cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17188/1290988
title: Materials Data on YH2(CO3)2 by Materials Project

description: YH2(CO3)2 crystallizes in the orthorhombic C222_1 space group. The structure is three-dimensional. there are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Y–O bond distances ranging from 2.36–2.48 Å. In the second Y3+ site, Y3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Y–O bond distances ranging from 2.36–2.47 Å. There are two inequivalent C+3.50+ sites. In the first C+3.50+ site, C+3.50+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. In the second C+3.50+ site, C+3.50+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.29 Å) and one longer (1.31 Å) C–O bond length. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Y3+ and one C+3.50+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two Y3+ and one C+3.50+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Y3+ and one C+3.50+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Y3+ and one C+3.50+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two Y3+ and one C+3.50+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Y3+ and two equivalent H1+ atoms. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Y3+ and two equivalent H1+ atoms.
DOI: 10.17188/1290989
title: Materials Data on Mn11Pd21 by Materials Project

description: Mn11Pd21 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. there are seven inequivalent Mn sites. In the first Mn site, Mn is bonded in a distorted body-centered cubic geometry to eight Pd atoms. There are four shorter (2.69 Å) and four longer (2.76 Å) Mn–Pd bond lengths. In the second Mn site, Mn is bonded in a 12-coordinate geometry to eleven Pd atoms. There are a spread of Mn–Pd bond distances ranging from 2.74–2.86 Å. In the third Mn site, Mn is bonded in a 12-coordinate geometry to ten Pd atoms. There are a spread of Mn–Pd bond distances ranging from 2.72–2.87 Å. In the fourth Mn site, Mn is bonded in a 12-coordinate geometry to ten Pd atoms. There are a spread of Mn–Pd bond distances ranging from 2.72–2.87 Å. In the fifth Mn site, Mn is bonded in a distorted body-centered cubic geometry to eight equivalent Pd atoms. All Mn–Pd bond lengths are 2.73 Å. In the sixth Mn site, Mn is bonded in a 12-coordinate geometry to ten Pd atoms. There are a spread of Mn–Pd bond distances ranging from 2.72–2.87 Å. In the seventh Mn site, Mn is bonded in a 12-coordinate geometry to ten Pd atoms. There are a spread of Mn–Pd bond distances ranging from 2.72–2.87 Å. There are six inequivalent Pd sites. In the first Pd site, Pd is bonded to four equivalent Mn and eight equivalent Pd atoms to form distorted PdMn4Pd8 cuboctahedra that share corners with sixteen equivalent PdMn6Pd2 cuboctahedra and faces with six PdMn4Pd8 cuboctahedra. All Pd–Pd bond lengths are 2.80 Å. In the second Pd site, Pd is bonded to four Mn and eight equivalent Pd atoms to form a mixture of face and corner-sharing PdMn4Pd8 cuboctahedra. All Pd–Pd bond lengths are 2.73 Å. In the third Pd site, Pd is bonded in a 12-coordinate geometry to five Mn and three Pd atoms. The Pd–Pd bond length is 2.77 Å. In the fourth Pd site, Pd is bonded to four equivalent Mn and eight Pd atoms to form PdMn4Pd8 cuboctahedra that share corners with twenty PdMn4Pd8 cuboctahedra, edges with four equivalent PdMn6Pd2 cuboctahedra, and faces with two equivalent PdMn4Pd8 cuboctahedra. All Pd–Pd bond lengths are 2.74 Å. In the fifth Pd site, Pd is bonded to six Mn and two Pd atoms to form distorted PdMn6Pd2 cuboctahedra that share corners with ten PdMn4Pd8 cuboctahedra, edges with eight PdMn4Pd8 cuboctahedra, and faces with four equivalent PdMn6Pd2 cuboctahedra. The Pd–Pd bond length is 2.75 Å. In the sixth Pd site, Pd is bonded to four Mn and eight equivalent Pd atoms to form PdMn4Pd8 cuboctahedra that share corners with twelve PdMn4Pd8 cuboctahedra and edges with eight equivalent PdMn6Pd2 cuboctahedra.
DOI: 10.17188/1290990
title: Materials Data on Yb2P4O13 by Materials Project

description: Yb2P4O13 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Yb3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Yb–O bond distances ranging from 2.33–2.59 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.61 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.61 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent P5+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Yb3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Yb3+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Yb3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Yb3+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Yb3+ and one P5+ atom.
DOI: 10.17188/1290991
title: Materials Data on Li2SnP2O7 by Materials Project

description: Li2SnP2O7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with two equivalent LiO4 tetrahedra, corners with four PO4 tetrahedra, and a cornercorner with one LiO5 trigonal bipyramid. There are a spread of Li–O bond distances ranging from 1.97–2.07 Å. In the second Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share a cornercorner with one LiO4 tetrahedra, corners with five PO4 tetrahedra, and corners with two equivalent LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.98–2.32 Å. Sn2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Sn–O bond distances ranging from 2.23–2.53 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one PO4 tetrahedra, corners with three equivalent LiO4 tetrahedra, and corners with three equivalent LiO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.53–1.65 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one LiO4 tetrahedra, a cornercorner with one PO4 tetrahedra, and corners with two equivalent LiO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.53–1.63 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Li1+ and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Sn2+, and one P5+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Sn2+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a trigonal non-coplanar geometry to two equivalent Li1+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Sn2+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Sn2+, and one P5+ atom.
DOI: 10.17188/1290993
title: Materials Data on Li2AgF5 by Materials Project

description: Li2AgF5 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Li1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Li–F bond distances ranging from 1.86–2.45 Å. Ag3+ is bonded to six F1- atoms to form distorted corner-sharing AgF6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of Ag–F bond distances ranging from 1.97–2.42 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded to three equivalent Li1+ and one Ag3+ atom to form a mixture of distorted edge and corner-sharing FLi3Ag trigonal pyramids. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one Ag3+ atom. In the third F1- site, F1- is bonded in a 2-coordinate geometry to two equivalent Li1+ and two equivalent Ag3+ atoms.
DOI: 10.17188/1290995
title: Materials Data on LiTi(PO3)4 by Materials Project

description: LiTi(PO3)4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Li1+ is bonded in a distorted water-like geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 1.86–2.65 Å. Ti3+ is bonded to six O2- atoms to form distorted TiO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Ti–O bond distances ranging from 2.00–2.17 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one TiO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedral tilt angles are 17°. There are a spread of P–O bond distances ranging from 1.48–1.63 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent TiO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 13–21°. There are a spread of P–O bond distances ranging from 1.49–1.63 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one TiO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedral tilt angles are 57°. There are a spread of P–O bond distances ranging from 1.48–1.62 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent TiO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 35–46°. There are a spread of P–O bond distances ranging from 1.50–1.62 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to one Ti3+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Li1+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ti3+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the seventh O2- site, O2- is bonded in a distorted linear geometry to one Ti3+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the ninth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the tenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti3+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to one Li1+, one Ti3+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to one Ti3+ and one P5+ atom.
DOI: 10.17188/1290996
title: Materials Data on LiTiP2O7 by Materials Project

description: LiTiP2O7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.15–2.74 Å. Ti3+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Ti–O bond distances ranging from 1.96–2.14 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent TiO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 37–51°. There are a spread of P–O bond distances ranging from 1.53–1.64 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent TiO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 45–60°. There are a spread of P–O bond distances ranging from 1.51–1.63 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li1+, one Ti3+, and one P5+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Ti3+ and one P5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Ti3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+ and two P5+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Ti3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Ti3+, and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ti3+ and one P5+ atom.
DOI: 10.17188/1290997
title: Materials Data on LiCu(PO3)3 by Materials Project

description: LiCu(PO3)3 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Li1+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 1.92–2.46 Å. Cu2+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.87–2.04 Å. There are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.50–1.62 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.49–1.62 Å. In the third P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.61 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cu2+, and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Cu2+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to one Cu2+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to one Li1+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to one Cu2+ and one P5+ atom.
DOI: 10.17188/1290998
title: Materials Data on Li3Ti(PO4)2 by Materials Project

description: Li3Ti(PO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 2.00–2.24 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with six PO4 tetrahedra and edges with two equivalent TiO6 octahedra. There are a spread of Li–O bond distances ranging from 2.00–2.71 Å. In the third Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.99–2.69 Å. Ti3+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six PO4 tetrahedra and edges with two equivalent LiO6 octahedra. There are a spread of Ti–O bond distances ranging from 2.05–2.10 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent LiO6 octahedra and corners with three equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 43–63°. There are a spread of P–O bond distances ranging from 1.52–1.58 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent LiO6 octahedra and corners with three equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 41–55°. There are a spread of P–O bond distances ranging from 1.51–1.58 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Ti3+, and one P5+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Ti3+, and one P5+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Ti3+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Ti3+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to two Li1+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Ti3+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to three Li1+, one Ti3+, and one P5+ atom.
DOI: 10.17188/1291000
title: Materials Data on Na4H2RuN6O13 by Materials Project

description: RuNa4N6H2O13 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional and consists of four ruthenium molecules and one Na4N6H2O13 framework. In the Na4N6H2O13 framework, there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to seven O2- atoms to form distorted edge-sharing NaO7 pentagonal bipyramids. There are a spread of Na–O bond distances ranging from 2.43–2.60 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.38–2.75 Å. There are three inequivalent N+2.33+ sites. In the first N+2.33+ site, N+2.33+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.26 Å. In the second N+2.33+ site, N+2.33+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) N–O bond length. In the third N+2.33+ site, N+2.33+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.26 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Na1+ and one N+2.33+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one N+2.33+ atom. In the third O2- site, O2- is bonded to three Na1+ and one N+2.33+ atom to form distorted edge-sharing ONa3N trigonal pyramids. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to two equivalent Na1+ and two equivalent H1+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Na1+ and one N+2.33+ atom. In the sixth O2- site, O2- is bonded in a trigonal planar geometry to two Na1+ and one N+2.33+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Na1+ and one N+2.33+ atom.
DOI: 10.17188/1291002
title: Materials Data on NaZn2HSe2O7 by Materials Project

description: NaZn2HSe2O7 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Na1+ is bonded to four O2- atoms to form distorted NaO4 tetrahedra that share corners with five ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 63–78°. There are three shorter (2.33 Å) and one longer (2.38 Å) Na–O bond lengths. There are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with two equivalent NaO4 tetrahedra and edges with four ZnO6 octahedra. There are two shorter (2.04 Å) and four longer (2.18 Å) Zn–O bond lengths. In the second Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with three equivalent NaO4 tetrahedra and edges with two equivalent ZnO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.07–2.22 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. There are two inequivalent Se4+ sites. In the first Se4+ site, Se4+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.73 Å) and two longer (1.74 Å) Se–O bond length. In the second Se4+ site, Se4+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is two shorter (1.73 Å) and one longer (1.76 Å) Se–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Zn2+ and one Se4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+, one Zn2+, and one Se4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three Zn2+ and one H1+ atom. In the fourth O2- site, O2- is bonded to one Na1+, two equivalent Zn2+, and one Se4+ atom to form distorted corner-sharing ONaZn2Se tetrahedra. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Na1+, one Zn2+, and one Se4+ atom.