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At least 235 records · Page 13

Materials Data on CuBiTeO by Materials Project

BiCuOTe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one BiO sheet oriented in the (0, 0, 1) direction and one CuTe sheet oriented in the (0, 0, 1) direction. In the BiO sheet, Bi3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Bi–O bond lengths are 2.37 Å. O2- is bonded to four equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the CuTe sheet, Cu1+ is bonded to four equivalent Te2- atoms to form a mixture of edge and corner-sharing CuTe4 tetrahedra. All Cu–Te bond lengths are 2.67 Å. Te2- is bonded in a 12-coordinate geometry to four equivalent Cu1+ atoms.

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Materials Data on YZnAsO by Materials Project

YZnAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Y3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four equivalent O2- atoms. All Y–As bond lengths are 3.31 Å. All Y–O bond lengths are 2.27 Å. Zn2+ is bonded to four equivalent As3- atoms to form a mixture of edge and corner-sharing ZnAs4 tetrahedra. All Zn–As bond lengths are 2.57 Å. As3- is bonded in a 8-coordinate geometry to four equivalent Y3+ and four equivalent Zn2+ atoms. O2- is bonded to four equivalent Y3+ atoms to form a mixture of edge and corner-sharing OY4 tetrahedra.

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Materials Data on LaCuTeO by Materials Project

LaCuOTe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. La3+ is bonded in a 4-coordinate geometry to four equivalent Te2- and four equivalent O2- atoms. All La–Te bond lengths are 3.49 Å. All La–O bond lengths are 2.40 Å. Cu1+ is bonded to four equivalent Te2- atoms to form CuTe4 tetrahedra that share corners with four equivalent CuTe4 tetrahedra, corners with twelve equivalent OLa4Te4 tetrahedra, edges with two equivalent OLa4Te4 tetrahedra, and edges with four equivalent CuTe4 tetrahedra. All Cu–Te bond lengths are 2.66 Å. Te2- is bonded in a 12-coordinate geometry to four equivalent La3+, four equivalent Cu1+, and four equivalent O2- atoms. All Te–O bond lengths are 3.69 Å. O2- is bonded to four equivalent La3+ and four equivalent Te2- atoms to form OLa4Te4 tetrahedra that share corners with twelve equivalent CuTe4 tetrahedra, edges with two equivalent CuTe4 tetrahedra, edges with four equivalent OLa4Te4 tetrahedra, and faces with four equivalent OLa4Te4 tetrahedra.

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Materials Data on LaZnAsO by Materials Project

LaZnAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. La3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four equivalent O2- atoms. All La–As bond lengths are 3.42 Å. All La–O bond lengths are 2.39 Å. Zn2+ is bonded to four equivalent As3- atoms to form a mixture of edge and corner-sharing ZnAs4 tetrahedra. All Zn–As bond lengths are 2.59 Å. As3- is bonded in a 8-coordinate geometry to four equivalent La3+ and four equivalent Zn2+ atoms. O2- is bonded to four equivalent La3+ atoms to form a mixture of edge and corner-sharing OLa4 tetrahedra.

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Materials Data on LaCuSeO by Materials Project

LaCuOSe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuSe sheet oriented in the (0, 0, 1) direction and one LaO sheet oriented in the (0, 0, 1) direction. In the CuSe sheet, Cu1+ is bonded to four equivalent Se2- atoms to form a mixture of corner and edge-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.52 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms. In the LaO sheet, La3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All La–O bond lengths are 2.38 Å. O2- is bonded to four equivalent La3+ atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra.

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Materials Data on SrCdBi2 by Materials Project

SrCdBi2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 12-coordinate geometry to eight Bi atoms. There are four shorter (3.51 Å) and four longer (3.56 Å) Sr–Bi bond lengths. In the second Sr site, Sr is bonded in a 12-coordinate geometry to eight Bi atoms. There are four shorter (3.51 Å) and four longer (3.56 Å) Sr–Bi bond lengths. Cd is bonded to four Bi atoms to form a mixture of distorted edge and corner-sharing CdBi4 cuboctahedra. All Cd–Bi bond lengths are 3.10 Å. There are five inequivalent Bi sites. In the first Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Sr and four equivalent Cd atoms. In the second Bi site, Bi is bonded in a distorted body-centered cubic geometry to four equivalent Sr and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.32 Å. In the third Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Sr and four equivalent Cd atoms. In the fourth Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Sr and four equivalent Bi atoms. All Bi–Bi bond lengths are 3.32 Å. In the fifth Bi site, Bi is bonded in a 8-coordinate geometry to four equivalent Sr and four equivalent Bi atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeFeAsO by Materials Project

CeFeAsO is Parent of FeAs superconductors structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four O2- atoms. There are a spread of Ce–As bond distances ranging from 3.20–3.23 Å. There are two shorter (2.35 Å) and two longer (2.36 Å) Ce–O bond lengths. In the second Ce3+ site, Ce3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four O2- atoms. There are two shorter (3.27 Å) and two longer (3.28 Å) Ce–As bond lengths. There are a spread of Ce–O bond distances ranging from 2.33–2.35 Å. There are two inequivalent Fe2+ sites. In the first Fe2+ site, Fe2+ is bonded to four As3- atoms to form a mixture of edge and corner-sharing FeAs4 tetrahedra. There are two shorter (2.61 Å) and two longer (2.62 Å) Fe–As bond lengths. In the second Fe2+ site, Fe2+ is bonded to four As3- atoms to form a mixture of edge and corner-sharing FeAs4 tetrahedra. There are one shorter (2.60 Å) and three longer (2.62 Å) Fe–As bond lengths. There are two inequivalent As3- sites. In the first As3- site, As3- is bonded in a 8-coordinate geometry to four equivalent Ce3+ and four Fe2+ atoms. In the second As3- site, As3- is bonded in a 8-coordinate geometry to four equivalent Ce3+ and four Fe2+ atoms. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four Ce3+ atoms to form a mixture of edge and corner-sharing OCe4 tetrahedra. In the second O2- site, O2- is bonded to four Ce3+ atoms to form a mixture of edge and corner-sharing OCe4 tetrahedra.

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Materials Data on LaCuSO by Materials Project

(LaO)CuS is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuS sheet oriented in the (0, 0, 1) direction and one LaO sheet oriented in the (0, 0, 1) direction. In the CuS sheet, Cu1+ is bonded to four equivalent S2- atoms to form a mixture of corner and edge-sharing CuS4 tetrahedra. All Cu–S bond lengths are 2.42 Å. S2- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms. In the LaO sheet, La3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All La–O bond lengths are 2.36 Å. O2- is bonded to four equivalent La3+ atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra.

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Materials Data on PrCuSO by Materials Project

(PrO)CuS is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuS sheet oriented in the (0, 0, 1) direction and one PrO sheet oriented in the (0, 0, 1) direction. In the CuS sheet, Cu1+ is bonded to four equivalent S2- atoms to form a mixture of edge and corner-sharing CuS4 tetrahedra. All Cu–S bond lengths are 2.42 Å. S2- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms. In the PrO sheet, Pr3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Pr–O bond lengths are 2.35 Å. O2- is bonded to four equivalent Pr3+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra.

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Materials Data on NdFeAsO by Materials Project

NdFeAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Nd3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four equivalent O2- atoms. All Nd–As bond lengths are 3.38 Å. All Nd–O bond lengths are 2.35 Å. Fe2+ is bonded to four equivalent As3- atoms to form a mixture of corner and edge-sharing FeAs4 tetrahedra. All Fe–As bond lengths are 2.62 Å. As3- is bonded in a 8-coordinate geometry to four equivalent Nd3+ and four equivalent Fe2+ atoms. O2- is bonded to four equivalent Nd3+ atoms to form a mixture of corner and edge-sharing ONd4 tetrahedra.

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Materials Data on CeCuSO by Materials Project

CeCuOS is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce3+ is bonded in a 4-coordinate geometry to four equivalent S2- and four equivalent O2- atoms. All Ce–S bond lengths are 3.18 Å. All Ce–O bond lengths are 2.33 Å. Cu1+ is bonded to four equivalent S2- atoms to form a mixture of edge and corner-sharing CuS4 tetrahedra. All Cu–S bond lengths are 2.41 Å. S2- is bonded in a 4-coordinate geometry to four equivalent Ce3+ and four equivalent Cu1+ atoms. O2- is bonded to four equivalent Ce3+ atoms to form a mixture of edge and corner-sharing OCe4 tetrahedra.

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Materials Data on LaAgSO by Materials Project

LaAgSO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. La3+ is bonded in a 4-coordinate geometry to four equivalent S2- and four equivalent O2- atoms. All La–S bond lengths are 3.29 Å. All La–O bond lengths are 2.39 Å. Ag1+ is bonded to four equivalent S2- atoms to form distorted AgS4 tetrahedra that share corners with four equivalent AgS4 tetrahedra, corners with twelve equivalent OLa4S4 tetrahedra, edges with two equivalent OLa4S4 tetrahedra, and edges with four equivalent AgS4 tetrahedra. All Ag–S bond lengths are 2.70 Å. S2- is bonded in a 12-coordinate geometry to four equivalent La3+, four equivalent Ag1+, and four equivalent O2- atoms. All S–O bond lengths are 3.46 Å. O2- is bonded to four equivalent La3+ and four equivalent S2- atoms to form OLa4S4 tetrahedra that share corners with twelve equivalent AgS4 tetrahedra, edges with two equivalent AgS4 tetrahedra, edges with four equivalent OLa4S4 tetrahedra, and faces with four equivalent OLa4S4 tetrahedra.

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Materials Data on LaZnPO by Materials Project

LaZnOP is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. La3+ is bonded in a 4-coordinate geometry to four equivalent P3- and four equivalent O2- atoms. All La–P bond lengths are 3.36 Å. All La–O bond lengths are 2.37 Å. Zn2+ is bonded to four equivalent P3- atoms to form a mixture of edge and corner-sharing ZnP4 tetrahedra. All Zn–P bond lengths are 2.50 Å. P3- is bonded in a 4-coordinate geometry to four equivalent La3+ and four equivalent Zn2+ atoms. O2- is bonded to four equivalent La3+ atoms to form a mixture of edge and corner-sharing OLa4 tetrahedra.

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Materials Data on NdZnAsO by Materials Project

NdZnAsO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Nd3+ is bonded in a 4-coordinate geometry to four equivalent As3- and four equivalent O2- atoms. All Nd–As bond lengths are 3.38 Å. All Nd–O bond lengths are 2.35 Å. Zn2+ is bonded to four equivalent As3- atoms to form a mixture of edge and corner-sharing ZnAs4 tetrahedra. All Zn–As bond lengths are 2.58 Å. As3- is bonded in a 8-coordinate geometry to four equivalent Nd3+ and four equivalent Zn2+ atoms. O2- is bonded to four equivalent Nd3+ atoms to form a mixture of edge and corner-sharing ONd4 tetrahedra.

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Materials Data on SmCuSeO by Materials Project

SmCuOSe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuSe sheet oriented in the (0, 0, 1) direction and one SmO sheet oriented in the (0, 0, 1) direction. In the CuSe sheet, Cu1+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.52 Å. Se2- is bonded in a 12-coordinate geometry to four equivalent Cu1+ atoms. In the SmO sheet, Sm3+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Sm–O bond lengths are 2.31 Å. O2- is bonded to four equivalent Sm3+ atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra.

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Materials Data on BaCuSeF by Materials Project

BaCuSeF is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ba2+ is bonded in a 4-coordinate geometry to four equivalent Se2- and four equivalent F1- atoms. All Ba–Se bond lengths are 3.43 Å. All Ba–F bond lengths are 2.66 Å. Cu1+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.55 Å. Se2- is bonded in a 8-coordinate geometry to four equivalent Ba2+ and four equivalent Cu1+ atoms. F1- is bonded to four equivalent Ba2+ atoms to form a mixture of edge and corner-sharing FBa4 tetrahedra.

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Materials Data on DyCuSeO by Materials Project

DyOCuSe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Dy3+ is bonded in a 4-coordinate geometry to four equivalent Se2- and four equivalent O2- atoms. All Dy–Se bond lengths are 3.21 Å. All Dy–O bond lengths are 2.25 Å. Cu1+ is bonded to four equivalent Se2- atoms to form a mixture of corner and edge-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.52 Å. Se2- is bonded in a 12-coordinate geometry to four equivalent Dy3+ and four equivalent Cu1+ atoms. O2- is bonded to four equivalent Dy3+ atoms to form a mixture of corner and edge-sharing ODy4 tetrahedra.

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Materials Data on NdCuTeO by Materials Project

NdCuOTe is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Nd3+ is bonded in a 4-coordinate geometry to four equivalent Te2- and four equivalent O2- atoms. All Nd–Te bond lengths are 3.46 Å. All Nd–O bond lengths are 2.37 Å. Cu1+ is bonded to four equivalent Te2- atoms to form CuTe4 tetrahedra that share corners with four equivalent CuTe4 tetrahedra, corners with twelve equivalent ONd4Te4 tetrahedra, edges with two equivalent ONd4Te4 tetrahedra, and edges with four equivalent CuTe4 tetrahedra. All Cu–Te bond lengths are 2.67 Å. Te2- is bonded in a 12-coordinate geometry to four equivalent Nd3+, four equivalent Cu1+, and four equivalent O2- atoms. All Te–O bond lengths are 3.65 Å. O2- is bonded to four equivalent Nd3+ and four equivalent Te2- atoms to form distorted ONd4Te4 tetrahedra that share corners with twelve equivalent CuTe4 tetrahedra, edges with two equivalent CuTe4 tetrahedra, edges with four equivalent ONd4Te4 tetrahedra, and faces with four equivalent ONd4Te4 tetrahedra.

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