SEARCH · Engineering Papers
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.
AgHg crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Ag is bonded in a 7-coordinate geometry to seven equivalent Hg atoms. There are a spread of Ag–Hg bond distances ranging from 2.91–3.00 Å. Hg is bonded in a 7-coordinate geometry to seven equivalent Ag atoms.
Nd2HgCd is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nd is bonded in a body-centered cubic geometry to four equivalent Hg and four equivalent Cd atoms. All Nd–Hg bond lengths are 3.34 Å. All Nd–Cd bond lengths are 3.34 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Nd atoms. Cd is bonded in a body-centered cubic geometry to eight equivalent Nd atoms.
(B)2Hg(CN)6(CN)2 crystallizes in the trigonal P-3m1 space group. The structure is zero-dimensional and consists of two boron molecules, two hydrogen cyanide molecules, and one Hg(CN)6 cluster. In the Hg(CN)6 cluster, Hg2+ is bonded in an octahedral geometry to six equivalent N3- atoms. All Hg–N bond lengths are 2.41 Å. C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.16 Å. N3- is bonded in a distorted linear geometry to one Hg2+ and one C2+ atom.
HgCdAsBr crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a rectangular see-saw-like geometry to two equivalent As3- and two equivalent Br1- atoms. Both Hg–As bond lengths are 2.55 Å. Both Hg–Br bond lengths are 3.62 Å. In the second Hg2+ site, Hg2+ is bonded in a linear geometry to two equivalent As3- atoms. Both Hg–As bond lengths are 2.56 Å. Cd2+ is bonded to two equivalent As3- and two Br1- atoms to form a mixture of edge and corner-sharing CdAs2Br2 trigonal pyramids. Both Cd–As bond lengths are 2.65 Å. There are one shorter (2.75 Å) and one longer (2.84 Å) Cd–Br bond lengths. As3- is bonded to two Hg2+ and two equivalent Cd2+ atoms to form corner-sharing AsCd2Hg2 trigonal pyramids. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted L-shaped geometry to two equivalent Hg2+ and two equivalent Cd2+ atoms. In the second Br1- site, Br1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms.
Ca3Hg is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ca is bonded in a distorted square co-planar geometry to four equivalent Hg atoms. All Ca–Hg bond lengths are 3.61 Å. Hg is bonded to twelve equivalent Ca atoms to form a mixture of face and corner-sharing HgCa12 cuboctahedra.
ReHgO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Re6+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.75 Å) and one longer (1.78 Å) Re–O bond length. Hg2+ is bonded in a 6-coordinate geometry to one Hg2+ and five O2- atoms. The Hg–Hg bond length is 2.61 Å. There are a spread of Hg–O bond distances ranging from 2.28–3.04 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Re6+ and one Hg2+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Re6+ and one Hg2+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Re6+ and two equivalent Hg2+ atoms. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Re6+ and one Hg2+ atom.
Hg2Pb(SBr)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two S2- atoms. There are one shorter (2.37 Å) and one longer (2.38 Å) Hg–S bond lengths. In the second Hg2+ site, Hg2+ is bonded in a 2-coordinate geometry to two S2- and two equivalent Br1- atoms. There are one shorter (2.36 Å) and one longer (2.38 Å) Hg–S bond lengths. There are one shorter (3.55 Å) and one longer (3.62 Å) Hg–Br bond lengths. Pb2+ is bonded to one S2- and three Br1- atoms to form distorted edge-sharing PbSBr3 trigonal pyramids. The Pb–S bond length is 3.06 Å. There are a spread of Pb–Br bond distances ranging from 2.75–3.01 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted water-like geometry to two Hg2+ and one Br1- atom. The S–Br bond length is 3.96 Å. In the second S2- site, S2- is bonded in a 2-coordinate geometry to two Hg2+, one Pb2+, and one Br1- atom. The S–Br bond length is 4.05 Å. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 2-coordinate geometry to two equivalent Pb2+ and two S2- atoms. In the second Br1- site, Br1- is bonded in a 1-coordinate geometry to two equivalent Hg2+ and one Pb2+ atom.
OsHgPb2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Os is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Os–Pb bond lengths are 3.12 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Hg–Pb bond lengths are 3.12 Å. Pb is bonded in a body-centered cubic geometry to four equivalent Os and four equivalent Hg atoms.
ScW2Hg is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sc is bonded in a body-centered cubic geometry to eight equivalent W atoms. All Sc–W bond lengths are 2.87 Å. W is bonded in a body-centered cubic geometry to four equivalent Sc and four equivalent Hg atoms. All W–Hg bond lengths are 2.87 Å. Hg is bonded in a distorted body-centered cubic geometry to eight equivalent W atoms.
W2HgIn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. W is bonded in a body-centered cubic geometry to four equivalent Hg and four equivalent In atoms. All W–Hg bond lengths are 2.87 Å. All W–In bond lengths are 2.87 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent W atoms. In is bonded in a body-centered cubic geometry to eight equivalent W atoms.
Be2HgTe is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Be is bonded in a body-centered cubic geometry to four equivalent Hg and four equivalent Te atoms. All Be–Hg bond lengths are 2.89 Å. All Be–Te bond lengths are 2.89 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Be atoms. Te is bonded in a body-centered cubic geometry to eight equivalent Be atoms.
KHg2B is alpha bismuth trifluoride-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to four equivalent Hg1+ and four equivalent B3- atoms. All K–Hg bond lengths are 3.16 Å. All K–B bond lengths are 3.16 Å. There are two inequivalent Hg1+ sites. In the first Hg1+ site, Hg1+ is bonded to four equivalent K1+ and four equivalent Hg1+ atoms to form distorted HgK4Hg4 tetrahedra that share corners with four equivalent BK4 tetrahedra, edges with six equivalent BK4 tetrahedra, and edges with twelve equivalent HgK4Hg4 tetrahedra. All Hg–Hg bond lengths are 3.16 Å. In the second Hg1+ site, Hg1+ is bonded to four equivalent Hg1+ atoms to form distorted corner-sharing HgHg4 tetrahedra. B3- is bonded to four equivalent K1+ atoms to form BK4 tetrahedra that share corners with four equivalent HgK4Hg4 tetrahedra, corners with twelve equivalent BK4 tetrahedra, and edges with six equivalent HgK4Hg4 tetrahedra.
BHg(CN)3CN crystallizes in the orthorhombic Pbcm space group. The structure is zero-dimensional and consists of eight boron molecules, eight hydrogen cyanide molecules, and eight Hg(CN)3 clusters. In each Hg(CN)3 cluster, Hg1+ is bonded in a 4-coordinate geometry to three N3- atoms. There are one shorter (2.39 Å) and two longer (2.40 Å) Hg–N bond lengths. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.16 Å. In the second C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.16 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a linear geometry to one Hg1+ and one C2+ atom. In the second N3- site, N3- is bonded in a distorted bent 150 degrees geometry to one Hg1+ and one C2+ atom.
HgBa2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two HgBa2 sheets oriented in the (0, 0, 1) direction. Ba is bonded in a 4-coordinate geometry to four equivalent Hg atoms. All Ba–Hg bond lengths are 3.62 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Ba atoms.
Ag2HgI4 crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of two I ribbons oriented in the (0, 1, 0) direction; one Ag3Hg2I5 sheet oriented in the (0, 0, 1) direction; and one Ag3HgI5 sheet oriented in the (0, 0, 1) direction. In each I ribbon, I1- is bonded in a 2-coordinate geometry to two equivalent I1- atoms. Both I–I bond lengths are 2.81 Å. In the Ag3Hg2I5 sheet, there are three inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded to four I1- atoms to form AgI4 tetrahedra that share corners with three equivalent HgI4 tetrahedra and corners with nine AgI4 tetrahedra. There are a spread of Ag–I bond distances ranging from 2.86–2.99 Å. In the second Ag1+ site, Ag1+ is bonded to four I1- atoms to form corner-sharing AgI4 tetrahedra. There are a spread of Ag–I bond distances ranging from 2.85–3.08 Å. In the third Ag1+ site, Ag1+ is bonded to four I1- atoms to form corner-sharing AgI4 tetrahedra. There are a spread of Ag–I bond distances ranging from 2.87–3.04 Å. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 1-coordinate geometry to three equivalent I1- atoms. There are one shorter (3.52 Å) and two longer (3.91 Å) Hg–I bond lengths. In the second Hg2+ site, Hg2+ is bonded to four I1- atoms to form HgI4 tetrahedra that share corners with three equivalent AgI4 tetrahedra and corners with six equivalent HgI4 tetrahedra. There are a spread of Hg–I bond distances ranging from 2.69–3.28 Å. There are five inequivalent I1- sites. In the first I1- site, I1- is bonded in a 2-coordinate geometry to four Hg2+ atoms. In the second I1- site, I1- is bonded to one Ag1+ and three equivalent Hg2+ atoms to form corner-sharing IAgHg3 tetrahedra. In the third I1- site, I1- is bonded to four Ag1+ atoms to form corner-sharing IAg4 tetrahedra. In the fourth I1- site, I1- is bonded to four Ag1+ atoms to form corner-sharing IAg4 tetrahedra. In the fifth I1- site, I1- is bonded in a trigonal non-coplanar geometry to three equivalent Ag1+ atoms. In the Ag3HgI5 sheet, there are three inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded to four I1- atoms to form corner-sharing AgI4 tetrahedra. There are a spread of Ag–I bond distances ranging from 2.71–3.02 Å. In the second Ag1+ site, Ag1+ is bonded to four I1- atoms to form corner-sharing AgI4 tetrahedra. There are a spread of Ag–I bond distances ranging from 2.81–2.97 Å. In the third Ag1+ site, Ag1+ is bonded to four I1- atoms to form AgI4 tetrahedra that share corners with three equivalent HgI4 tetrahedra and corners with nine AgI4 tetrahedra. There are a spread of Ag–I bond distances ranging from 2.81–2.96 Å. Hg2+ is bonded to four I1- atoms to form HgI4 tetrahedra that share corners with three equivalent AgI4 tetrahedra and corners with six equivalent HgI4 tetrahedra. There are a spread of Hg–I bond distances ranging from 2.83–3.27 Å. There are five inequivalent I1- sites. In the first I1- site, I1- is bonded in a single-bond geometry to one Ag1+ atom. In the second I1- site, I1- is bonded to four Ag1+ atoms to form corner-sharing IAg4 tetrahedra. In the third I1- site, I1- is bonded to four Ag1+ atoms to form corner-sharing IAg4 tetrahedra. In the fourth I1- site, I1- is bonded to three equivalent Ag1+ and one Hg2+ atom to form corner-sharing IAg3Hg tetrahedra. In the fifth I1- site, I1- is bonded in a distorted T-shaped geometry to three equivalent Hg2+ atoms.
Hg2AsF6 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a square co-planar geometry to four F1- atoms. All Hg–F bond lengths are 2.81 Å. In the second Hg2+ site, Hg2+ is bonded in a square co-planar geometry to four F1- atoms. There are two shorter (2.81 Å) and two longer (2.82 Å) Hg–F bond lengths. As2+ is bonded in an octahedral geometry to six F1- atoms. There is two shorter (1.76 Å) and four longer (1.78 Å) As–F bond length. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one As2+ atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to two Hg2+ and one As2+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one As2+ atom. In the fourth F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one As2+ atom. In the fifth F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one As2+ atom. Both F–Hg bond lengths are 2.82 Å. The F–As bond length is 1.78 Å.
NbHg2F6 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Nb2+ is bonded in an octahedral geometry to six F1- atoms. There is two shorter (1.93 Å) and four longer (1.94 Å) Nb–F bond length. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to four F1- atoms. There are two shorter (2.87 Å) and two longer (2.94 Å) Hg–F bond lengths. In the second Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to four F1- atoms. There are two shorter (2.84 Å) and two longer (2.92 Å) Hg–F bond lengths. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to one Nb2+ and two Hg2+ atoms. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one Nb2+ and two equivalent Hg2+ atoms. In the third F1- site, F1- is bonded in a single-bond geometry to one Nb2+ atom. In the fourth F1- site, F1- is bonded in a distorted single-bond geometry to one Nb2+ and two equivalent Hg2+ atoms. In the fifth F1- site, F1- is bonded in a distorted single-bond geometry to one Nb2+ and two equivalent Hg2+ atoms. The F–Nb bond length is 1.94 Å. Both F–Hg bond lengths are 2.87 Å.
HgCe is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ce is bonded in a body-centered cubic geometry to eight equivalent Hg atoms. All Ce–Hg bond lengths are 3.32 Å. Hg is bonded in a body-centered cubic geometry to eight equivalent Ce atoms.