cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17188/1282157
title: Materials Data on Li8TbO6 by Materials Project

description: Li8TbO6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six equivalent O2- atoms to form distorted LiO6 octahedra that share corners with twelve equivalent LiO4 tetrahedra, edges with three equivalent LiO6 octahedra, edges with three equivalent TbO6 octahedra, and edges with six equivalent LiO4 tetrahedra. There are three shorter (2.14 Å) and three longer (2.62 Å) Li–O bond lengths. In the second Li1+ site, Li1+ is bonded to four equivalent O2- atoms to form LiO4 tetrahedra that share corners with two equivalent TbO6 octahedra, corners with four equivalent LiO6 octahedra, corners with six equivalent LiO4 tetrahedra, an edgeedge with one TbO6 octahedra, edges with two equivalent LiO6 octahedra, and edges with three equivalent LiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 16–59°. There are a spread of Li–O bond distances ranging from 1.91–2.03 Å. Tb4+ is bonded to six equivalent O2- atoms to form TbO6 octahedra that share corners with twelve equivalent LiO4 tetrahedra, edges with six equivalent LiO6 octahedra, and edges with six equivalent LiO4 tetrahedra. All Tb–O bond lengths are 2.28 Å. O2- is bonded in a 7-coordinate geometry to six Li1+ and one Tb4+ atom.
DOI: 10.17188/1282158
title: Materials Data on Rb2PrO3 by Materials Project

description: Rb2PrO3 is Krennerite-derived structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. Rb1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Rb–O bond distances ranging from 2.78–3.30 Å. Pr4+ is bonded to five O2- atoms to form distorted edge-sharing PrO5 trigonal bipyramids. There are a spread of Pr–O bond distances ranging from 2.23–2.37 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 6-coordinate geometry to four equivalent Rb1+ and two equivalent Pr4+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four equivalent Rb1+ and one Pr4+ atom.
DOI: 10.17188/1282159
title: Materials Data on Li4FeNi5O12 (SG:5) by Materials Project

description: Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations
DOI: 10.17188/1282161
title: Materials Data on Mn3(OF2)2 by Materials Project

description: Mn3(OF2)2 is zeta iron carbide-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are four inequivalent Mn+2.67+ sites. In the first Mn+2.67+ site, Mn+2.67+ is bonded to two O2- and four F1- atoms to form MnO2F4 octahedra that share corners with eight MnO3F3 octahedra and edges with two MnO2F4 octahedra. The corner-sharing octahedra tilt angles range from 45–54°. There is one shorter (1.91 Å) and one longer (1.97 Å) Mn–O bond length. There are two shorter (2.07 Å) and two longer (2.10 Å) Mn–F bond lengths. In the second Mn+2.67+ site, Mn+2.67+ is bonded to three O2- and three F1- atoms to form MnO3F3 octahedra that share corners with eight MnO2F4 octahedra and edges with two MnO3F3 octahedra. The corner-sharing octahedra tilt angles range from 44–54°. There are a spread of Mn–O bond distances ranging from 1.93–2.00 Å. There are one shorter (2.03 Å) and two longer (2.23 Å) Mn–F bond lengths. In the third Mn+2.67+ site, Mn+2.67+ is bonded to six F1- atoms to form MnF6 octahedra that share corners with eight MnO3F3 octahedra and edges with two equivalent MnO2F4 octahedra. The corner-sharing octahedra tilt angles range from 44–60°. There are two shorter (2.05 Å) and four longer (2.12 Å) Mn–F bond lengths. In the fourth Mn+2.67+ site, Mn+2.67+ is bonded to two equivalent O2- and four F1- atoms to form MnO2F4 octahedra that share corners with eight MnO2F4 octahedra and edges with two equivalent MnO3F3 octahedra. The corner-sharing octahedra tilt angles range from 49–60°. Both Mn–O bond lengths are 2.12 Å. There are two shorter (2.08 Å) and two longer (2.22 Å) Mn–F bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Mn+2.67+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Mn+2.67+ atoms. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three Mn+2.67+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three Mn+2.67+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three Mn+2.67+ atoms.
DOI: 10.17188/1282162
title: Materials Data on Li3Mn3O3F5 (SG:8) by Materials Project

description: Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations
DOI: 10.17188/1282163
title: Materials Data on Ba4Ce2O7 by Materials Project

description: Ba4Ce2O7 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. Ba2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ba–O bond distances ranging from 2.62–3.26 Å. Ce3+ is bonded to five O2- atoms to form corner-sharing CeO5 square pyramids. There are a spread of Ce–O bond distances ranging from 2.21–2.31 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to five equivalent Ba2+ and one Ce3+ atom to form distorted OBa5Ce octahedra that share corners with eight OBa5Ce octahedra, corners with three equivalent OBa2Ce2 tetrahedra, edges with eight equivalent OBa5Ce octahedra, edges with two equivalent OBa2Ce2 tetrahedra, and a faceface with one OBa4Ce2 octahedra. The corner-sharing octahedra tilt angles range from 4–62°. In the second O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Ce3+ atoms to form distorted OBa4Ce2 octahedra that share corners with twelve equivalent OBa5Ce octahedra, corners with four equivalent OBa2Ce2 tetrahedra, edges with two equivalent OBa2Ce2 tetrahedra, and faces with four equivalent OBa5Ce octahedra. The corner-sharing octahedra tilt angles range from 40–62°. In the third O2- site, O2- is bonded to two equivalent Ba2+ and two equivalent Ce3+ atoms to form distorted OBa2Ce2 tetrahedra that share corners with eight OBa5Ce octahedra, corners with two equivalent OBa2Ce2 tetrahedra, and edges with five OBa5Ce octahedra. The corner-sharing octahedra tilt angles range from 18–75°.
DOI: 10.17188/1282183
title: Materials Data on Li2V6O15 (SG:12) by Materials Project

description: Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations
DOI: 10.17188/1282184
title: Materials Data on Mn6OF11 (SG:1) by Materials Project

description: Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations
DOI: 10.17188/1282185
title: Materials Data on NbGeRh by Materials Project

description: NbRhGe is half-Heusler structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Nb is bonded in a body-centered cubic geometry to four equivalent Rh and four equivalent Ge atoms. All Nb–Rh bond lengths are 2.64 Å. All Nb–Ge bond lengths are 2.64 Å. Rh is bonded to four equivalent Nb and six equivalent Ge atoms to form distorted RhNb4Ge6 tetrahedra that share corners with four equivalent GeNb4Rh6 tetrahedra, corners with six equivalent RhNb4Ge6 tetrahedra, edges with six equivalent GeNb4Rh6 tetrahedra, and faces with twelve equivalent RhNb4Ge6 tetrahedra. All Rh–Ge bond lengths are 3.05 Å. Ge is bonded to four equivalent Nb and six equivalent Rh atoms to form distorted GeNb4Rh6 tetrahedra that share corners with four equivalent RhNb4Ge6 tetrahedra, corners with six equivalent GeNb4Rh6 tetrahedra, edges with six equivalent RhNb4Ge6 tetrahedra, and faces with twelve equivalent GeNb4Rh6 tetrahedra.
DOI: 10.17188/1282186
title: Materials Data on VN by Materials Project

description: VN is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. V3+ is bonded to six equivalent N3- atoms to form a mixture of edge and corner-sharing VN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All V–N bond lengths are 2.06 Å. N3- is bonded to six equivalent V3+ atoms to form a mixture of edge and corner-sharing NV6 octahedra. The corner-sharing octahedral tilt angles are 0°.
DOI: 10.17188/1282187
title: Materials Data on Cu by Materials Project

description: Cu is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Cu sites. In the first Cu site, Cu is bonded to twelve Cu atoms to form a mixture of face, edge, and corner-sharing CuCu12 cuboctahedra. All Cu–Cu bond lengths are 2.56 Å. In the second Cu site, Cu is bonded to twelve Cu atoms to form a mixture of face, edge, and corner-sharing CuCu12 cuboctahedra. All Cu–Cu bond lengths are 2.56 Å.
DOI: 10.17188/1282188
title: Materials Data on IClO by Materials Project

description: OICl crystallizes in the trigonal R-3 space group. The structure is three-dimensional. O is bonded in a distorted trigonal non-coplanar geometry to three equivalent I atoms. There are a spread of O–I bond distances ranging from 1.96–2.60 Å. I is bonded in a rectangular see-saw-like geometry to three equivalent O and one Cl atom. The I–Cl bond length is 2.43 Å. Cl is bonded in a single-bond geometry to one I atom.
DOI: 10.17188/1282189
title: Materials Data on NaBe4SbO7 by Materials Project

description: NaBe4SbO7 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Na1+ is bonded to twelve O2- atoms to form NaO12 cuboctahedra that share corners with twelve equivalent NaO12 cuboctahedra, edges with twelve BeO4 tetrahedra, and faces with four equivalent SbO6 octahedra. All Na–O bond lengths are 2.74 Å. There are two inequivalent Be2+ sites. In the first Be2+ site, Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with three equivalent SbO6 octahedra, corners with six BeO4 tetrahedra, and edges with three equivalent NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 57°. There is three shorter (1.65 Å) and one longer (1.67 Å) Be–O bond length. In the second Be2+ site, Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with three equivalent SbO6 octahedra, corners with six equivalent BeO4 tetrahedra, and edges with three equivalent NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 57°. There is three shorter (1.64 Å) and one longer (1.66 Å) Be–O bond length. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with twelve BeO4 tetrahedra and faces with four equivalent NaO12 cuboctahedra. All Sb–O bond lengths are 2.00 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Na1+, two Be2+, and one Sb5+ atom. In the second O2- site, O2- is bonded in a tetrahedral geometry to four Be2+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Na1+, two equivalent Be2+, and one Sb5+ atom.
DOI: 10.17188/1282190
title: Materials Data on Sr(SiAu)2 by Materials Project

description: SrAu2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to eight equivalent Au1- atoms. All Sr–Au bond lengths are 3.39 Å. Au1- is bonded in a 4-coordinate geometry to four equivalent Sr2+ and four equivalent Si atoms. All Au–Si bond lengths are 2.61 Å. Si is bonded in a 5-coordinate geometry to four equivalent Au1- and one Si atom. The Si–Si bond length is 2.38 Å.
DOI: 10.17188/1282191
title: Materials Data on Na3SbO3 by Materials Project

description: Na3SbO3 crystallizes in the cubic I-43m space group. The structure is three-dimensional. Na1+ is bonded to five equivalent O2- atoms to form a mixture of edge and corner-sharing NaO5 square pyramids. There are a spread of Na–O bond distances ranging from 2.42–2.47 Å. Sb3+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent O2- atoms. All Sb–O bond lengths are 1.99 Å. O2- is bonded to five equivalent Na1+ and one Sb3+ atom to form a mixture of edge and corner-sharing ONa5Sb octahedra. The corner-sharing octahedral tilt angles are 18°.
DOI: 10.17188/1282192
title: Materials Data on Na2Zn2O3 by Materials Project

description: Na2Zn2O3 is Aluminum carbonitride-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Na1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Na–O bond distances ranging from 2.36–2.64 Å. Zn2+ is bonded to four O2- atoms to form a mixture of edge and corner-sharing ZnO4 tetrahedra. There are a spread of Zn–O bond distances ranging from 1.97–2.07 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Na1+ and two equivalent Zn2+ atoms to form corner-sharing ONa4Zn2 octahedra. The corner-sharing octahedral tilt angles are 53°. In the second O2- site, O2- is bonded in a 5-coordinate geometry to two equivalent Na1+ and three equivalent Zn2+ atoms.
DOI: 10.17188/1282193
title: Materials Data on Mg3P2 by Materials Project

description: Mg3P2 crystallizes in the cubic Pn-3m space group. The structure is three-dimensional. Mg2+ is bonded to four equivalent P3- atoms to form a mixture of edge and corner-sharing MgP4 tetrahedra. All Mg–P bond lengths are 2.61 Å. P3- is bonded in a 6-coordinate geometry to six equivalent Mg2+ atoms.
DOI: 10.17188/1282195
title: Materials Data on Cu2P2O7 by Materials Project

description: Cu2P2O7 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Cu2+ is bonded in a 4-coordinate geometry to four O2- atoms. There is two shorter (1.93 Å) and two longer (2.01 Å) Cu–O bond length. P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.52–1.59 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Cu2+ and one P5+ atom. In the second O2- site, O2- is bonded in a linear geometry to two equivalent P5+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Cu2+ and one P5+ atom.
DOI: 10.17188/1282196
title: Materials Data on NaF by Materials Project

description: NaF is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Na1+ is bonded to six equivalent F1- atoms to form a mixture of corner and edge-sharing NaF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Na–F bond lengths are 2.35 Å. F1- is bonded to six equivalent Na1+ atoms to form a mixture of corner and edge-sharing FNa6 octahedra. The corner-sharing octahedral tilt angles are 0°.
DOI: 10.17188/1282197
title: Materials Data on Ba2Hg by Materials Project

description: HgBa2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two HgBa2 sheets oriented in the (0, 0, 1) direction. Ba is bonded in a 4-coordinate geometry to four equivalent Hg atoms. All Ba–Hg bond lengths are 3.62 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Ba atoms.
DOI: 10.17188/1282198
title: Materials Data on FeAg3 by Materials Project

description: FeAg3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Fe is bonded in a distorted body-centered cubic geometry to fourteen Ag atoms. There are eight shorter (2.80 Å) and six longer (3.23 Å) Fe–Ag bond lengths. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded in a distorted body-centered cubic geometry to four equivalent Fe and four equivalent Ag atoms. All Ag–Ag bond lengths are 2.80 Å. In the second Ag site, Ag is bonded in a 8-coordinate geometry to six equivalent Fe and eight equivalent Ag atoms.
DOI: 10.17188/1282199
title: Materials Data on ZrCuF6 by Materials Project

description: CuZrF6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Zr4+ is bonded to six equivalent F1- atoms to form ZrF6 octahedra that share corners with six equivalent CuF6 octahedra. The corner-sharing octahedral tilt angles are 17°. All Zr–F bond lengths are 2.04 Å. Cu2+ is bonded to six equivalent F1- atoms to form CuF6 octahedra that share corners with six equivalent ZrF6 octahedra. The corner-sharing octahedral tilt angles are 17°. All Cu–F bond lengths are 2.03 Å. F1- is bonded in a linear geometry to one Zr4+ and one Cu2+ atom.
DOI: 10.17188/1282200
title: Materials Data on TmGe by Materials Project

description: TmGe crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Tm is bonded in a 5-coordinate geometry to seven equivalent Ge atoms. There are a spread of Tm–Ge bond distances ranging from 2.91–3.19 Å. Ge is bonded in a 5-coordinate geometry to seven equivalent Tm and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.69 Å.
DOI: 10.17188/1282201
title: Materials Data on W3N4 by Materials Project

description: W3N4 crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. W4+ is bonded to six N3- atoms to form a mixture of corner and edge-sharing WN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All W–N bond lengths are 2.11 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to six equivalent W4+ atoms to form corner-sharing NW6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second N3- site, N3- is bonded in a square co-planar geometry to four equivalent W4+ atoms.
DOI: 10.17188/1282202
title: Materials Data on CaN6 by Materials Project

description: CaN6 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight equivalent N+0.33- atoms. There are four shorter (2.57 Å) and four longer (2.63 Å) Ca–N bond lengths. There are two inequivalent N+0.33- sites. In the first N+0.33- site, N+0.33- is bonded in a trigonal planar geometry to two equivalent Ca2+ and one N+0.33- atom. The N–N bond length is 1.18 Å. In the second N+0.33- site, N+0.33- is bonded in a linear geometry to two equivalent N+0.33- atoms.
DOI: 10.17188/1282203
title: Materials Data on InGaO3 by Materials Project

description: InGaO3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. In3+ is bonded to six equivalent O2- atoms to form InO6 octahedra that share corners with six equivalent GaO5 trigonal bipyramids and edges with six equivalent InO6 octahedra. All In–O bond lengths are 2.22 Å. Ga3+ is bonded to five O2- atoms to form GaO5 trigonal bipyramids that share corners with six equivalent InO6 octahedra and corners with six equivalent GaO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 61°. There is three shorter (1.94 Å) and two longer (1.99 Å) Ga–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Ga3+ atoms. In the second O2- site, O2- is bonded to three equivalent In3+ and one Ga3+ atom to form a mixture of distorted edge and corner-sharing OIn3Ga tetrahedra.
DOI: 10.17188/1282204
title: Materials Data on K(MoS)3 by Materials Project

description: K(MoS)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. K is bonded in a 9-coordinate geometry to nine equivalent S atoms. There are six shorter (3.48 Å) and three longer (3.52 Å) K–S bond lengths. Mo is bonded in a distorted see-saw-like geometry to four equivalent S atoms. There are a spread of Mo–S bond distances ranging from 2.49–2.60 Å. S is bonded in a 7-coordinate geometry to three equivalent K and four equivalent Mo atoms.
DOI: 10.17188/1282205
title: Materials Data on OsO2 by Materials Project

description: OsO2 is Hydrophilite structured and crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Os4+ is bonded to six equivalent O2- atoms to form a mixture of corner and edge-sharing OsO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There is two shorter (1.97 Å) and four longer (2.02 Å) Os–O bond length. O2- is bonded in a trigonal planar geometry to three equivalent Os4+ atoms.
DOI: 10.17188/1282206
title: Materials Data on Li4Mn3Sb(PO4)4 (SG:6) by Materials Project

description: Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations
DOI: 10.17188/1282207
title: Materials Data on NdCuSi by Materials Project

description: NdCuSi crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Nd3+ is bonded to six equivalent Si4- atoms to form a mixture of edge, corner, and face-sharing NdSi6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Nd–Si bond lengths are 3.14 Å. Cu1+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Cu–Si bond lengths are 2.43 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Nd3+ and three equivalent Cu1+ atoms.
DOI: 10.17188/1282208
title: Materials Data on Al2O by Materials Project

description: Al2O is Fluorite structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Al is bonded to four equivalent O atoms to form a mixture of corner and edge-sharing AlO4 tetrahedra. All Al–O bond lengths are 2.46 Å. O is bonded in a body-centered cubic geometry to eight equivalent Al atoms.
DOI: 10.17188/1282209
title: Materials Data on EuB4O7 by Materials Project

description: EuB4O7 crystallizes in the orthorhombic Pmn2_1 space group. The structure is three-dimensional. Eu2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Eu–O bond distances ranging from 2.56–2.89 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.43–1.57 Å. In the second B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There is three shorter (1.46 Å) and one longer (1.57 Å) B–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Eu2+ and two B3+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Eu2+ and two B3+ atoms. In the third O2- site, O2- is bonded in a trigonal planar geometry to three B3+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Eu2+ and two equivalent B3+ atoms.