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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
Co(SO4)2(NH2)4 crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of four ammonia molecules and one Co(SO4)2 ribbon oriented in the (1, 0, 0) direction. In the Co(SO4)2 ribbon, Co2+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Co–O bond distances ranging from 2.03–2.08 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.47–1.53 Å. In the second S2- site, S2- is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.47–1.52 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Co2+ and one S2- atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Co2+ and one S2- atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Co2+ and one S2- atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Co2+ and one S2- atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one S2- atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one S2- atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one S2- atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one S2- atom.
Ni(SO4)2(NH2)4 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of four ammonia molecules and one Ni(SO4)2 ribbon oriented in the (1, 0, 0) direction. In the Ni(SO4)2 ribbon, Ni2+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.03 Å) and two longer (2.08 Å) Ni–O bond lengths. S2- is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.47–1.52 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Ni2+ and one S2- atom. In the second O2- site, O2- is bonded in a single-bond geometry to one S2- atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ni2+ and one S2- atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one S2- atom.
CuSb6O8(SO4)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one CuSb6O8(SO4)2 sheet oriented in the (0, 0, 1) direction. Cu2+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.97 Å) and two longer (2.01 Å) Cu–O bond length. There are three inequivalent Sb+4.33+ sites. In the first Sb+4.33+ site, Sb+4.33+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Sb–O bond distances ranging from 2.04–2.43 Å. In the second Sb+4.33+ site, Sb+4.33+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Sb–O bond distances ranging from 2.04–2.33 Å. In the third Sb+4.33+ site, Sb+4.33+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There are a spread of Sb–O bond distances ranging from 2.02–2.34 Å. S2+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.47–1.52 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cu2+ and two Sb+4.33+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Sb+4.33+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sb+4.33+ and one S2+ atom. In the fourth O2- site, O2- is bonded in a trigonal planar geometry to one Cu2+ and two Sb+4.33+ atoms. In the fifth O2- site, O2- is bonded in a single-bond geometry to one S2+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to three Sb+4.33+ atoms. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sb+4.33+ and one S2+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one S2+ atom.
Co2Tl2(SO4)3 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are two inequivalent Co4+ sites. In the first Co4+ site, Co4+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent SO4 tetrahedra. There are three shorter (2.10 Å) and three longer (2.12 Å) Co–O bond lengths. In the second Co4+ site, Co4+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent SO4 tetrahedra. There are three shorter (2.11 Å) and three longer (2.15 Å) Co–O bond lengths. There are two inequivalent Tl3+ sites. In the first Tl3+ site, Tl3+ is bonded in a 3-coordinate geometry to three equivalent O2- atoms. All Tl–O bond lengths are 2.90 Å. In the second Tl3+ site, Tl3+ is bonded in a 3-coordinate geometry to three equivalent O2- atoms. All Tl–O bond lengths are 2.94 Å. S+3.33+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four CoO6 octahedra. The corner-sharing octahedra tilt angles range from 14–49°. There are a spread of S–O bond distances ranging from 1.48–1.50 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Co4+, one Tl3+, and one S+3.33+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Co4+ and one S+3.33+ atom. In the third O2- site, O2- is bonded in a distorted linear geometry to one Co4+ and one S+3.33+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Co4+, one Tl3+, and one S+3.33+ atom.
Co3C10O9Co5C14(SO4)3 is alpha La structured and crystallizes in the monoclinic Cc space group. The structure is zero-dimensional and consists of four Co3C10O9 clusters and four Co5C14(SO4)3 clusters. In each Co3C10O9 cluster, there are three inequivalent Co2+ sites. In the first Co2+ site, Co2+ is bonded in a 4-coordinate geometry to four C+1.33+ atoms. There are a spread of Co–C bond distances ranging from 1.77–1.92 Å. In the second Co2+ site, Co2+ is bonded in a 4-coordinate geometry to four C+1.33+ atoms. There are a spread of Co–C bond distances ranging from 1.76–1.93 Å. In the third Co2+ site, Co2+ is bonded in a 4-coordinate geometry to four C+1.33+ atoms. There are a spread of Co–C bond distances ranging from 1.76–1.92 Å. There are ten inequivalent C+1.33+ sites. In the first C+1.33+ site, C+1.33+ is bonded in a 3-coordinate geometry to three Co2+ atoms. In the second C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the third C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.15 Å. In the fifth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the seventh C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the ninth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.15 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In each Co5C14(SO4)3 cluster, there are five inequivalent Co2+ sites. In the first Co2+ site, Co2+ is bonded in a 2-coordinate geometry to three C+1.33+ and two S2- atoms. There are a spread of Co–C bond distances ranging from 1.75–1.95 Å. There are one shorter (2.18 Å) and one longer (2.29 Å) Co–S bond lengths. In the second Co2+ site, Co2+ is bonded in a 4-coordinate geometry to four C+1.33+ atoms. There are a spread of Co–C bond distances ranging from 1.78–1.93 Å. In the third Co2+ site, Co2+ is bonded in a 2-coordinate geometry to three C+1.33+ and two S2- atoms. There are a spread of Co–C bond distances ranging from 1.75–1.95 Å. There are one shorter (2.18 Å) and one longer (2.29 Å) Co–S bond lengths. In the fourth Co2+ site, Co2+ is bonded in a 4-coordinate geometry to three C+1.33+ and one S2- atom. There are a spread of Co–C bond distances ranging from 1.76–1.88 Å. The Co–S bond length is 2.34 Å. In the fifth Co2+ site, Co2+ is bonded in a 4-coordinate geometry to three C+1.33+ and one S2- atom. There are a spread of Co–C bond distances ranging from 1.76–1.89 Å. The Co–S bond length is 2.34 Å. There are fourteen inequivalent C+1.33+ sites. In the first C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the second C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the third C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+1.33+ site, C+1.33+ is bonded in a distorted trigonal planar geometry to one Co2+ and two S2- atoms. Both C–S bond lengths are 1.74 Å. In the fifth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C+1.33+ site, C+1.33+ is bonded in a distorted single-bond geometry to two Co2+ and one O2- atom. The C–O bond length is 1.19 Å. In the seventh C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.15 Å. In the ninth C+1.33+ site, C+1.33+ is bonded in a 1-coordinate geometry to two Co2+ and one S2- atom. The C–S bond length is 1.75 Å. In the tenth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the eleventh C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the twelfth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the thirteenth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourteenth C+1.33+ site, C+1.33+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to two Co2+ and one C+1.33+ atom. In the second S2- site, S2- is bonded in a 3-coordinate geometry to two Co2+ and one C+1.33+ atom. In the third S2- site, S2- is bonded in a 3-coordinate geometry to two Co2+ and one C+1.33+ atom. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one C+1.33+ atom.
Yb2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Yb3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Yb–O bond distances ranging from 2.30–2.73 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are a spread of Co–O bond distances ranging from 1.86–2.03 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.85–1.99 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are a spread of S–O bond distances ranging from 1.47–1.53 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Yb3+ and one S6+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Yb3+ and one S6+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Yb3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Yb3+, one Co2+, and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Yb3+, one Co2+, and one Te4+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Yb3+ and one Te4+ atom.
CoBi6(SO8)2 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Co4+ is bonded to six O2- atoms to form distorted CoO6 octahedra that share corners with four equivalent SO4 tetrahedra. There are a spread of Co–O bond distances ranging from 1.94–2.45 Å. There are three inequivalent Bi4+ sites. In the first Bi4+ site, Bi4+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Bi–O bond distances ranging from 2.22–2.30 Å. In the second Bi4+ site, Bi4+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Bi–O bond distances ranging from 2.22–2.52 Å. In the third Bi4+ site, Bi4+ is bonded in a 4-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.17–3.00 Å. S2+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with two equivalent CoO6 octahedra. The corner-sharing octahedra tilt angles range from 23–31°. There are a spread of S–O bond distances ranging from 1.47–1.52 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded to four Bi4+ atoms to form distorted edge-sharing OBi4 tetrahedra. In the second O2- site, O2- is bonded to four Bi4+ atoms to form edge-sharing OBi4 tetrahedra. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Co4+ and one S2+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Co4+, one Bi4+, and one S2+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one S2+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one Bi4+ and one S2+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Co4+ and two Bi4+ atoms. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to four Bi4+ atoms. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to four Bi4+ atoms.
NaAu(SO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.34–2.79 Å. Au3+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.03 Å) and two longer (2.05 Å) Au–O bond lengths. S6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.44–1.56 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Au3+ and one S6+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Au3+, and one S6+ atom. In the third O2- site, O2- is bonded in a distorted linear geometry to one Na1+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Na1+ and one S6+ atom.
Sm2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Sm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sm–O bond distances ranging from 2.35–2.60 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are a spread of Co–O bond distances ranging from 2.06–2.14 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.90–1.92 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are a spread of S–O bond distances ranging from 1.47–1.52 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Sm3+ and one S6+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Sm3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Sm3+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Sm3+ and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Sm3+, one Co2+, and one Te4+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Sm3+, one Co2+, and one Te4+ atom.
Ho2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Ho3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ho–O bond distances ranging from 2.26–2.57 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are a spread of Co–O bond distances ranging from 2.05–2.13 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.90–1.92 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of S–O bond distances ranging from 1.48–1.51 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Ho3+ and one S6+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ho3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Ho3+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ho3+ and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Ho3+, one Co2+, and one Te4+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Ho3+, one Co2+, and one Te4+ atom.
Dy2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Dy3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Dy–O bond distances ranging from 2.27–2.57 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are a spread of Co–O bond distances ranging from 2.05–2.14 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is two shorter (1.91 Å) and one longer (1.92 Å) Te–O bond length. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of S–O bond distances ranging from 1.48–1.51 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Dy3+ and one S6+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Dy3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Dy3+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Dy3+ and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Dy3+, one Co2+, and one Te4+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Dy3+, one Co2+, and one Te4+ atom.
Gd2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Gd3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Gd–O bond distances ranging from 2.31–2.59 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are two shorter (2.05 Å) and four longer (2.13 Å) Co–O bond lengths. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.90–1.92 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 44°. There is three shorter (1.48 Å) and one longer (1.51 Å) S–O bond length. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Gd3+ and one S6+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Gd3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Gd3+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Gd3+ and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Gd3+, one Co2+, and one Te4+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one Gd3+, one Co2+, and one Te4+ atom.
Y2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Y3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.28–2.57 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are two shorter (2.06 Å) and four longer (2.14 Å) Co–O bond lengths. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.90–1.92 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of S–O bond distances ranging from 1.48–1.51 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Y3+ and one Te4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Y3+, one Co2+, and one Te4+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Y3+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Y3+, one Co2+, and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to one Y3+ and one S6+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Y3+ and one S6+ atom.
Tb2CoTe2(SO7)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Tb4+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Tb–O bond distances ranging from 2.29–2.57 Å. Co4+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SO4 tetrahedra. There are two shorter (2.05 Å) and four longer (2.13 Å) Co–O bond lengths. Te6+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.90–1.92 Å. S2+ is bonded to four O2- atoms to form SO4 tetrahedra that share a cornercorner with one CoO6 octahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of S–O bond distances ranging from 1.48–1.51 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Tb4+ and one S2+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Co4+ and one S2+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Tb4+ and one S2+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Tb4+ and one S2+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Tb4+ and one Te6+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Tb4+, one Co4+, and one Te6+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Tb4+, one Co4+, and one Te6+ atom.
KAu(SO4)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to ten O2- atoms. There are a spread of K–O bond distances ranging from 2.86–3.39 Å. Au3+ is bonded in a square co-planar geometry to four O2- atoms. There are two shorter (2.04 Å) and two longer (2.05 Å) Au–O bond lengths. S6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of S–O bond distances ranging from 1.44–1.57 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one S6+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Au3+, and one S6+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Au3+, and one S6+ atom.
Large-scale stationary storage forms a key sector that can be economically served by sodium-ion batteries. In realizing practical sodium-ion batteries, discovery and development of novel cathodes is essential. In this spirit, alluaudite-type Na 2 Fe 2 (SO 4 ) 3 was reported in 2014 to have the highest Fe 3+ /Fe 2+ redox potential (~3.8 V vs. Na). This finding led to reports on various PO4 3– and SO4 2– based alluaudite compounds exhibiting high energy densities. In 2017, MoO 4 2– based alluaudite, Na 2.67 Mn 1.67 (MoO 4 ) 3 , was found as a 3.45 V cathode material. Exploring molybdenum chemistry further, this work reports alluaudite type Na 3.36 Co 1.32 (MoO 4 ) 3 (NCMo) as a novel versatile electroactive cathode for Li-ion and Na-ion batteries. It was synthesized by a wet solution-combustion route with a restricted annealing duration of 1 min at 600 °C. Calorimetric study revealed the formation enthalpy from component oxides (ΔH° f,ox = –575.49 ± 7.75 kJ/mol) to be highly exothermic. Unlike the sulfate class of alluaudites, this material is highly stable in air and moisture (ΔH ds = 537.42 ± 0.78 kJ/mol). Having an ionic conductivity of 6.065 × 10 –8 S/cm (at 50 °C), it offers a pseudo two-dimensional Na + migration pathway. Without any material optimization, NCMo was found to work as a high-voltage insertion cathode (ca. 4.0 V vs. Na/Na + and 4.1 V vs. Li/Li + ) in sync with theoretically predicted potential of 3.98 V (vs. Na/Na + ). Ex-situ X-ray diffraction and photoelectron spectroscopy studies revealed the occurrence of solid-solution redox mechanism solely involving Co 3+ /Co 2+ redox centre. Finally, it benchmarks Na 3.36 Co 1.32 (MoO 4 ) 3 as a novel electrochemically active Mo-based alluaudite-type polyanionic cathode insertion material.
Ion exchange (IX) resins are used in pump-and-treat (P&T) facilities to remove soluble groundwater contaminants. However, natural anions present at concentrations orders of magnitude higher than contaminants can compete for IX sites and impact resin lifecycles. Here, the Hanford Site’s 200 West Area P&T facility (Washington State, USA) was selected as a case study because it currently uses two IX resins: Purolite® A532E (A532E) to remove pertechnetate (TcO 4 - ) and DOWEX 21K (DOWEX) to remove uranium from groundwater. Nitrate (NO 3 - ), sulfate (SO 4 2- ), chloride (Cl - ), and carbonate (CO 3 2- ) anions have been identified to potentially compete for A532E and DOWEX IX sites. Hanford-relevant anion groundwater concentrations were used to design a series of laboratory-scale batch experiments to evaluate the impact of competing anions on resin performance and potential kinetic effects. These data are then modeled to obtain Cl--normalized equilibrium exchange coefficients (K) needed to predict IX resin performance. The work is presented in two parts, with IX performance evaluated for A532E in Part I and DOWEX in Part II. Part I results demonstrate that TcO 4 - uptake is not impacted by NO 3 - , SO 4 2- , Cl - , CO 3 2- (as HCO 3 - ) and U(VI) carbonate anions, with K TcO4-/Cl- > 4,000, likely due to the high selectivity of A532E trihexylammonium sites for the large, weakly hydrated TcO 4 - anion. Other anion K values were K NO3-/Cl- = 20, K SO4--/Cl- = 0.2, K HCO3-/Cl- = 0.09, K U/Cl- = 370–1000. These K values provide conservative parameters for predicting A532E performance, and demonstrate that, under these test conditions, A532E will remove TcO 4 - from current and future influent streams to meet groundwater treatment objectives.