cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17188/1272224
title: Materials Data on Ce4Si2S3O7 by Materials Project

description: Ce4Si2S3O7 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. there are two inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded in a 9-coordinate geometry to three S2- and six O2- atoms. There are one shorter (2.93 Å) and two longer (2.96 Å) Ce–S bond lengths. There are four shorter (2.51 Å) and two longer (2.63 Å) Ce–O bond lengths. In the second Ce3+ site, Ce3+ is bonded in a 6-coordinate geometry to three S2- and three O2- atoms. There are one shorter (2.87 Å) and two longer (2.88 Å) Ce–S bond lengths. There are one shorter (2.42 Å) and two longer (2.55 Å) Ce–O bond lengths. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one SCe4O2 octahedra and a cornercorner with one SiO4 tetrahedra. The corner-sharing octahedral tilt angles are 65°. There are a spread of Si–O bond distances ranging from 1.64–1.66 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to four Ce3+ atoms. In the second S2- site, S2- is bonded in a distorted square co-planar geometry to four equivalent Ce3+ atoms. In the third S2- site, S2- is bonded to four equivalent Ce3+ and two equivalent O2- atoms to form distorted SCe4O2 octahedra that share corners with four equivalent SiO4 tetrahedra. Both S–O bond lengths are 3.28 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Si4+ and one S2- atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Ce3+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Ce3+ and one Si4+ atom.
DOI: 10.17188/1272225
title: Materials Data on Cs7O by Materials Project

description: Cs7O crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. there are seven inequivalent Cs sites. In the first Cs site, Cs is bonded to twelve Cs atoms to form distorted CsCs12 cuboctahedra that share corners with six equivalent CsCs12 cuboctahedra, corners with four equivalent OCs6 octahedra, edges with two equivalent CsCs12 cuboctahedra, and faces with two equivalent CsCs12 cuboctahedra. The corner-sharing octahedral tilt angles are 33°. There are a spread of Cs–Cs bond distances ranging from 5.35–5.65 Å. In the second Cs site, Cs is bonded in a single-bond geometry to two equivalent Cs and one O atom. The Cs–O bond length is 2.77 Å. In the third Cs site, Cs is bonded in a see-saw-like geometry to four Cs atoms. Both Cs–Cs bond lengths are 5.41 Å. In the fourth Cs site, Cs is bonded in a see-saw-like geometry to four Cs atoms. Both Cs–Cs bond lengths are 5.49 Å. In the fifth Cs site, Cs is bonded in an L-shaped geometry to four Cs and two equivalent O atoms. Both Cs–O bond lengths are 2.94 Å. In the sixth Cs site, Cs is bonded in a distorted T-shaped geometry to three equivalent O atoms. All Cs–O bond lengths are 2.99 Å. In the seventh Cs site, Cs is bonded in a 6-coordinate geometry to six equivalent Cs atoms. O is bonded to six Cs atoms to form OCs6 octahedra that share corners with four equivalent CsCs12 cuboctahedra and faces with two equivalent OCs6 octahedra.
DOI: 10.17188/1272226
title: Materials Data on Ba2NiMoO6 (SG:225) 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: 10.17188/1272227
title: Materials Data on CsErS2 by Materials Project

description: CsErS2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Cs1+ is bonded in a 6-coordinate geometry to six equivalent S2- atoms. All Cs–S bond lengths are 3.48 Å. Er3+ is bonded to six equivalent S2- atoms to form edge-sharing ErS6 octahedra. All Er–S bond lengths are 2.76 Å. S2- is bonded to three equivalent Cs1+ and three equivalent Er3+ atoms to form a mixture of distorted edge and corner-sharing SCs3Er3 octahedra. The corner-sharing octahedral tilt angles are 0°.
DOI: 10.17188/1272228
title: Materials Data on Cr3O8 (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: 10.17188/1272230
title: Materials Data on Ba6Na2Mn2Ru2O17 (SG:194) 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: 10.17188/1272231
title: Materials Data on Cs(TeO3)2 by Materials Project

description: Cs(TeO3)2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Cs is bonded to six O atoms to form CsO6 octahedra that share corners with twelve TeO6 octahedra. The corner-sharing octahedra tilt angles range from 64–72°. There are three shorter (3.22 Å) and three longer (3.24 Å) Cs–O bond lengths. There are two inequivalent Te sites. In the first Te site, Te is bonded to six O atoms to form TeO6 octahedra that share corners with six equivalent CsO6 octahedra and corners with six TeO6 octahedra. The corner-sharing octahedra tilt angles range from 42–69°. There is two shorter (1.94 Å) and four longer (1.99 Å) Te–O bond length. In the second Te site, Te is bonded to six equivalent O atoms to form TeO6 octahedra that share corners with six equivalent CsO6 octahedra and corners with six equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 44–72°. All Te–O bond lengths are 2.11 Å. There are two inequivalent O sites. In the first O site, O is bonded in a 2-coordinate geometry to one Cs and two equivalent Te atoms. In the second O site, O is bonded in a 2-coordinate geometry to one Cs and two Te atoms.
DOI: 10.17188/1272232
title: Materials Data on Yb(GaS2)2 by Materials Project

description: Yb(GaS2)2 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. there are three inequivalent Yb2+ sites. In the first Yb2+ site, Yb2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Yb–S bond distances ranging from 2.97–3.07 Å. In the second Yb2+ site, Yb2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are four shorter (2.99 Å) and four longer (3.05 Å) Yb–S bond lengths. In the third Yb2+ site, Yb2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are four shorter (3.00 Å) and four longer (3.03 Å) Yb–S bond lengths. There are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded to four S2- atoms to form a mixture of corner and edge-sharing GaS4 tetrahedra. There are a spread of Ga–S bond distances ranging from 2.27–2.32 Å. In the second Ga3+ site, Ga3+ is bonded to four S2- atoms to form a mixture of corner and edge-sharing GaS4 tetrahedra. There are a spread of Ga–S bond distances ranging from 2.27–2.32 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to two Yb2+ and two equivalent Ga3+ atoms. In the second S2- site, S2- is bonded to two Yb2+ and two Ga3+ atoms to form a mixture of distorted corner and edge-sharing SYb2Ga2 trigonal pyramids. In the third S2- site, S2- is bonded in a 4-coordinate geometry to two Yb2+ and two equivalent Ga3+ atoms. In the fourth S2- site, S2- is bonded in a 4-coordinate geometry to two Yb2+ and two Ga3+ atoms.
DOI: 10.17188/1272233
title: Materials Data on Mg2As2O7 by Materials Project

description: Mg2As2O7 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Mg2+ is bonded to six O2- atoms to form distorted MgO6 pentagonal pyramids that share corners with six equivalent AsO4 tetrahedra and edges with three equivalent MgO6 pentagonal pyramids. There are a spread of Mg–O bond distances ranging from 2.08–2.23 Å. As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share corners with six equivalent MgO6 pentagonal pyramids and a cornercorner with one AsO4 tetrahedra. There are a spread of As–O bond distances ranging from 1.70–1.74 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Mg2+ and one As5+ atom. In the second O2- site, O2- is bonded in a linear geometry to two equivalent As5+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Mg2+ and one As5+ atom.
DOI: 10.17188/1272234
title: Materials Data on KCrO2 (SG:166) 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: 10.17188/1272235
title: Materials Data on K2Mo4O13 (SG:2) 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: 10.17188/1272236
title: Materials Data on YbBi2ClO4 by Materials Project

description: YbBi2O4Cl is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal P4mm space group. The structure is three-dimensional. Yb3+ is bonded in a body-centered cubic geometry to eight O2- atoms. All Yb–O bond lengths are 2.42 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to four equivalent O2- and four equivalent Cl1- atoms. All Bi–O bond lengths are 2.22 Å. All Bi–Cl bond lengths are 3.42 Å. In the second Bi3+ site, Bi3+ is bonded in a 4-coordinate geometry to four equivalent O2- and four equivalent Cl1- atoms. All Bi–O bond lengths are 2.22 Å. All Bi–Cl bond lengths are 3.43 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Yb3+ and two equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OYb2Bi2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Yb3+ and two equivalent Bi3+ atoms to form a mixture of edge and corner-sharing OYb2Bi2 tetrahedra. Cl1- is bonded in a body-centered cubic geometry to eight Bi3+ atoms.
DOI: 10.17188/1272237
title: Materials Data on RbB5O8 by Materials Project

description: RbB5O8 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Rb1+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Rb–O bond distances ranging from 2.98–3.45 Å. There are five inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.36 Å) and two longer (1.39 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.35–1.40 Å. In the third B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.40 Å. In the fourth B3+ site, B3+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of B–O bond distances ranging from 1.47–1.49 Å. In the fifth B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.40 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Rb1+ and two B3+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Rb1+ and two B3+ atoms. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Rb1+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Rb1+ and two B3+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Rb1+ and two B3+ atoms. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to two B3+ atoms. In the seventh O2- site, O2- is bonded in a bent 120 degrees geometry to one Rb1+ and two B3+ atoms. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Rb1+ and two B3+ atoms.
DOI: 10.17188/1272238
title: Materials Data on Ag2PS3 by Materials Project

description: Ag2PS3 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. there are four inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a 5-coordinate geometry to five S2- atoms. There are a spread of Ag–S bond distances ranging from 2.52–3.22 Å. In the second Ag1+ site, Ag1+ is bonded in a 2-coordinate geometry to five S2- atoms. There are a spread of Ag–S bond distances ranging from 2.53–3.18 Å. In the third Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to five S2- atoms. There are a spread of Ag–S bond distances ranging from 2.58–3.40 Å. In the fourth Ag1+ site, Ag1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Ag–S bond distances ranging from 2.66–3.15 Å. There are two inequivalent P4+ sites. In the first P4+ site, P4+ is bonded in a trigonal non-coplanar geometry to three S2- atoms. There are a spread of P–S bond distances ranging from 2.04–2.07 Å. In the second P4+ site, P4+ is bonded in a trigonal non-coplanar geometry to three S2- atoms. There are a spread of P–S bond distances ranging from 2.02–2.08 Å. There are six inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to four Ag1+ and one P4+ atom. In the second S2- site, S2- is bonded in a 4-coordinate geometry to three Ag1+ and one P4+ atom. In the third S2- site, S2- is bonded in a 4-coordinate geometry to three Ag1+ and one P4+ atom. In the fourth S2- site, S2- is bonded in a 4-coordinate geometry to three Ag1+ and one P4+ atom. In the fifth S2- site, S2- is bonded in a 5-coordinate geometry to four Ag1+ and one P4+ atom. In the sixth S2- site, S2- is bonded in a 5-coordinate geometry to four Ag1+ and one P4+ atom.
DOI: 10.17188/1272239
title: Materials Data on Sr2Mn3(BiO)2 (SG:139) 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: 10.17188/1272240
title: Materials Data on Cr3CuO8 (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: 10.17188/1272241
title: Materials Data on Cs3TlF6 by Materials Project

description: Cs3TlF6 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a linear geometry to two equivalent F1- atoms. Both Cs–F bond lengths are 2.86 Å. In the second Cs1+ site, Cs1+ is bonded to eight F1- atoms to form distorted CsF8 hexagonal bipyramids that share corners with four equivalent CsF8 hexagonal bipyramids, edges with six equivalent CsF8 hexagonal bipyramids, and edges with four equivalent TlF6 octahedra. There are four shorter (2.92 Å) and four longer (3.56 Å) Cs–F bond lengths. Tl3+ is bonded to six F1- atoms to form TlF6 octahedra that share edges with eight equivalent CsF8 hexagonal bipyramids. There are four shorter (2.17 Å) and two longer (2.30 Å) Tl–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to two equivalent Cs1+ and one Tl3+ atom. In the second F1- site, F1- is bonded in a distorted linear geometry to five Cs1+ and one Tl3+ atom.
DOI: 10.17188/1272242
title: Materials Data on KFeP2O7 (SG:14) 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: 10.17188/1272243
title: Materials Data on Cs2CoS2 by Materials Project

description: Cs2CoS2 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Cs1+ is bonded in a 6-coordinate geometry to six equivalent S2- atoms. There are a spread of Cs–S bond distances ranging from 3.47–3.84 Å. Co2+ is bonded to four equivalent S2- atoms to form distorted edge-sharing CoS4 tetrahedra. All Co–S bond lengths are 2.32 Å. S2- is bonded in a 2-coordinate geometry to six equivalent Cs1+ and two equivalent Co2+ atoms.
DOI: 10.17188/1272244
title: Materials Data on Cs4CO4 by Materials Project

description: Cs4CO4 crystallizes in the monoclinic C2 space group. The structure is two-dimensional and consists of one Cs4CO4 sheet oriented in the (0, 0, 1) direction. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cs–O bond distances ranging from 2.83–2.91 Å. In the second Cs1+ site, Cs1+ is bonded in a 1-coordinate geometry to five O2- atoms. There are a spread of Cs–O bond distances ranging from 2.89–3.69 Å. C4+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.43 Å) and two longer (1.44 Å) C–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to four Cs1+ and one C4+ atom.
DOI: 10.17188/1272245
title: Materials Data on Ba2Fe2Se2OF2 (SG:139) 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: 10.17188/1272246
title: Materials Data on YbAu2F9 by Materials Project

description: YbAu2F9 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are two inequivalent Yb3+ sites. In the first Yb3+ site, Yb3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Yb–F bond distances ranging from 2.19–2.42 Å. In the second Yb3+ site, Yb3+ is bonded in a distorted body-centered cubic geometry to eight F1- atoms. There are a spread of Yb–F bond distances ranging from 2.20–2.40 Å. There are three inequivalent Au3+ sites. In the first Au3+ site, Au3+ is bonded in a rectangular see-saw-like geometry to four F1- atoms. There is two shorter (1.94 Å) and two longer (1.95 Å) Au–F bond length. In the second Au3+ site, Au3+ is bonded in a distorted rectangular see-saw-like geometry to four F1- atoms. There are a spread of Au–F bond distances ranging from 1.93–1.96 Å. In the third Au3+ site, Au3+ is bonded in a rectangular see-saw-like geometry to four F1- atoms. There are a spread of Au–F bond distances ranging from 1.94–1.96 Å. There are fourteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to one Au3+ atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Au3+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Au3+ atom. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the sixth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the eighth F1- site, F1- is bonded in a linear geometry to two Yb3+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the tenth F1- site, F1- is bonded in a linear geometry to one Yb3+ and one Au3+ atom. In the eleventh F1- site, F1- is bonded in a bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the twelfth F1- site, F1- is bonded in a bent 150 degrees geometry to one Yb3+ and one Au3+ atom. In the thirteenth F1- site, F1- is bonded in a linear geometry to two equivalent Yb3+ atoms. In the fourteenth F1- site, F1- is bonded in a distorted bent 120 degrees geometry to one Yb3+ and one Au3+ atom.
DOI: 10.17188/1272247
title: Materials Data on ZnNi(PO3)4 (SG:15) 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: 10.17188/1272248
title: Materials Data on C3O2 by Materials Project

description: C3O2 is Cyanogen Chloride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of eight hydroxypropinol molecules. there are three inequivalent C+1.33+ sites. In the first C+1.33+ site, C+1.33+ is bonded in a single-bond geometry to one C+1.33+ and one O2- atom. The C–C bond length is 1.28 Å. The C–O bond length is 1.18 Å. In the second C+1.33+ site, C+1.33+ is bonded in a single-bond geometry to one C+1.33+ and one O2- atom. The C–C bond length is 1.28 Å. The C–O bond length is 1.18 Å. In the third C+1.33+ site, C+1.33+ is bonded in a linear geometry to two C+1.33+ atoms. There are two 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.
DOI: 10.17188/1272249
title: Materials Data on Gd2S2O by Materials Project

description: Gd2S2O crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Gd3+ sites. In the first Gd3+ site, Gd3+ is bonded in a 1-coordinate geometry to six S2- and one O2- atom. There are a spread of Gd–S bond distances ranging from 2.78–2.96 Å. The Gd–O bond length is 2.29 Å. In the second Gd3+ site, Gd3+ is bonded in a 7-coordinate geometry to four S2- and three equivalent O2- atoms. There are a spread of Gd–S bond distances ranging from 2.81–3.17 Å. There are a spread of Gd–O bond distances ranging from 2.29–2.32 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to five Gd3+ atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to five Gd3+ atoms. O2- is bonded to four Gd3+ atoms to form a mixture of edge and corner-sharing OGd4 tetrahedra.