SEARCH · Search NASA
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.
TiSe is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one TiSe sheet oriented in the (0, 0, 1) direction. Ti2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing TiSe4 tetrahedra. All Ti–Se bond lengths are 2.53 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Ti2+ atoms.
PbO is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one PbO sheet oriented in the (0, 0, 1) direction. Pb2+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Pb–O bond lengths are 2.35 Å. O2- is bonded to four equivalent Pb2+ atoms to form a mixture of edge and corner-sharing OPb4 tetrahedra.
FeSe is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one FeSe sheet oriented in the (0, 0, 1) direction. Fe2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing FeSe4 tetrahedra. All Fe–Se bond lengths are 2.30 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Fe2+ atoms.
SnO is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one SnO sheet oriented in the (0, 0, 1) direction. Sn2+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Sn–O bond lengths are 2.26 Å. O2- is bonded to four equivalent Sn2+ atoms to form a mixture of edge and corner-sharing OSn4 tetrahedra.
CuI is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuI sheet oriented in the (0, 0, 1) direction. Cu1+ is bonded to four equivalent I1- atoms to form a mixture of edge and corner-sharing CuI4 tetrahedra. All Cu–I bond lengths are 2.67 Å. I1- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms.
CuBr is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuBr sheet oriented in the (0, 0, 1) direction. Cu1+ is bonded to four equivalent Br1- atoms to form a mixture of edge and corner-sharing CuBr4 tetrahedra. All Cu–Br bond lengths are 2.52 Å. Br1- is bonded in a 4-coordinate geometry to four equivalent Cu1+ atoms.
InBi is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one InBi sheet oriented in the (0, 0, 1) direction. In is bonded to four equivalent Bi atoms to form a mixture of edge and corner-sharing InBi4 tetrahedra. All In–Bi bond lengths are 3.18 Å. Bi is bonded in a 4-coordinate geometry to four equivalent In atoms.
FeS is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one FeS sheet oriented in the (0, 0, 1) direction. Fe2+ is bonded to four equivalent S2- atoms to form a mixture of edge and corner-sharing FeS4 tetrahedra. All Fe–S bond lengths are 2.17 Å. S2- is bonded in a 4-coordinate geometry to four equivalent Fe2+ atoms.
SnO is lead oxide structured and crystallizes in the orthorhombic Pmn2_1 space group. The structure is two-dimensional and consists of one SnO sheet oriented in the (0, 0, 1) direction. Sn2+ is bonded in a distorted T-shaped geometry to three equivalent O2- atoms. There are one shorter (2.15 Å) and two longer (2.16 Å) Sn–O bond lengths. O2- is bonded in a trigonal planar geometry to three equivalent Sn2+ atoms.
SnO is lead oxide structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is two-dimensional and consists of two SnO sheets oriented in the (0, 0, 1) direction. Sn2+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Sn–O bond lengths are 2.26 Å. O2- is bonded to four equivalent Sn2+ atoms to form a mixture of edge and corner-sharing OSn4 tetrahedra.
AgI is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one AgI sheet oriented in the (0, 0, 1) direction. Ag1+ is bonded to four equivalent I1- atoms to form a mixture of edge and corner-sharing AgI4 tetrahedra. All Ag–I bond lengths are 2.92 Å. I1- is bonded in a 4-coordinate geometry to four equivalent Ag1+ atoms.
ZnSe is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one ZnSe sheet oriented in the (0, 0, 1) direction. Zn2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing ZnSe4 tetrahedra. All Zn–Se bond lengths are 2.54 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Zn2+ atoms.
NiSe is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one NiSe sheet oriented in the (0, 0, 1) direction. Ni2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing NiSe4 tetrahedra. All Ni–Se bond lengths are 2.36 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Ni2+ atoms.
CuSe is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CuSe sheet oriented in the (0, 0, 1) direction. Cu2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing CuSe4 tetrahedra. All Cu–Se bond lengths are 2.44 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Cu2+ atoms.
CoSe is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CoSe sheet oriented in the (0, 0, 1) direction. Co2+ is bonded to four equivalent Se2- atoms to form a mixture of edge and corner-sharing CoSe4 tetrahedra. All Co–Se bond lengths are 2.31 Å. Se2- is bonded in a 4-coordinate geometry to four equivalent Co2+ atoms.
NH4SiNH3F5 is lead oxide structured and crystallizes in the monoclinic Pc space group. The structure is zero-dimensional and consists of two ammonium molecules and two SiNH3F5 clusters. In each SiNH3F5 cluster, Si4+ is bonded in an octahedral geometry to one N3- and five F1- atoms. The Si–N bond length is 1.91 Å. There is one shorter (1.71 Å) and four longer (1.72 Å) Si–F bond length. N3- is bonded in a distorted trigonal non-coplanar geometry to one Si4+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Si4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Si4+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Si4+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Si4+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one Si4+ atom.
SC1 is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one SC1 sheet oriented in the (0, 0, 1) direction. C2+ is bonded to four equivalent S2- atoms to form a mixture of distorted edge and corner-sharing CS4 trigonal pyramids. All C–S bond lengths are 1.90 Å. S2- is bonded in a distorted see-saw-like geometry to four equivalent C2+ atoms.
CoS is lead oxide structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one CoS sheet oriented in the (0, 0, 1) direction. Co2+ is bonded to four equivalent S2- atoms to form a mixture of edge and corner-sharing CoS4 tetrahedra. All Co–S bond lengths are 2.19 Å. S2- is bonded in a 4-coordinate geometry to four equivalent Co2+ atoms.