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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LaGd3(BrO)4 by Materials Project

Gd3La(OBr)4 crystallizes in the orthorhombic Amm2 space group. The structure is two-dimensional and consists of two Gd3La(OBr)4 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Gd3+ sites. In the first Gd3+ site, Gd3+ is bonded in a 4-coordinate geometry to four O2- and four equivalent Br1- atoms. There are two shorter (2.27 Å) and two longer (2.29 Å) Gd–O bond lengths. All Gd–Br bond lengths are 3.22 Å. In the second Gd3+ site, Gd3+ is bonded in a 4-coordinate geometry to four O2- and four Br1- atoms. There are one shorter (2.28 Å) and three longer (2.29 Å) Gd–O bond lengths. There are two shorter (3.23 Å) and two longer (3.26 Å) Gd–Br bond lengths. La3+ is bonded in a 4-coordinate geometry to four O2- and four equivalent Br1- atoms. There are two shorter (2.36 Å) and two longer (2.38 Å) La–O bond lengths. All La–Br bond lengths are 3.26 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to three Gd3+ and one La3+ atom to form OLaGd3 tetrahedra that share corners with four equivalent OLaGd3 tetrahedra and edges with four OGd4 tetrahedra. In the second O2- site, O2- is bonded to four Gd3+ atoms to form OGd4 tetrahedra that share corners with four OGd4 tetrahedra and edges with four equivalent OLaGd3 tetrahedra. In the third O2- site, O2- is bonded to two equivalent Gd3+ and two equivalent La3+ atoms to form OLa2Gd2 tetrahedra that share corners with four OGd4 tetrahedra and edges with four equivalent OLaGd3 tetrahedra. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 4-coordinate geometry to four equivalent Gd3+ atoms. In the second Br1- site, Br1- is bonded in a 4-coordinate geometry to four equivalent Gd3+ atoms. In the third Br1- site, Br1- is bonded in a 4-coordinate geometry to two equivalent Gd3+ and two equivalent La3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaGd3 by Materials Project

Gd3La is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Gd sites. In the first Gd site, Gd is bonded to eight Gd and four equivalent La atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent LaGd12 cuboctahedra, corners with fourteen GdLa4Gd8 cuboctahedra, edges with six equivalent LaGd12 cuboctahedra, edges with twelve GdLa4Gd8 cuboctahedra, faces with four equivalent LaGd12 cuboctahedra, and faces with sixteen GdLa4Gd8 cuboctahedra. There are a spread of Gd–Gd bond distances ranging from 3.62–3.71 Å. There are two shorter (3.64 Å) and two longer (3.69 Å) Gd–La bond lengths. In the second Gd site, Gd is bonded to eight equivalent Gd and four equivalent La atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent LaGd12 cuboctahedra, corners with fourteen GdLa4Gd8 cuboctahedra, edges with six equivalent LaGd12 cuboctahedra, edges with twelve equivalent GdLa4Gd8 cuboctahedra, faces with four equivalent LaGd12 cuboctahedra, and faces with sixteen GdLa4Gd8 cuboctahedra. There are two shorter (3.64 Å) and two longer (3.69 Å) Gd–La bond lengths. La is bonded to twelve Gd atoms to form LaGd12 cuboctahedra that share corners with six equivalent LaGd12 cuboctahedra, corners with twelve equivalent GdLa4Gd8 cuboctahedra, edges with eighteen GdLa4Gd8 cuboctahedra, faces with eight equivalent LaGd12 cuboctahedra, and faces with twelve GdLa4Gd8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaGd3(ClO)4 by Materials Project

Gd3La(OCl)4 is Matlockite-derived structured and crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Gd3+ sites. In the first Gd3+ site, Gd3+ is bonded in a 9-coordinate geometry to four O2- and five Cl1- atoms. There are two shorter (2.28 Å) and two longer (2.30 Å) Gd–O bond lengths. There are four shorter (3.12 Å) and one longer (3.25 Å) Gd–Cl bond lengths. In the second Gd3+ site, Gd3+ is bonded in a 4-coordinate geometry to four O2- and five Cl1- atoms. There are one shorter (2.29 Å) and three longer (2.30 Å) Gd–O bond lengths. There are a spread of Gd–Cl bond distances ranging from 3.13–3.20 Å. La3+ is bonded in a 9-coordinate geometry to four O2- and five Cl1- atoms. There are two shorter (2.37 Å) and two longer (2.39 Å) La–O bond lengths. There are one shorter (3.12 Å) and four longer (3.15 Å) La–Cl bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Gd3+ and two equivalent La3+ atoms to form OLa2Gd2 tetrahedra that share corners with four OGd4 tetrahedra and edges with four equivalent OLaGd3 tetrahedra. In the second O2- site, O2- is bonded to four Gd3+ atoms to form OGd4 tetrahedra that share corners with four OLa2Gd2 tetrahedra and edges with four equivalent OLaGd3 tetrahedra. In the third O2- site, O2- is bonded to three Gd3+ and one La3+ atom to form OLaGd3 tetrahedra that share corners with four equivalent OLaGd3 tetrahedra and edges with four OLa2Gd2 tetrahedra. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 5-coordinate geometry to four equivalent Gd3+ and one La3+ atom. In the second Cl1- site, Cl1- is bonded in a 5-coordinate geometry to five Gd3+ atoms. In the third Cl1- site, Cl1- is bonded in a 5-coordinate geometry to three Gd3+ and two equivalent La3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaGd3 by Materials Project

Gd3La crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Gd sites. In the first Gd site, Gd is bonded to eight Gd and four equivalent La atoms to form GdLa4Gd8 cuboctahedra that share corners with twelve equivalent GdLa4Gd8 cuboctahedra, edges with eight equivalent LaGd12 cuboctahedra, edges with sixteen GdLa4Gd8 cuboctahedra, faces with four equivalent LaGd12 cuboctahedra, and faces with fourteen GdLa4Gd8 cuboctahedra. There are four shorter (3.63 Å) and four longer (3.64 Å) Gd–Gd bond lengths. All Gd–La bond lengths are 3.63 Å. In the second Gd site, Gd is bonded to eight equivalent Gd and four equivalent La atoms to form GdLa4Gd8 cuboctahedra that share corners with four equivalent GdLa4Gd8 cuboctahedra, corners with eight equivalent LaGd12 cuboctahedra, edges with twenty-four GdLa4Gd8 cuboctahedra, faces with six equivalent LaGd12 cuboctahedra, and faces with twelve GdLa4Gd8 cuboctahedra. All Gd–La bond lengths are 3.64 Å. La is bonded to twelve Gd atoms to form LaGd12 cuboctahedra that share corners with four equivalent LaGd12 cuboctahedra, corners with eight equivalent GdLa4Gd8 cuboctahedra, edges with eight equivalent LaGd12 cuboctahedra, edges with sixteen equivalent GdLa4Gd8 cuboctahedra, faces with four equivalent LaGd12 cuboctahedra, and faces with fourteen GdLa4Gd8 cuboctahedra.

36 MATERIALS SCIENCE↗