cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.ug9hjw
title: Occurrence Download

description: A dataset containing 21 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Zimbabwe",
 "OccurrenceStatus is Present",
 "TaxonKey is Harpagophytum DC. ex Meisn."
 ]
}

 The dataset includes 21 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036231-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y6dzsx
title: Occurrence Download

description: A dataset containing 401 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "Country is Colombia",
 "TaxonKey is Rattus rattus (Linnaeus, 1758)"
 ]
}

 The dataset includes 401 records from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0013622-210819072339941/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bu2asg
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON ((5.025 51.275,5.075 51.275,5.075 51.325,5.025 51.325,5.025 51.275))",
 "DatasetKey is Observation.org, Nature data from around the World",
 "TaxonKey is Animalia"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0305720-200613084148143/datasets/export for details.
DOI: 10.15468/dl.sx9rpu
title: Occurrence Download

description: A dataset containing 326 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Year 2012-2013",
 "TaxonKey is Orcinus orca (Linnaeus, 1758)"
 ]
}

 The dataset includes 326 records from 32 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001161-190918142434337/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ywh1gu
title: Occurrence Download

description: A dataset containing 11 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "TaxonKey is Sabal bermudana L.H.Bailey",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 11 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0007649-180508205500799/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3hr27s
title: Occurrence Download

description: A dataset containing 1232 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is SILENE-FAUNE-PACA - GEN_TEREO_2017_12_18"
 ]
}

 The dataset includes 1232 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0232439-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.tyh23x
title: Occurrence Download

description: A dataset containing 28438 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Observation, Machine Observation, Specimen)",
 "Country is Saint Vincent and the Grenadines",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 28438 records from 154 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036233-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2zilrl
title: Occurrence Download

description: A dataset containing 61 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Zosterornis whiteheadi Ogilvie-Grant, 1894",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 61 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001162-150831095807960/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fduawd
title: Occurrence Download

description: A dataset containing 13718189 species occurrences available in GBIF matching the query:
{
 "Country" : [
 "is Mexico"
 ]
}

 The dataset includes 13718189 records from 2300 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0007649-181003121212138/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17188/1277742
title: Materials Data on Fe(BW)2 by Materials Project

description: Fe(WB)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. W2+ is bonded in a distorted hexagonal planar geometry to six equivalent B3- atoms. There are two shorter (2.32 Å) and four longer (2.35 Å) W–B bond lengths. Fe2+ is bonded in a square co-planar geometry to four equivalent B3- atoms. All Fe–B bond lengths are 2.28 Å. B3- is bonded in a 9-coordinate geometry to six equivalent W2+, two equivalent Fe2+, and one B3- atom. The B–B bond length is 1.86 Å.
DOI: 10.17188/1277743
title: Materials Data on Na4CoAuO5 (SG:63) 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: 10.17188/1277744
title: Materials Data on LiCaAlF6 by Materials Project

description: LiCaAlF6 is beta Vanadium nitride-derived structured and crystallizes in the trigonal P-31c space group. The structure is three-dimensional. Li1+ is bonded to six equivalent F1- atoms to form LiF6 octahedra that share corners with six equivalent CaF6 octahedra and edges with three equivalent AlF6 octahedra. The corner-sharing octahedral tilt angles are 57°. All Li–F bond lengths are 2.04 Å. Ca2+ is bonded to six equivalent F1- atoms to form CaF6 octahedra that share corners with six equivalent LiF6 octahedra and corners with six equivalent AlF6 octahedra. The corner-sharing octahedra tilt angles range from 46–57°. All Ca–F bond lengths are 2.31 Å. Al3+ is bonded to six equivalent F1- atoms to form AlF6 octahedra that share corners with six equivalent CaF6 octahedra and edges with three equivalent LiF6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Al–F bond lengths are 1.83 Å. F1- is bonded in a distorted trigonal planar geometry to one Li1+, one Ca2+, and one Al3+ atom.
DOI: 10.17188/1277745
title: Materials Data on SrZrO3 by Materials Project

description: SrZrO3 is (Cubic) Perovskite structured and crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional and consists of one SrO3 framework and one zirconium molecule. In the SrO3 framework, Sr2+ is bonded to six O2- atoms to form corner-sharing SrO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Sr–O bond distances ranging from 2.19–2.22 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two equivalent Sr2+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent Sr2+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two equivalent Sr2+ atoms.
DOI: 10.17188/1277746
title: Materials Data on LiIO3 (SG:173) 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: 10.17188/1277747
title: Materials Data on Yb(ReO4)3 by Materials Project

description: Yb(ReO4)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. Yb3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are six shorter (2.41 Å) and three longer (2.54 Å) Yb–O bond lengths. Re7+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.73 Å) and three longer (1.76 Å) Re–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Yb3+ and one Re7+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one Re7+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Yb3+ and one Re7+ atom.
DOI: 10.17188/1277748
title: Materials Data on Ba2PrIrO6 by Materials Project

description: Ba2PrIrO6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ba2+ is bonded to twelve equivalent O2- atoms to form BaO12 cuboctahedra that share corners with twelve equivalent BaO12 cuboctahedra, faces with six equivalent BaO12 cuboctahedra, faces with four equivalent PrO6 octahedra, and faces with four equivalent IrO6 octahedra. All Ba–O bond lengths are 3.06 Å. Pr3+ is bonded to six equivalent O2- atoms to form PrO6 octahedra that share corners with six equivalent IrO6 octahedra and faces with eight equivalent BaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Pr–O bond lengths are 2.33 Å. Ir5+ is bonded to six equivalent O2- atoms to form IrO6 octahedra that share corners with six equivalent PrO6 octahedra and faces with eight equivalent BaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ir–O bond lengths are 1.98 Å. O2- is bonded in a distorted linear geometry to four equivalent Ba2+, one Pr3+, and one Ir5+ atom.
DOI: 10.17188/1277749
title: Materials Data on K2SbF5 by Materials Project

description: K2SbF5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 7-coordinate geometry to seven F1- atoms. There are a spread of K–F bond distances ranging from 2.53–3.14 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven F1- atoms. There are a spread of K–F bond distances ranging from 2.71–2.98 Å. Sb3+ is bonded in a square pyramidal geometry to five F1- atoms. There are a spread of Sb–F bond distances ranging from 1.97–2.15 Å. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded to three K1+ and one Sb3+ atom to form a mixture of distorted corner, edge, and face-sharing FK3Sb trigonal pyramids. In the second F1- site, F1- is bonded in a 2-coordinate geometry to three K1+ and one Sb3+ atom. In the third F1- site, F1- is bonded to three K1+ and one Sb3+ atom to form a mixture of distorted corner, edge, and face-sharing FK3Sb trigonal pyramids. In the fourth F1- site, F1- is bonded in a distorted single-bond geometry to two K1+ and one Sb3+ atom. In the fifth F1- site, F1- is bonded in a 4-coordinate geometry to three K1+ and one Sb3+ atom.
DOI: 10.17188/1277750
title: Materials Data on Fe3C by Materials Project

description: Fe3C is Upper Bainite-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Fe sites. In the first Fe site, Fe is bonded in a distorted bent 120 degrees geometry to two equivalent C atoms. There is one shorter (1.90 Å) and one longer (1.91 Å) Fe–C bond length. In the second Fe site, Fe is bonded in a distorted bent 120 degrees geometry to two equivalent C atoms. Both Fe–C bond lengths are 1.93 Å. C is bonded to six Fe atoms to form corner-sharing CFe6 octahedra. The corner-sharing octahedra tilt angles range from 48–51°.
DOI: 10.17188/1277751
title: Materials Data on RhSe2Cl7 by Materials Project

description: RhSeCl5SeCl2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four selenium dichloride molecules and two RhSeCl5 clusters. In each RhSeCl5 cluster, Rh3+ is bonded in a rectangular see-saw-like geometry to four Cl1- atoms. There are a spread of Rh–Cl bond distances ranging from 2.36–2.46 Å. Se2+ is bonded in a 4-coordinate geometry to four Cl1- atoms. There are a spread of Se–Cl bond distances ranging from 2.19–2.87 Å. There are five inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Rh3+ and one Se2+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se2+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Se2+ atom. In the fourth Cl1- site, Cl1- is bonded in a water-like geometry to two equivalent Rh3+ atoms. In the fifth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Rh3+ and one Se2+ atom.
DOI: 10.17188/1277753
title: Materials Data on Yb(Fe2Ge)2 by Materials Project

description: Yb(Fe2Ge)2 crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Yb is bonded in a 6-coordinate geometry to twelve equivalent Fe and six equivalent Ge atoms. There are four shorter (3.12 Å) and eight longer (3.30 Å) Yb–Fe bond lengths. There are two shorter (2.91 Å) and four longer (2.92 Å) Yb–Ge bond lengths. Fe is bonded in a 3-coordinate geometry to three equivalent Yb and three equivalent Ge atoms. There are two shorter (2.43 Å) and one longer (2.45 Å) Fe–Ge bond lengths. Ge is bonded in a 9-coordinate geometry to three equivalent Yb and six equivalent Fe atoms.
DOI: 10.17188/1277754
title: Materials Data on Rh2O3 by Materials Project

description: Rh2O3 is Corundum-like structured and crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. there are two inequivalent Rh3+ sites. In the first Rh3+ site, Rh3+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 46–64°. There are a spread of Rh–O bond distances ranging from 2.04–2.09 Å. In the second Rh3+ site, Rh3+ is bonded to six O2- atoms to form a mixture of corner, edge, and face-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 49–70°. There are a spread of Rh–O bond distances ranging from 2.05–2.17 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Rh3+ atoms to form a mixture of distorted corner and edge-sharing ORh4 trigonal pyramids. In the second O2- site, O2- is bonded to four Rh3+ atoms to form a mixture of distorted corner and edge-sharing ORh4 trigonal pyramids. In the third O2- site, O2- is bonded to four Rh3+ atoms to form a mixture of distorted corner and edge-sharing ORh4 tetrahedra.
DOI: 10.17188/1277755
title: Materials Data on PbClF by Materials Project

description: PbFCl crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one PbFCl sheet oriented in the (0, 0, 1) direction. Pb2+ is bonded in a distorted single-bond geometry to four equivalent Cl1- and one F1- atom. All Pb–Cl bond lengths are 2.97 Å. The Pb–F bond length is 2.21 Å. Cl1- is bonded to four equivalent Pb2+ atoms to form a mixture of distorted edge and corner-sharing ClPb4 tetrahedra. F1- is bonded in a single-bond geometry to one Pb2+ atom.
DOI: 10.17188/1277756
title: Materials Data on GdMnGe by Materials Project

description: GdMnGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Gd is bonded in a 5-coordinate geometry to five equivalent Ge atoms. There are four shorter (2.93 Å) and one longer (2.95 Å) Gd–Ge bond lengths. Mn is bonded in a 3-coordinate geometry to four equivalent Ge atoms. There are a spread of Mn–Ge bond distances ranging from 2.44–2.91 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Gd and four equivalent Mn atoms.
DOI: 10.17188/1277757
title: Materials Data on Mg4P6SN12 by Materials Project

description: Mg4P6N12S crystallizes in the cubic I-43m space group. The structure is three-dimensional. Mg2+ is bonded to three equivalent N3- and one S2- atom to form MgSN3 tetrahedra that share corners with three equivalent MgSN3 tetrahedra and corners with six equivalent PN4 tetrahedra. All Mg–N bond lengths are 2.08 Å. The Mg–S bond length is 2.47 Å. P5+ is bonded to four equivalent N3- atoms to form PN4 tetrahedra that share corners with four equivalent MgSN3 tetrahedra and corners with four equivalent PN4 tetrahedra. All P–N bond lengths are 1.64 Å. N3- is bonded in a trigonal planar geometry to one Mg2+ and two equivalent P5+ atoms. S2- is bonded in a tetrahedral geometry to four equivalent Mg2+ atoms.
DOI: 10.17188/1277758
title: Materials Data on K2PdN2(ClO2)2 by Materials Project

description: K2PdN2(O2Cl)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to five O2- and three Cl1- atoms to form distorted edge-sharing KCl3O5 hexagonal bipyramids. There are a spread of K–O bond distances ranging from 2.90–3.03 Å. There are a spread of K–Cl bond distances ranging from 3.16–3.25 Å. In the second K1+ site, K1+ is bonded to five O2- and three Cl1- atoms to form distorted edge-sharing KCl3O5 hexagonal bipyramids. There are a spread of K–O bond distances ranging from 2.89–3.02 Å. There are a spread of K–Cl bond distances ranging from 3.16–3.24 Å. Pd2+ is bonded in a distorted rectangular see-saw-like geometry to two N3+ and two Cl1- atoms. Both Pd–N bond lengths are 2.07 Å. Both Pd–Cl bond lengths are 2.34 Å. There are two inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to one Pd2+ and two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the second N3+ site, N3+ is bonded in a bent 120 degrees geometry to one Pd2+ and two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three K1+ and one N3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three K1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one N3+ atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 4-coordinate geometry to three K1+ and one Pd2+ atom. In the second Cl1- site, Cl1- is bonded in a 4-coordinate geometry to three K1+ and one Pd2+ atom.
DOI: 10.17188/1277759
title: Materials Data on Yb3Si2ClO8 by Materials Project

description: Yb3(SiO4)2Cl crystallizes in the orthorhombic Pnma 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 seven O2- and one Cl1- atom. There are a spread of Yb–O bond distances ranging from 2.29–2.64 Å. The Yb–Cl bond length is 2.93 Å. In the second Yb3+ site, Yb3+ is bonded in a 8-coordinate geometry to six O2- and two equivalent Cl1- atoms. There are a spread of Yb–O bond distances ranging from 2.32–2.58 Å. There are one shorter (2.83 Å) and one longer (2.92 Å) Yb–Cl bond lengths. Si4+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.63 Å) and three longer (1.64 Å) Si–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Yb3+ and one Si4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Yb3+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Yb3+ and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Yb3+ and one Si4+ atom. Cl1- is bonded in a distorted square co-planar geometry to four Yb3+ atoms.
DOI: 10.17188/1277760
title: Materials Data on Na2TiSiO5 by Materials Project

description: Na2TiSiO5 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Na1+ is bonded to six O2- atoms to form NaO6 octahedra that share corners with two equivalent NaO6 octahedra, corners with four equivalent SiO4 tetrahedra, corners with two equivalent TiO5 trigonal bipyramids, edges with four equivalent NaO6 octahedra, and edges with two equivalent TiO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 55°. There are four shorter (2.33 Å) and two longer (2.60 Å) Na–O bond lengths. Ti4+ is bonded to five O2- atoms to form distorted TiO5 trigonal bipyramids that share corners with four equivalent NaO6 octahedra, corners with four equivalent SiO4 tetrahedra, and edges with four equivalent NaO6 octahedra. The corner-sharing octahedral tilt angles are 63°. There is one shorter (1.72 Å) and four longer (2.01 Å) Ti–O bond length. Si4+ is bonded to four equivalent O2- atoms to form SiO4 tetrahedra that share corners with eight equivalent NaO6 octahedra and corners with four equivalent TiO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 60°. All Si–O bond lengths are 1.65 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to four equivalent Na1+ and one Ti4+ atom. In the second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+, one Ti4+, and one Si4+ atom.
DOI: 10.17188/1277761
title: Materials Data on KIO3 (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: 10.17188/1277762
title: Materials Data on Eu(MgGe)3 by Materials Project

description: Eu(MgGe)3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are three inequivalent Mg sites. In the first Mg site, Mg is bonded to four Ge atoms to form a mixture of corner and edge-sharing MgGe4 tetrahedra. There are two shorter (2.73 Å) and two longer (2.80 Å) Mg–Ge bond lengths. In the second Mg site, Mg is bonded to four Ge atoms to form a mixture of corner and edge-sharing MgGe4 tetrahedra. There are two shorter (2.76 Å) and two longer (2.78 Å) Mg–Ge bond lengths. In the third Mg site, Mg is bonded to four equivalent Ge atoms to form a mixture of corner and edge-sharing MgGe4 tetrahedra. There are two shorter (2.74 Å) and two longer (2.80 Å) Mg–Ge bond lengths. Eu is bonded in a 2-coordinate geometry to ten Ge atoms. There are a spread of Eu–Ge bond distances ranging from 3.17–3.46 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Eu and three Ge atoms. There are one shorter (2.50 Å) and two longer (2.52 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four Mg, four equivalent Eu, and one Ge atom. In the third Ge site, Ge is bonded in a body-centered cubic geometry to eight Mg atoms.