cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17188/1208377
title: Materials Data on Na5Al3F14 by Materials Project

description: Na5Al3F14 crystallizes in the tetragonal P4/mnc space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a body-centered cubic geometry to eight equivalent F1- atoms. All Na–F bond lengths are 2.62 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to eight F1- atoms. There are a spread of Na–F bond distances ranging from 2.30–2.89 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six F1- atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedral tilt angles are 28°. There is two shorter (1.81 Å) and four longer (1.82 Å) Al–F bond length. In the second Al3+ site, Al3+ is bonded to six F1- atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedral tilt angles are 28°. There is four shorter (1.82 Å) and two longer (1.85 Å) Al–F bond length. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to four equivalent Na1+ and one Al3+ atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Na1+ and two Al3+ atoms. In the third F1- site, F1- is bonded in a 4-coordinate geometry to three Na1+ and one Al3+ atom.
DOI: 10.17188/1208378
title: Materials Data on Al2SiO5 by Materials Project

description: Al2SiO5 crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. there are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to six O2- atoms to form AlO6 octahedra that share corners with four equivalent SiO4 tetrahedra, corners with four equivalent AlO5 trigonal bipyramids, and edges with two equivalent AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.84–2.11 Å. In the second Al3+ site, Al3+ is bonded to five O2- atoms to form AlO5 trigonal bipyramids that share corners with four equivalent AlO6 octahedra, corners with four equivalent SiO4 tetrahedra, and an edgeedge with one AlO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 49–58°. There are a spread of Al–O bond distances ranging from 1.83–1.91 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent AlO6 octahedra and corners with four equivalent AlO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 55–69°. There are a spread of Si–O bond distances ranging from 1.64–1.66 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two Al3+ and one Si4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Al3+ and one Si4+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three Al3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Al3+ and one Si4+ atom.
DOI: 10.17188/1208379
title: Materials Data on Sc3Fe2Si3 by Materials Project

description: Sc3Fe2Si3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Sc+2.67+ sites. In the first Sc+2.67+ site, Sc+2.67+ is bonded to five Si4- atoms to form ScSi5 trigonal bipyramids that share corners with four equivalent FeSi4 tetrahedra, corners with six equivalent ScSi5 trigonal bipyramids, and edges with four equivalent FeSi4 tetrahedra. There are a spread of Sc–Si bond distances ranging from 2.71–3.08 Å. In the second Sc+2.67+ site, Sc+2.67+ is bonded in a 6-coordinate geometry to seven Si4- atoms. There are a spread of Sc–Si bond distances ranging from 2.80–3.14 Å. Fe2+ is bonded to four Si4- atoms to form FeSi4 tetrahedra that share corners with three equivalent FeSi4 tetrahedra, corners with two equivalent ScSi5 trigonal bipyramids, edges with two equivalent FeSi4 tetrahedra, and edges with two equivalent ScSi5 trigonal bipyramids. There are a spread of Fe–Si bond distances ranging from 2.26–2.44 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 9-coordinate geometry to seven Sc+2.67+ and two equivalent Fe2+ atoms. In the second Si4- site, Si4- is bonded in a 10-coordinate geometry to six Sc+2.67+, three equivalent Fe2+, and one Si4- atom. The Si–Si bond length is 2.55 Å.
DOI: 10.17188/1208380
title: Materials Data on ZnSnSb2 by Materials Project

description: Sb2SnZn is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Zn2+ is bonded to four equivalent Sb3- atoms to form ZnSb4 tetrahedra that share corners with four equivalent ZnSb4 tetrahedra and corners with eight equivalent SnSb4 tetrahedra. All Zn–Sb bond lengths are 2.68 Å. Sn4+ is bonded to four equivalent Sb3- atoms to form SnSb4 tetrahedra that share corners with four equivalent SnSb4 tetrahedra and corners with eight equivalent ZnSb4 tetrahedra. All Sn–Sb bond lengths are 2.87 Å. Sb3- is bonded to two equivalent Zn2+ and two equivalent Sn4+ atoms to form corner-sharing SbZn2Sn2 tetrahedra.
DOI: 10.17188/1208381
title: Materials Data on KReO4 by Materials Project

description: KReO4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are four shorter (2.86 Å) and four longer (2.95 Å) K–O bond lengths. Re7+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All Re–O bond lengths are 1.76 Å. O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one Re7+ atom.
DOI: 10.17188/1208382
title: Materials Data on K2NbF7 by Materials Project

description: K2NbF7 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 9-coordinate geometry to nine F1- atoms. There are a spread of K–F bond distances ranging from 2.70–3.01 Å. In the second K1+ site, K1+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of K–F bond distances ranging from 2.69–2.97 Å. Nb5+ is bonded in a distorted pentagonal bipyramidal geometry to seven F1- atoms. There are a spread of Nb–F bond distances ranging from 1.97–2.02 Å. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to three K1+ and one Nb5+ atom. In the second F1- site, F1- is bonded in a 1-coordinate geometry to three K1+ and one Nb5+ atom. In the third F1- site, F1- is bonded in a 3-coordinate geometry to two K1+ and one Nb5+ atom. In the fourth F1- site, F1- is bonded in a distorted single-bond geometry to two K1+ and one Nb5+ atom. In the fifth F1- site, F1- is bonded in a distorted single-bond geometry to two K1+ and one Nb5+ atom. In the sixth F1- site, F1- is bonded in a 4-coordinate geometry to three K1+ and one Nb5+ atom. In the seventh F1- site, F1- is bonded in a 1-coordinate geometry to three K1+ and one Nb5+ atom.
DOI: 10.17188/1208383
title: Materials Data on ZrTe3O8 by Materials Project

description: ZrTe3O8 crystallizes in the cubic Ia-3 space group. The structure is three-dimensional. Zr4+ is bonded in an octahedral geometry to six equivalent O2- atoms. All Zr–O bond lengths are 2.11 Å. Te4+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (1.89 Å) and two longer (2.19 Å) Te–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Zr4+ and one Te4+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Te4+ atoms.
DOI: 10.17188/1208384
title: Materials Data on Ge3N4 by Materials Project

description: Ge3N4 is Hausmannite structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. there are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to six equivalent N3- atoms to form GeN6 octahedra that share corners with six equivalent GeN4 tetrahedra and edges with six equivalent GeN6 octahedra. All Ge–N bond lengths are 2.01 Å. In the second Ge4+ site, Ge4+ is bonded to four equivalent N3- atoms to form corner-sharing GeN4 tetrahedra. The corner-sharing octahedral tilt angles are 57°. All Ge–N bond lengths are 1.92 Å. N3- is bonded to four Ge4+ atoms to form a mixture of distorted corner and edge-sharing NGe4 trigonal pyramids.
DOI: 10.17188/1208385
title: Materials Data on TlAg3S2 by Materials Project

description: Ag3TlS2 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are two inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a linear geometry to two equivalent S2- atoms. Both Ag–S bond lengths are 2.43 Å. In the second Ag1+ site, Ag1+ is bonded in a 3-coordinate geometry to two equivalent Tl1+ and three equivalent S2- atoms. There are one shorter (3.35 Å) and one longer (3.37 Å) Ag–Tl bond lengths. There are two shorter (2.53 Å) and one longer (2.69 Å) Ag–S bond lengths. Tl1+ is bonded in a 2-coordinate geometry to four equivalent Ag1+ and four equivalent S2- atoms. There are two shorter (3.09 Å) and two longer (3.43 Å) Tl–S bond lengths. S2- is bonded in a 4-coordinate geometry to four Ag1+ and two equivalent Tl1+ atoms.
DOI: 10.17188/1208386
title: Materials Data on ZnSiP2 by Materials Project

description: ZnSiP2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. The structure is three-dimensional and consists of one SiP2 framework and four zinc molecules. In the SiP2 framework, Si4- is bonded to four equivalent P1+ atoms to form corner-sharing SiP4 tetrahedra. All Si–P bond lengths are 2.27 Å. P1+ is bonded in a bent 120 degrees geometry to two equivalent Si4- atoms.
DOI: 10.17188/1208387
title: Materials Data on Pr2SeO2 by Materials Project

description: Pr2SeO2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Pr3+ is bonded in a 4-coordinate geometry to three equivalent Se2- and four equivalent O2- atoms. All Pr–Se bond lengths are 3.11 Å. There are one shorter (2.40 Å) and three longer (2.42 Å) Pr–O bond lengths. Se2- is bonded to six equivalent Pr3+ atoms to form distorted SePr6 octahedra that share corners with twelve equivalent OPr4 tetrahedra, edges with six equivalent SePr6 octahedra, and edges with six equivalent OPr4 tetrahedra. O2- is bonded to four equivalent Pr3+ atoms to form OPr4 tetrahedra that share corners with six equivalent SePr6 octahedra, corners with six equivalent OPr4 tetrahedra, edges with three equivalent SePr6 octahedra, and edges with three equivalent OPr4 tetrahedra. The corner-sharing octahedra tilt angles range from 27–49°.
DOI: 10.17188/1208388
title: Materials Data on Ce(SiOs)2 by Materials Project

description: CeOs2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ce3+ is bonded in a 8-coordinate geometry to eight equivalent Os+1.50- atoms. All Ce–Os bond lengths are 3.22 Å. Os+1.50- is bonded in a 4-coordinate geometry to four equivalent Ce3+ and four equivalent Si atoms. All Os–Si bond lengths are 2.41 Å. Si is bonded in a 5-coordinate geometry to four equivalent Os+1.50- and one Si atom. The Si–Si bond length is 2.52 Å.
DOI: 10.17188/1208389
title: Materials Data on Eu(SiNi)2 by Materials Project

description: EuNi2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Eu3+ is bonded in a distorted body-centered cubic geometry to eight equivalent Si4- atoms. All Eu–Si bond lengths are 3.13 Å. Ni+2.50+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing NiSi4 tetrahedra. All Ni–Si bond lengths are 2.32 Å. Si4- is bonded in a 9-coordinate geometry to four equivalent Eu3+, four equivalent Ni+2.50+, and one Si4- atom. The Si–Si bond length is 2.56 Å.
DOI: 10.17188/1208390
title: Materials Data on SiP2O7 by Materials Project

description: SiP2O7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Si4+ is bonded to six O2- atoms to form SiO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.75–1.80 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 SiO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 30–40°. There are a spread of P–O bond distances ranging from 1.52–1.60 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent SiO6 octahedra and a cornercorner with one PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 22–39°. There are a spread of P–O bond distances ranging from 1.51–1.60 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Si4+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to one Si4+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Si4+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Si4+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to one Si4+ 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 bent 150 degrees geometry to one Si4+ and one P5+ atom.
DOI: 10.17188/1208391
title: Materials Data on SmGa2 by Materials Project

description: SmGa2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Sm is bonded to twelve equivalent Ga atoms to form a mixture of edge and face-sharing SmGa12 cuboctahedra. All Sm–Ga bond lengths are 3.24 Å. Ga is bonded in a 9-coordinate geometry to six equivalent Sm and three equivalent Ga atoms. All Ga–Ga bond lengths are 2.46 Å.
DOI: 10.17188/1208392
title: Materials Data on Na2SO4 by Materials Project

description: Na2SO4 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Na1+ is bonded to six equivalent O2- atoms to form distorted NaO6 pentagonal pyramids that share corners with four equivalent NaO6 pentagonal pyramids, corners with four equivalent SO4 tetrahedra, edges with four equivalent NaO6 pentagonal pyramids, and an edgeedge with one SO4 tetrahedra. There are a spread of Na–O bond distances ranging from 2.37–2.56 Å. S6+ is bonded to four equivalent O2- atoms to form SO4 tetrahedra that share corners with eight equivalent NaO6 pentagonal pyramids and edges with two equivalent NaO6 pentagonal pyramids. All S–O bond lengths are 1.50 Å. O2- is bonded in a 4-coordinate geometry to three equivalent Na1+ and one S6+ atom.
DOI: 10.17188/1208393
title: Materials Data on TiAlCu2 by Materials Project

description: AlCu2Ti is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ti is bonded in a body-centered cubic geometry to eight equivalent Cu atoms. All Ti–Cu bond lengths are 2.61 Å. Cu is bonded in a body-centered cubic geometry to four equivalent Ti and four equivalent Al atoms. All Cu–Al bond lengths are 2.61 Å. Al is bonded in a body-centered cubic geometry to eight equivalent Cu atoms.
DOI: 10.17188/1208394
title: Materials Data on Li2B4O7 by Materials Project

description: Li2B4O7 crystallizes in the tetragonal I4_1cd space group. The structure is three-dimensional. Li1+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.99–2.12 Å. There are two inequivalent B3+ sites. In the first 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 1.37–1.39 Å. In the second B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.44–1.54 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Li1+ and two B3+ atoms to form distorted corner-sharing OLi2B2 tetrahedra. In the second O2- site, O2- is bonded in a water-like geometry to two equivalent B3+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a trigonal non-coplanar geometry to one Li1+ and two B3+ atoms.
DOI: 10.17188/1208395
title: Materials Data on CaSnF6 by Materials Project

description: CaSnF6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Ca2+ is bonded to six equivalent F1- atoms to form CaF6 octahedra that share corners with six equivalent SnF6 octahedra. The corner-sharing octahedral tilt angles are 23°. All Ca–F bond lengths are 2.27 Å. Sn4+ is bonded to six equivalent F1- atoms to form SnF6 octahedra that share corners with six equivalent CaF6 octahedra. The corner-sharing octahedral tilt angles are 23°. All Sn–F bond lengths are 2.00 Å. F1- is bonded in a bent 150 degrees geometry to one Ca2+ and one Sn4+ atom.
DOI: 10.17188/1208396
title: Materials Data on BaPrO3 by Materials Project

description: BaPrO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-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, and faces with eight equivalent PrO6 octahedra. All Ba–O bond lengths are 3.25 Å. Pr4+ is bonded to six equivalent O2- atoms to form PrO6 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 Pr–O bond lengths are 2.30 Å. O2- is bonded in a distorted linear geometry to four equivalent Ba2+ and two equivalent Pr4+ atoms.
DOI: 10.17188/1208397
title: Materials Data on CaPtO3 by Materials Project

description: CaPtO3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are two shorter (2.29 Å) and six longer (2.52 Å) Ca–O bond lengths. Pt4+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are two shorter (2.04 Å) and four longer (2.08 Å) Pt–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Ca2+ and two equivalent Pt4+ atoms. In the second O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Pt4+ atoms to form distorted corner-sharing OCa2Pt2 tetrahedra.
DOI: 10.17188/1208398
title: Materials Data on CeAl3Pd2 by Materials Project

description: CePd2Al3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Ce is bonded in a distorted hexagonal planar geometry to six equivalent Pd atoms. All Ce–Pd bond lengths are 3.14 Å. Pd is bonded in a 9-coordinate geometry to three equivalent Ce and six equivalent Al atoms. All Pd–Al bond lengths are 2.65 Å. Al is bonded in a 12-coordinate geometry to four equivalent Pd atoms.
DOI: 10.17188/1208399
title: Materials Data on K(OsO3)2 by Materials Project

description: KOs2O6 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. K1+ is bonded to six equivalent O2- atoms to form KO6 octahedra that share corners with twelve equivalent OsO6 octahedra. The corner-sharing octahedral tilt angles are 70°. All K–O bond lengths are 3.16 Å. Os+5.50+ is bonded to six equivalent O2- atoms to form OsO6 octahedra that share corners with six equivalent KO6 octahedra and corners with six equivalent OsO6 octahedra. The corner-sharing octahedra tilt angles range from 41–70°. All Os–O bond lengths are 1.93 Å. O2- is bonded in a distorted bent 150 degrees geometry to one K1+ and two equivalent Os+5.50+ atoms.
DOI: 10.17188/1208400
title: Materials Data on PrRhO3 by Materials Project

description: PrRhO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pr3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pr–O bond distances ranging from 2.35–2.75 Å. Rh3+ is bonded to six O2- atoms to form corner-sharing RhO6 octahedra. The corner-sharing octahedra tilt angles range from 35–36°. There are a spread of Rh–O bond distances ranging from 2.07–2.11 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Pr3+ and two equivalent Rh3+ atoms. In the second O2- site, O2- is bonded to two equivalent Pr3+ and two equivalent Rh3+ atoms to form distorted corner-sharing OPr2Rh2 trigonal pyramids.
DOI: 10.17188/1208401
title: Materials Data on ThGeO4 by Materials Project

description: ThGeO4 is Zircon structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Th4+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are four shorter (2.37 Å) and four longer (2.50 Å) Th–O bond lengths. Ge4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All Ge–O bond lengths are 1.78 Å. O2- is bonded in a 3-coordinate geometry to two equivalent Th4+ and one Ge4+ atom.
DOI: 10.17188/1208402
title: Materials Data on U(SiPd)2 by Materials Project

description: UPd2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. U4+ is bonded to eight equivalent Si4- atoms to form USi8 hexagonal bipyramids that share corners with sixteen equivalent PdSi4 tetrahedra, edges with four equivalent USi8 hexagonal bipyramids, edges with eight equivalent PdSi4 tetrahedra, and faces with four equivalent USi8 hexagonal bipyramids. All U–Si bond lengths are 3.09 Å. Pd2+ is bonded to four equivalent Si4- atoms to form PdSi4 tetrahedra that share corners with eight equivalent USi8 hexagonal bipyramids, corners with four equivalent PdSi4 tetrahedra, edges with four equivalent USi8 hexagonal bipyramids, and edges with four equivalent PdSi4 tetrahedra. All Pd–Si bond lengths are 2.49 Å. Si4- is bonded in a 9-coordinate geometry to four equivalent U4+, four equivalent Pd2+, and one Si4- atom. The Si–Si bond length is 2.30 Å.