Search NASA⌕ Search

SEARCH · Search NASA

Results for “Pyrite”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 199 records · Page 11

Materials Data on FeCu3S8 by Materials Project

FeCu3S8 is Pyrite-derived structured and crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Fe3+ is bonded to six equivalent S1- atoms to form FeS6 octahedra that share corners with twelve equivalent CuS6 octahedra and corners with six equivalent SFeCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 64–65°. All Fe–S bond lengths are 2.30 Å. Cu+1.67+ is bonded to six S1- atoms to form CuS6 octahedra that share corners with four equivalent FeS6 octahedra, corners with eight equivalent CuS6 octahedra, and corners with six SFeCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 64–69°. There are a spread of Cu–S bond distances ranging from 2.40–2.47 Å. There are two inequivalent S1- sites. In the first S1- site, S1- is bonded to one Fe3+, two equivalent Cu+1.67+, and one S1- atom to form distorted SFeCu2S tetrahedra that share a cornercorner with one FeS6 octahedra, corners with two equivalent CuS6 octahedra, and corners with fifteen SFeCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 69–80°. The S–S bond length is 2.09 Å. In the second S1- site, S1- is bonded to three equivalent Cu+1.67+ and one S1- atom to form distorted SCu3S tetrahedra that share corners with three equivalent CuS6 octahedra and corners with fifteen SFeCu2S tetrahedra. The corner-sharing octahedral tilt angles are 74°. The S–S bond length is 2.02 Å.

36 MATERIALS SCIENCE↗

Materials Data on CuNi3S8 by Materials Project

Ni3CuS8 is Pyrite-derived structured and crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Ni2+ is bonded to six S1- atoms to form NiS6 octahedra that share corners with four equivalent CuS6 octahedra, corners with eight equivalent NiS6 octahedra, and corners with six SNi3S tetrahedra. The corner-sharing octahedra tilt angles range from 64–68°. There are a spread of Ni–S bond distances ranging from 2.36–2.40 Å. Cu2+ is bonded to six equivalent S1- atoms to form CuS6 octahedra that share corners with twelve equivalent NiS6 octahedra and corners with six equivalent SCuNi2S tetrahedra. The corner-sharing octahedra tilt angles range from 67–68°. All Cu–S bond lengths are 2.45 Å. There are two inequivalent S1- sites. In the first S1- site, S1- is bonded to three equivalent Ni2+ and one S1- atom to form distorted SNi3S tetrahedra that share corners with three equivalent NiS6 octahedra and corners with fifteen SNi3S tetrahedra. The corner-sharing octahedral tilt angles are 76°. The S–S bond length is 2.07 Å. In the second S1- site, S1- is bonded to two equivalent Ni2+, one Cu2+, and one S1- atom to form distorted SCuNi2S tetrahedra that share a cornercorner with one CuS6 octahedra, corners with two equivalent NiS6 octahedra, and corners with fifteen SNi3S tetrahedra. The corner-sharing octahedra tilt angles range from 73–79°. The S–S bond length is 2.07 Å.

36 MATERIALS SCIENCE↗

Materials Data on CoTe2 by Materials Project

CoTe2 is Pyrite structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Co4+ is bonded to six equivalent Te2- atoms to form corner-sharing CoTe6 octahedra. The corner-sharing octahedral tilt angles are 62°. All Co–Te bond lengths are 2.60 Å. Te2- is bonded in a distorted trigonal planar geometry to three equivalent Co4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on CoNiSe4 by Materials Project

CoNiSe4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Co4+ is bonded to six Se2- atoms to form CoSe6 octahedra that share corners with four equivalent CoSe6 octahedra and corners with eight equivalent NiSe6 octahedra. The corner-sharing octahedra tilt angles range from 62–64°. There are two shorter (2.40 Å) and four longer (2.42 Å) Co–Se bond lengths. Ni4+ is bonded to six Se2- atoms to form NiSe6 octahedra that share corners with four equivalent NiSe6 octahedra and corners with eight equivalent CoSe6 octahedra. The corner-sharing octahedra tilt angles range from 62–65°. There are a spread of Ni–Se bond distances ranging from 2.45–2.50 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 3-coordinate geometry to one Co4+ and two equivalent Ni4+ atoms. In the second Se2- site, Se2- is bonded in a 3-coordinate geometry to two equivalent Co4+ and one Ni4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on FeNiS4 by Materials Project

FeNiS4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Fe3+ is bonded to six S+1.75- atoms to form FeS6 octahedra that share corners with four equivalent FeS6 octahedra and corners with eight equivalent NiS6 octahedra. The corner-sharing octahedra tilt angles range from 62–66°. There are a spread of Fe–S bond distances ranging from 2.25–2.29 Å. Ni4+ is bonded to six S+1.75- atoms to form NiS6 octahedra that share corners with four equivalent NiS6 octahedra and corners with eight equivalent FeS6 octahedra. The corner-sharing octahedra tilt angles range from 64–67°. There are a spread of Ni–S bond distances ranging from 2.34–2.36 Å. There are two inequivalent S+1.75- sites. In the first S+1.75- site, S+1.75- is bonded in a 4-coordinate geometry to one Fe3+, two equivalent Ni4+, and one S+1.75- atom. The S–S bond length is 2.10 Å. In the second S+1.75- site, S+1.75- is bonded in a 4-coordinate geometry to two equivalent Fe3+, one Ni4+, and one S+1.75- atom. The S–S bond length is 2.20 Å.

36 MATERIALS SCIENCE↗

Materials Data on MgMnTe4 by Materials Project

MgMnTe4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Mg2+ is bonded to six Te+1.50- atoms to form MgTe6 octahedra that share corners with four equivalent MgTe6 octahedra and corners with eight equivalent MnTe6 octahedra. The corner-sharing octahedra tilt angles range from 64–66°. There are four shorter (2.96 Å) and two longer (2.99 Å) Mg–Te bond lengths. Mn4+ is bonded to six Te+1.50- atoms to form MnTe6 octahedra that share corners with four equivalent MnTe6 octahedra and corners with eight equivalent MgTe6 octahedra. The corner-sharing octahedra tilt angles range from 63–65°. There are two shorter (2.89 Å) and four longer (2.91 Å) Mn–Te bond lengths. There are two inequivalent Te+1.50- sites. In the first Te+1.50- site, Te+1.50- is bonded in a 4-coordinate geometry to one Mg2+, two equivalent Mn4+, and one Te+1.50- atom. The Te–Te bond length is 2.81 Å. In the second Te+1.50- site, Te+1.50- is bonded in a 4-coordinate geometry to two equivalent Mg2+, one Mn4+, and one Te+1.50- atom. The Te–Te bond length is 2.80 Å.

36 MATERIALS SCIENCE↗

Materials Data on NiRuS4 by Materials Project

RuNiS4 is Pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ru6+ is bonded to six S2- atoms to form RuS6 octahedra that share corners with four equivalent RuS6 octahedra, corners with eight equivalent NiS6 octahedra, and corners with six SNiRu2S tetrahedra. The corner-sharing octahedra tilt angles range from 65–66°. There are two shorter (2.36 Å) and four longer (2.37 Å) Ru–S bond lengths. Ni2+ is bonded to six S2- atoms to form NiS6 octahedra that share corners with four equivalent NiS6 octahedra, corners with eight equivalent RuS6 octahedra, and corners with six SNiRu2S tetrahedra. The corner-sharing octahedra tilt angles range from 65–66°. There are a spread of Ni–S bond distances ranging from 2.35–2.41 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Ru6+, one Ni2+, and one S2- atom to form distorted SNiRu2S tetrahedra that share a cornercorner with one NiS6 octahedra, corners with two equivalent RuS6 octahedra, and corners with fifteen SNiRu2S tetrahedra. The corner-sharing octahedra tilt angles range from 76–77°. The S–S bond length is 2.18 Å. In the second S2- site, S2- is bonded to one Ru6+, two equivalent Ni2+, and one S2- atom to form distorted SNi2RuS tetrahedra that share a cornercorner with one RuS6 octahedra, corners with two equivalent NiS6 octahedra, and corners with fifteen SNiRu2S tetrahedra. The corner-sharing octahedra tilt angles range from 74–77°. The S–S bond length is 2.09 Å.

36 MATERIALS SCIENCE↗

Materials Data on OsN2 by Materials Project

OsN2 is Pyrite structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Os6+ is bonded to six equivalent N3- atoms to form OsN6 octahedra that share corners with twelve equivalent OsN6 octahedra and corners with six equivalent NOs3N tetrahedra. The corner-sharing octahedral tilt angles are 70°. All Os–N bond lengths are 2.11 Å. N3- is bonded to three equivalent Os6+ and one N3- atom to form NOs3N tetrahedra that share corners with three equivalent OsN6 octahedra and corners with fifteen equivalent NOs3N tetrahedra. The corner-sharing octahedral tilt angles are 71°. The N–N bond length is 1.42 Å.

36 MATERIALS SCIENCE↗

Materials Data on CrCuS4 by Materials Project

CrCuS4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cr6+ is bonded to six S2- atoms to form CrS6 octahedra that share corners with four equivalent CrS6 octahedra, corners with eight equivalent CuS6 octahedra, and corners with two equivalent SCrCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 63–67°. There are four shorter (2.38 Å) and two longer (2.40 Å) Cr–S bond lengths. Cu2+ is bonded to six S2- atoms to form CuS6 octahedra that share corners with four equivalent CuS6 octahedra, corners with eight equivalent CrS6 octahedra, and corners with four equivalent SCrCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 65–68°. There are a spread of Cu–S bond distances ranging from 2.44–2.51 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to one Cr6+, two equivalent Cu2+, and one S2- atom to form distorted SCrCu2S tetrahedra that share a cornercorner with one CrS6 octahedra, corners with two equivalent CuS6 octahedra, and corners with seven equivalent SCrCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 72–77°. The S–S bond length is 2.08 Å. In the second S2- site, S2- is bonded in a 4-coordinate geometry to two equivalent Cr6+, one Cu2+, and one S2- atom. The S–S bond length is 2.19 Å.

36 MATERIALS SCIENCE↗

Materials Data on CoCuS4 by Materials Project

CoCuS4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Co2+ is bonded to six S1- atoms to form CoS6 octahedra that share corners with four equivalent CoS6 octahedra, corners with eight equivalent CuS6 octahedra, and corners with six SCoCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 62–68°. There are a spread of Co–S bond distances ranging from 2.30–2.33 Å. Cu2+ is bonded to six S1- atoms to form CuS6 octahedra that share corners with four equivalent CuS6 octahedra, corners with eight equivalent CoS6 octahedra, and corners with six SCoCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 65–69°. There are a spread of Cu–S bond distances ranging from 2.39–2.53 Å. There are two inequivalent S1- sites. In the first S1- site, S1- is bonded to one Co2+, two equivalent Cu2+, and one S1- atom to form distorted SCoCu2S tetrahedra that share a cornercorner with one CoS6 octahedra, corners with two equivalent CuS6 octahedra, and corners with fifteen SCoCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 69–80°. The S–S bond length is 2.07 Å. In the second S1- site, S1- is bonded to two equivalent Co2+, one Cu2+, and one S1- atom to form distorted SCo2CuS tetrahedra that share a cornercorner with one CuS6 octahedra, corners with two equivalent CoS6 octahedra, and corners with fifteen SCoCu2S tetrahedra. The corner-sharing octahedra tilt angles range from 73–83°. The S–S bond length is 2.13 Å.

36 MATERIALS SCIENCE↗

Materials Data on HfN2 by Materials Project

HfN2 is Pyrite-like structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Hf4+ is bonded to six equivalent N2- atoms to form HfN6 octahedra that share corners with twelve equivalent HfN6 octahedra and corners with six equivalent NHf3N tetrahedra. The corner-sharing octahedral tilt angles are 70°. All Hf–N bond lengths are 2.21 Å. N2- is bonded to three equivalent Hf4+ and one N2- atom to form NHf3N tetrahedra that share corners with three equivalent HfN6 octahedra and corners with fifteen equivalent NHf3N tetrahedra. The corner-sharing octahedral tilt angles are 71°. The N–N bond length is 1.51 Å.

36 MATERIALS SCIENCE↗

Materials Data on GeP2 by Materials Project

GeP2 is Pyrite structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Ge4+ is bonded to six equivalent P2- atoms to form GeP6 octahedra that share corners with twelve equivalent GeP6 octahedra and corners with six equivalent PGe3P tetrahedra. The corner-sharing octahedral tilt angles are 67°. All Ge–P bond lengths are 2.54 Å. P2- is bonded to three equivalent Ge4+ and one P2- atom to form PGe3P tetrahedra that share corners with three equivalent GeP6 octahedra and corners with fifteen equivalent PGe3P tetrahedra. The corner-sharing octahedral tilt angles are 75°. The P–P bond length is 2.14 Å.

36 MATERIALS SCIENCE↗

Materials Data on CoRhS4 by Materials Project

RhCoS4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Rh4+ is bonded to six S2- atoms to form RhS6 octahedra that share corners with four equivalent RhS6 octahedra, corners with eight equivalent CoS6 octahedra, and corners with six SCoRh2S tetrahedra. The corner-sharing octahedra tilt angles range from 64–67°. There are a spread of Rh–S bond distances ranging from 2.38–2.41 Å. Co4+ is bonded to six S2- atoms to form CoS6 octahedra that share corners with four equivalent CoS6 octahedra, corners with eight equivalent RhS6 octahedra, and corners with six SCoRh2S tetrahedra. The corner-sharing octahedra tilt angles range from 64–66°. There are two shorter (2.32 Å) and four longer (2.34 Å) Co–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Rh4+, one Co4+, and one S2- atom to form distorted SCoRh2S tetrahedra that share a cornercorner with one CoS6 octahedra, corners with two equivalent RhS6 octahedra, and corners with fifteen SCoRh2S tetrahedra. The corner-sharing octahedra tilt angles range from 74–78°. The S–S bond length is 2.17 Å. In the second S2- site, S2- is bonded to one Rh4+, two equivalent Co4+, and one S2- atom to form distorted SCo2RhS tetrahedra that share a cornercorner with one RhS6 octahedra, corners with two equivalent CoS6 octahedra, and corners with fifteen SCoRh2S tetrahedra. The corner-sharing octahedra tilt angles range from 75–79°. The S–S bond length is 2.15 Å.

36 MATERIALS SCIENCE↗

Materials Data on SbTeRu by Materials Project

RuSbTe is Pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ru5+ is bonded to three equivalent Sb3- and three equivalent Te2- atoms to form RuSb3Te3 octahedra that share corners with eight equivalent RuSb3Te3 octahedra, corners with three equivalent TeSbRu3 tetrahedra, and edges with two equivalent RuSb3Te3 octahedra. The corner-sharing octahedra tilt angles range from 51–58°. There are one shorter (2.69 Å) and two longer (2.71 Å) Ru–Sb bond lengths. There are two shorter (2.61 Å) and one longer (2.62 Å) Ru–Te bond lengths. Sb3- is bonded in a 4-coordinate geometry to three equivalent Ru5+ and one Te2- atom. The Sb–Te bond length is 2.93 Å. Te2- is bonded to three equivalent Ru5+ and one Sb3- atom to form distorted TeSbRu3 tetrahedra that share corners with three equivalent RuSb3Te3 octahedra, corners with four equivalent TeSbRu3 tetrahedra, and an edgeedge with one TeSbRu3 tetrahedra. The corner-sharing octahedra tilt angles range from 76–80°.

36 MATERIALS SCIENCE↗

Materials Data on CdSe2 by Materials Project

CdSe2 is Pyrite structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Cd2+ is bonded to six equivalent Se1- atoms to form CdSe6 octahedra that share corners with twelve equivalent CdSe6 octahedra and corners with six equivalent SeCd3Se tetrahedra. The corner-sharing octahedral tilt angles are 67°. All Cd–Se bond lengths are 2.85 Å. Se1- is bonded to three equivalent Cd2+ and one Se1- atom to form distorted SeCd3Se tetrahedra that share corners with three equivalent CdSe6 octahedra and corners with fifteen equivalent SeCd3Se tetrahedra. The corner-sharing octahedral tilt angles are 75°. The Se–Se bond length is 2.40 Å.

36 MATERIALS SCIENCE↗

Materials Data on MgO2 by Materials Project

MgO2 is pyrite-like structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Mg is bonded to six equivalent O atoms to form edge-sharing MgO6 octahedra. All Mg–O bond lengths are 2.11 Å. O is bonded in a 4-coordinate geometry to three equivalent Mg and one O atom. The O–O bond length is 1.49 Å.

36 MATERIALS SCIENCE↗

Materials Data on FeSe2 by Materials Project

FeSe2 is pyrite-like structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Fe3+ is bonded to six equivalent Se+1.50- atoms to form corner-sharing FeSe6 octahedra. The corner-sharing octahedral tilt angles are 63°. All Fe–Se bond lengths are 2.40 Å. Se+1.50- is bonded in a distorted trigonal planar geometry to three equivalent Fe3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on FeNiTe4 by Materials Project

FeNiTe4 is pyrite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Fe3+ is bonded to six Te+1.75- atoms to form FeTe6 octahedra that share corners with four equivalent FeTe6 octahedra and corners with eight equivalent NiTe6 octahedra. The corner-sharing octahedra tilt angles range from 60–63°. There are a spread of Fe–Te bond distances ranging from 2.54–2.59 Å. Ni4+ is bonded to six Te+1.75- atoms to form NiTe6 octahedra that share corners with four equivalent NiTe6 octahedra and corners with eight equivalent FeTe6 octahedra. The corner-sharing octahedra tilt angles range from 60–64°. There are four shorter (2.64 Å) and two longer (2.67 Å) Ni–Te bond lengths. There are two inequivalent Te+1.75- sites. In the first Te+1.75- site, Te+1.75- is bonded in a 3-coordinate geometry to one Fe3+ and two equivalent Ni4+ atoms. In the second Te+1.75- site, Te+1.75- is bonded in a 3-coordinate geometry to two equivalent Fe3+ and one Ni4+ atom.

36 MATERIALS SCIENCE↗