a booster heating zone and a cold zone at the bottom. The Cd zone was typically 300 to 400 C below the hot zone setting. High resistivity material has been obtained without any intentional dopants but has been reproducibly obtained with In doping. The crystalline and the electrical properties of the crystals will be reported.

Su, Ching-Hu↗

Materials Data on Ba4Cd11Ge12 by Materials Project

Ba4Cd11Ge12 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded in a 8-coordinate geometry to eight equivalent Cd and twelve equivalent Ge atoms. All Ba–Cd bond lengths are 3.70 Å. All Ba–Ge bond lengths are 3.81 Å. In the second Ba site, Ba is bonded in a 12-coordinate geometry to four equivalent Cd and eight equivalent Ge atoms. All Ba–Cd bond lengths are 4.12 Å. All Ba–Ge bond lengths are 3.86 Å. There are two inequivalent Cd sites. In the first Cd site, Cd is bonded in a 3-coordinate geometry to one Ba, one Cd, and three equivalent Ge atoms. The Cd–Cd bond length is 2.68 Å. All Cd–Ge bond lengths are 2.75 Å. In the second Cd site, Cd is bonded to four equivalent Ba and four equivalent Ge atoms to form a mixture of edge and corner-sharing CdBa4Ge4 tetrahedra. All Cd–Ge bond lengths are 2.79 Å. Ge is bonded in a 4-coordinate geometry to three Ba, three Cd, and one Ge atom. The Ge–Ge bond length is 2.45 Å.

36 MATERIALS SCIENCE↗

Materials Data on Cd5(NO8)2 by Materials Project

Cd5(NO8)2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of two Cd5(NO8)2 sheets oriented in the (1, 0, 0) direction. there are three inequivalent Cd sites. In the first Cd site, Cd is bonded to six O atoms to form distorted corner-sharing CdO6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are two shorter (2.04 Å) and four longer (2.57 Å) Cd–O bond lengths. In the second Cd site, Cd is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Cd–O bond distances ranging from 2.21–2.56 Å. In the third Cd site, Cd is bonded to six O atoms to form distorted CdO6 octahedra that share corners with two equivalent CdO6 octahedra and a cornercorner with one OCd3O tetrahedra. The corner-sharing octahedral tilt angles are 49°. There are a spread of Cd–O bond distances ranging from 2.28–2.67 Å. N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.23 Å) and two longer (1.30 Å) N–O bond length. There are six inequivalent O sites. In the first O site, O is bonded to three Cd and one O atom to form OCd3O tetrahedra that share a cornercorner with one CdO6 octahedra and an edgeedge with one OCd3O tetrahedra. The corner-sharing octahedral tilt angles are 58°. The O–O bond length is 1.33 Å. In the second O site, O is bonded in a 4-coordinate geometry to three Cd and one O atom. The O–O bond length is 1.39 Å. In the third O site, O is bonded in a trigonal non-coplanar geometry to three Cd atoms. In the fourth O site, O is bonded in an L-shaped geometry to one Cd and one N atom. In the fifth O site, O is bonded in a single-bond geometry to one N atom. In the sixth O site, O is bonded in a bent 120 degrees geometry to one Cd and one O atom.

36 MATERIALS SCIENCE↗

Structural Asymmetry and Chiral-Induced Spin Selectivity in Chiral Palladium-Halide Semiconductors

Chiral Pb-free metal-halide semiconductors (MHSs) have attracted considerable attention in the field of spintronics due to various interesting spin-related properties and chiral-induced spin selectivity (CISS) effect. Despite their excellent chemical and structural tunability, the material scope and crystal structure of Pb-free chiral MHSs exhibiting the CISS effect are still limited; chiral MHSs that have metal-halide structures of octahedra and tetrahedra are only reported. Here, we report a new class of chiral MHSs, of which palladium (Pd)-halides are formed in 1D square-pyramidal structures or 0D square-planar structures, with a general formula of ((R/S-MBA) 2 PdBr 4 ) 1-x ((R/S-MBA) 2 PdCl 4 ) x (MBA = methylbenzylammonium; x = 0, 0.25, 0.5, 0.75, and 1) for the first time. The crystals adopt the 1D helical chain of Pd-halide square-pyramid (for x = 0, 0.25, 0.5, and 0.75) and 0D structure of Pd-halide square-plane (for x = 1). All the Pd-halides are distorted by the interaction between the halide and the chiral organic ammonium and arranged in a noncentrosymmetric position. Circular dichroism (CD) for ((R/S-MBA) 2 PdBr 4 ) 1-x ((R/S-MBA) 2 PdCl 4 ) x indicates that chirality was transferred from chiral organic ammonium to Pd-halide inorganics. ((R-MBA) 2 PdBr 4 ) 1-x ((R-MBA) 2 PdCl 4 ) x (x = 0, 0.25, 0.5, and 0.75) shows a distortion index of 0.127-0.128, which is the highest value among the previously reported chiral MHSs to the best of our knowledge. We also find that (R/S-MBA) 2 Pd(Br 1-x Cl x ) 4 crystals grow along the out-of-plane direction during spin coating and have high c-axis orientation and crystallinity, and (R/S-MBA) 2 Pd(Br 1-x Cl x ) 4 (x = 0 and 0.5) crystals exhibit a CISS effect in polycrystalline bulk films. In conclusion, these results demonstrate the possibility of a new metal-halide series with square-planar structures or square-pyramidal structures for future spintronic applications.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

Vectorial Charge Transfer across Bipolar Membrane Loaded with CdS and Au Nanoparticles

Bipolar membranes (BPMs) which consist of a cation exchange layer (CEL) and anion exchange layer (AEL) are quite effective as membranes in gas phase electrolyzers. However, such membranes can also serve as a host to embed photocatalysts and electrocatalysts. By selectively exchanging cations with Cd 2+ and anions with AuCl 4 – , we were able to synthesize CdS and Au nanoparticles in CEL and AEL layers, respectively, through sequential chemical and photocatalytic reactions. Reacting Cd 2+ with thioacetamide formed the CdS nanoparticles in CEL. The photogenerated electrons from CdS were then used to reduce AuCl4– in an H-cell configuration to produce Au nanoparticles in AEL and thus prepare a photocatalytically active BPM film (referred to as a CdS/BPM/Au film). Such a concerted design of BPM allows “vectorial” electron transfer between two layers of BPM leading to its transfer to an acceptor molecule (methyl viologen) in solution. Designing photocatalytically active BPM and understanding the vectorial electron flow between two separate ion-selective layers offer new opportunities in water splitting and CO 2 reduction.

13 HYDRO ENERGY↗

Giant Apparent Optical Circular Dichroism in Thin Films of Bismuth-Based Hybrid Organic-Inorganic Metal Halide Semiconductor Through Preferred Orientation

Introducing chirality into organic/inorganic hybrid materials can impart chiroptical properties such as circular dichroism. The ability to tune chiroptical properties in self-assembled materials can have important implications for spintronic and optoelectronic applications. Here, a chiral organic cation, (R/S)-4-methoxy-a-methylbenzylammonium, is incorporated to synthesize the bismuth-based hybrid organic-inorganic metal halide semiconductor, (R/S-MeOMePMA)BiI4. Thin films of this Bi-based compound demonstrate large chiroptical responses, with circular dichroism anisotropy (gCD) values up to ˜0.1, close to the highest value observed in another chiral metal-halide semiconductor, (R-MBA2CuCl4). Detailed investigation reveals that this large gCD in (R/S-MeOMePMA)BiI4 is caused by the apparent CD effect. Careful selection of deposition conditions and the concomitant thin-film orientation enables the control of gCD, with maximum value observed when its thin film has a well-crystallized preferred (001) orientation parallel to the substrate. The results support a growing body of evidence that low symmetry plays an important role in achieving unusually large gCD in these chiral metal-halide materials and provides design rules for achieving large chiroptical response via morphology control.

chiroptic response↗

Materials Data on Cd12Ge17(B4O29)2 by Materials Project

Cd12Ge17B8O58 crystallizes in the tetragonal P-4 space group. The structure is three-dimensional. there are three inequivalent Cd sites. In the first Cd site, Cd is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Cd–O bond distances ranging from 2.34–2.55 Å. In the second Cd site, Cd is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Cd–O bond distances ranging from 2.29–2.71 Å. In the third Cd site, Cd is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Cd–O bond distances ranging from 2.29–2.62 Å. There are two inequivalent B sites. In the first B site, B is bonded to four O atoms to form BO4 tetrahedra that share a cornercorner with one BO4 tetrahedra and corners with two GeO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.42–1.54 Å. In the second B site, B is bonded to four O atoms to form BO4 tetrahedra that share a cornercorner with one BO4 tetrahedra and corners with two GeO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.41–1.56 Å. There are five inequivalent Ge sites. In the first Ge site, Ge is bonded to four equivalent O atoms to form GeO4 tetrahedra that share corners with four equivalent BO4 tetrahedra. All Ge–O bond lengths are 1.77 Å. In the second Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra, a cornercorner with one BO4 tetrahedra, and a cornercorner with one GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–58°. There is three shorter (1.78 Å) and one longer (1.81 Å) Ge–O bond length. In the third Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two BO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–60°. There is one shorter (1.77 Å) and three longer (1.78 Å) Ge–O bond length. In the fourth Ge site, Ge is bonded to four O atoms to form GeO4 tetrahedra that share corners with two equivalent GeO6 octahedra and corners with two equivalent GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 55–60°. There are a spread of Ge–O bond distances ranging from 1.77–1.80 Å. In the fifth Ge site, Ge is bonded to six O atoms to form corner-sharing GeO6 octahedra. There are a spread of Ge–O bond distances ranging from 1.89–1.93 Å. There are fifteen inequivalent O sites. In the first O site, O is bonded in a 4-coordinate geometry to two Cd and two B atoms. In the second O site, O is bonded in a distorted single-bond geometry to three Cd and one B atom. In the third O site, O is bonded in a distorted trigonal planar geometry to one Cd and two Ge atoms. In the fourth O site, O is bonded in a trigonal planar geometry to one Cd and two Ge atoms. In the fifth O site, O is bonded in a distorted trigonal planar geometry to one Cd and two Ge atoms. In the sixth O site, O is bonded in a trigonal planar geometry to one Cd and two Ge atoms. In the seventh O site, O is bonded in a 2-coordinate geometry to two Cd, one B, and one Ge atom. In the eighth O site, O is bonded in a bent 120 degrees geometry to two equivalent Ge atoms. In the ninth O site, O is bonded in a distorted bent 120 degrees geometry to two Cd, one B, and one Ge atom. In the tenth O site, O is bonded in a 2-coordinate geometry to two equivalent Cd, one B, and one Ge atom. In the eleventh O site, O is bonded in a distorted single-bond geometry to three Cd and one B atom. In the twelfth O site, O is bonded in a bent 120 degrees geometry to two equivalent Ge atoms. In the thirteenth O site, O is bonded in a distorted bent 120 degrees geometry to one Cd and two Ge atoms. In the fourteenth O site, O is bonded in a 3-coordinate geometry to one Cd, one B, and one Ge atom. In the fifteenth O site, O is bonded in a 2-coordinate geometry to one Cd and two Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ca11(Cd9Au2)2 by Materials Project

Ca11(Au2Cd9)2 crystallizes in the tetragonal I4_1md space group. The structure is three-dimensional. there are seven inequivalent Ca sites. In the first Ca site, Ca is bonded in a 5-coordinate geometry to three Au and four Cd atoms. There are one shorter (3.11 Å) and two longer (3.25 Å) Ca–Au bond lengths. There are two shorter (3.25 Å) and two longer (3.75 Å) Ca–Cd bond lengths. In the second Ca site, Ca is bonded in a 5-coordinate geometry to three Au and four Cd atoms. There are two shorter (3.13 Å) and one longer (3.25 Å) Ca–Au bond lengths. There are two shorter (3.32 Å) and two longer (3.76 Å) Ca–Cd bond lengths. In the third Ca site, Ca is bonded in a 12-coordinate geometry to twelve Cd atoms. There are a spread of Ca–Cd bond distances ranging from 3.45–3.61 Å. In the fourth Ca site, Ca is bonded in a distorted single-bond geometry to one Au and four Cd atoms. The Ca–Au bond length is 3.02 Å. There are two shorter (3.50 Å) and two longer (3.59 Å) Ca–Cd bond lengths. In the fifth Ca site, Ca is bonded in a distorted single-bond geometry to one Au and four Cd atoms. The Ca–Au bond length is 3.03 Å. There are two shorter (3.50 Å) and two longer (3.60 Å) Ca–Cd bond lengths. In the sixth Ca site, Ca is bonded in a 4-coordinate geometry to two Au and three Cd atoms. There are one shorter (3.15 Å) and one longer (3.21 Å) Ca–Au bond lengths. There are two shorter (3.26 Å) and one longer (3.63 Å) Ca–Cd bond lengths. In the seventh Ca site, Ca is bonded in a 2-coordinate geometry to three Au and eight Cd atoms. There are two shorter (3.16 Å) and one longer (3.31 Å) Ca–Au bond lengths. There are a spread of Ca–Cd bond distances ranging from 3.34–3.68 Å. There are three inequivalent Au sites. In the first Au site, Au is bonded in a 9-coordinate geometry to five Ca and four equivalent Cd atoms. All Au–Cd bond lengths are 2.92 Å. In the second Au site, Au is bonded in a 9-coordinate geometry to five Ca and four equivalent Cd atoms. All Au–Cd bond lengths are 2.92 Å. In the third Au site, Au is bonded in a 9-coordinate geometry to five Ca and four Cd atoms. There are two shorter (2.95 Å) and two longer (2.96 Å) Au–Cd bond lengths. There are six inequivalent Cd sites. In the first Cd site, Cd is bonded to seven Ca and five Cd atoms to form a mixture of face, edge, and corner-sharing CdCa7Cd5 cuboctahedra. There are a spread of Cd–Cd bond distances ranging from 2.91–3.09 Å. In the second Cd site, Cd is bonded to seven Ca and five Cd atoms to form a mixture of face, edge, and corner-sharing CdCa7Cd5 cuboctahedra. There are a spread of Cd–Cd bond distances ranging from 2.93–3.12 Å. In the third Cd site, Cd is bonded in a 12-coordinate geometry to two Ca, two Au, and one Cd atom. In the fourth Cd site, Cd is bonded in a 9-coordinate geometry to five Ca and four Cd atoms. All Cd–Cd bond lengths are 2.99 Å. In the fifth Cd site, Cd is bonded in a distorted single-bond geometry to two Ca, one Au, and two Cd atoms. In the sixth Cd site, Cd is bonded in a 1-coordinate geometry to one Ca, one Au, and three Cd atoms.

36 MATERIALS SCIENCE↗

Materials Data on Cd(CoO2)2 by Materials Project

Cd(CoO2)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Co3+ sites. In the first Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with five CdO6 pentagonal pyramids, edges with six CoO6 octahedra, an edgeedge with one CdO6 pentagonal pyramid, and a faceface with one CdO6 pentagonal pyramid. There are a spread of Co–O bond distances ranging from 1.90–2.15 Å. In the second Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with five CdO6 pentagonal pyramids, edges with six CoO6 octahedra, an edgeedge with one CdO6 pentagonal pyramid, and a faceface with one CdO6 pentagonal pyramid. There are a spread of Co–O bond distances ranging from 1.90–2.14 Å. In the third Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with five CdO6 pentagonal pyramids, edges with six CoO6 octahedra, an edgeedge with one CdO6 pentagonal pyramid, and a faceface with one CdO6 pentagonal pyramid. There are a spread of Co–O bond distances ranging from 1.90–2.14 Å. In the fourth Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with five CdO6 pentagonal pyramids, edges with six CoO6 octahedra, an edgeedge with one CdO6 pentagonal pyramid, and a faceface with one CdO6 pentagonal pyramid. There are a spread of Co–O bond distances ranging from 1.90–2.15 Å. In the fifth Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CdO6 pentagonal pyramids, edges with six CoO6 octahedra, and edges with two CdO6 pentagonal pyramids. There are a spread of Co–O bond distances ranging from 1.99–2.07 Å. In the sixth Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CdO6 pentagonal pyramids, edges with six CoO6 octahedra, and edges with two CdO6 pentagonal pyramids. There are a spread of Co–O bond distances ranging from 1.99–2.07 Å. In the seventh Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CdO6 pentagonal pyramids, edges with six CoO6 octahedra, and edges with two CdO6 pentagonal pyramids. There are a spread of Co–O bond distances ranging from 1.99–2.07 Å. In the eighth Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four CdO6 pentagonal pyramids, edges with six CoO6 octahedra, and edges with two CdO6 pentagonal pyramids. There are a spread of Co–O bond distances ranging from 1.99–2.07 Å. There are four inequivalent Cd2+ sites. In the first Cd2+ site, Cd2+ is bonded to six O2- atoms to form distorted CdO6 pentagonal pyramids that share corners with twelve CoO6 octahedra, edges with two equivalent CdO6 pentagonal pyramids, and faces with two CoO6 octahedra. The corner-sharing octahedra tilt angles range from 44–53°. There are a spread of Cd–O bond distances ranging from 2.34–2.41 Å. In the second Cd2+ site, Cd2+ is bonded to six O2- atoms to form distorted CdO6 pentagonal pyramids that share corners with six CoO6 octahedra, edges with six CoO6 octahedra, and edges with two equivalent CdO6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 4–17°. There are a spread of Cd–O bond distances ranging from 2.31–2.41 Å. In the third Cd2+ site, Cd2+ is bonded to six O2- atoms to form distorted CdO6 pentagonal pyramids that share corners with six CoO6 octahedra, edges with six CoO6 octahedra, and edges with two equivalent CdO6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 4–18°. There are a spread of Cd–O bond distances ranging from 2.30–2.42 Å. In the fourth Cd2+ site, Cd2+ is bonded to six O2- atoms to form distorted CdO6 pentagonal pyramids that share corners with twelve CoO6 octahedra, edges with two equivalent CdO6 pentagonal pyramids, and faces with two CoO6 octahedra. The corner-sharing octahedra tilt angles range from 44–53°. There are a spread of Cd–O bond distances ranging from 2.34–2.40 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the second O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the third O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the fourth O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Co3+ and one Cd2+ atom. In the sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Co3+ and one Cd2+ atom. In the seventh O2- site, O2- is bonded to three Co3+ and one Cd2+ atom to form OCdCo3 trigonal pyramids that share corners with four OCd2Co3 trigonal bipyramids, corners with three OCdCo3 trigonal pyramids, and edges with four OCd2Co3 trigonal bipyramids. In the eighth O2- site, O2- is bonded to three Co3+ and one Cd2+ atom to form OCdCo3 trigonal pyramids that share corners with four OCd2Co3 trigonal bipyramids, corners with three OCdCo3 trigonal pyramids, and edges with four OCd2Co3 trigonal bipyramids. In the ninth O2- site, O2- is bonded to three Co3+ and one Cd2+ atom to form distorted OCdCo3 trigonal pyramids that share corners with four OCd2Co3 trigonal bipyramids, corners with three OCdCo3 trigonal pyramids, and edges with four OCd2Co3 trigonal bipyramids. In the tenth O2- site, O2- is bonded to three Co3+ and one Cd2+ atom to form OCdCo3 trigonal pyramids that share corners with four OCd2Co3 trigonal bipyramids, corners with three OCdCo3 trigonal pyramids, and edges with four OCd2Co3 trigonal bipyramids. In the eleventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Co3+ and one Cd2+ atom. In the twelfth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Co3+ and one Cd2+ atom. In the thirteenth O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the fourteenth O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the fifteenth O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids. In the sixteenth O2- site, O2- is bonded to three Co3+ and two Cd2+ atoms to form OCd2Co3 trigonal bipyramids that share corners with five OCd2Co3 trigonal bipyramids, corners with two OCdCo3 trigonal pyramids, edges with four OCd2Co3 trigonal bipyramids, and edges with two OCdCo3 trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Gd(Cd10Ni)2 by Materials Project

Gd(NiCd10)2 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Gd is bonded in a 4-coordinate geometry to sixteen Cd atoms. There are four shorter (3.42 Å) and twelve longer (3.45 Å) Gd–Cd bond lengths. Ni is bonded to twelve Cd atoms to form NiCd12 cuboctahedra that share corners with six equivalent NiCd12 cuboctahedra, edges with eighteen equivalent CdGdCd10Ni cuboctahedra, and faces with six equivalent CdGdCd10Ni cuboctahedra. There are six shorter (2.80 Å) and six longer (3.10 Å) Ni–Cd bond lengths. There are three inequivalent Cd sites. In the first Cd site, Cd is bonded in a distorted linear geometry to two equivalent Ni and ten Cd atoms. There are a spread of Cd–Cd bond distances ranging from 2.98–3.13 Å. In the second Cd site, Cd is bonded to one Gd, one Ni, and ten Cd atoms to form CdGdCd10Ni cuboctahedra that share corners with fifteen equivalent CdGdCd10Ni cuboctahedra, edges with two equivalent CdGdCd10Ni cuboctahedra, edges with three equivalent NiCd12 cuboctahedra, a faceface with one NiCd12 cuboctahedra, and faces with fifteen equivalent CdGdCd10Ni cuboctahedra. There are a spread of Cd–Cd bond distances ranging from 2.90–3.35 Å. In the third Cd site, Cd is bonded in a distorted linear geometry to two equivalent Gd and twelve equivalent Cd atoms.

36 MATERIALS SCIENCE↗

Materials Data on Y(Cd10Ni)2 by Materials Project

YNi2Cd20 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Y is bonded in a 4-coordinate geometry to sixteen Cd atoms. There are four shorter (3.42 Å) and twelve longer (3.46 Å) Y–Cd bond lengths. Ni is bonded to twelve Cd atoms to form NiCd12 cuboctahedra that share corners with six equivalent NiCd12 cuboctahedra, edges with eighteen equivalent CdYCd10Ni cuboctahedra, and faces with six equivalent CdYCd10Ni cuboctahedra. There are six shorter (2.80 Å) and six longer (3.09 Å) Ni–Cd bond lengths. There are three inequivalent Cd sites. In the first Cd site, Cd is bonded in a distorted linear geometry to two equivalent Ni and ten Cd atoms. There are a spread of Cd–Cd bond distances ranging from 2.97–3.12 Å. In the second Cd site, Cd is bonded to one Y, one Ni, and ten Cd atoms to form distorted CdYCd10Ni cuboctahedra that share corners with fifteen equivalent CdYCd10Ni cuboctahedra, edges with two equivalent CdYCd10Ni cuboctahedra, edges with three equivalent NiCd12 cuboctahedra, a faceface with one NiCd12 cuboctahedra, and faces with fifteen equivalent CdYCd10Ni cuboctahedra. There are a spread of Cd–Cd bond distances ranging from 2.90–3.35 Å. In the third Cd site, Cd is bonded in a distorted linear geometry to two equivalent Y and twelve equivalent Cd atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nd(Cd10Ni)2 by Materials Project

Nd(NiCd10)2 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Nd is bonded in a 4-coordinate geometry to sixteen Cd atoms. There are four shorter (3.42 Å) and twelve longer (3.47 Å) Nd–Cd bond lengths. Ni is bonded to twelve Cd atoms to form NiCd12 cuboctahedra that share corners with six equivalent NiCd12 cuboctahedra, edges with eighteen equivalent CdNdCd10Ni cuboctahedra, and faces with six equivalent CdNdCd10Ni cuboctahedra. There are six shorter (2.80 Å) and six longer (3.08 Å) Ni–Cd bond lengths. There are three inequivalent Cd sites. In the first Cd site, Cd is bonded in a 2-coordinate geometry to two equivalent Ni and ten Cd atoms. There are a spread of Cd–Cd bond distances ranging from 2.97–3.12 Å. In the second Cd site, Cd is bonded to one Nd, one Ni, and ten Cd atoms to form distorted CdNdCd10Ni cuboctahedra that share corners with fifteen equivalent CdNdCd10Ni cuboctahedra, edges with two equivalent CdNdCd10Ni cuboctahedra, edges with three equivalent NiCd12 cuboctahedra, a faceface with one NiCd12 cuboctahedra, and faces with fifteen equivalent CdNdCd10Ni cuboctahedra. There are a spread of Cd–Cd bond distances ranging from 2.92–3.36 Å. In the third Cd site, Cd is bonded in a distorted linear geometry to two equivalent Nd and twelve equivalent Cd atoms.

36 MATERIALS SCIENCE↗