Search NASA⌕ Search

SEARCH · Search NASA

Results for “Ag-Hg-I-S”

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.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on AgHgSI by Materials Project

AgHgSI crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Ag1+ is bonded to two equivalent S2- and two equivalent I1- atoms to form corner-sharing AgS2I2 tetrahedra. There are one shorter (2.61 Å) and one longer (2.67 Å) Ag–S bond lengths. There are one shorter (2.80 Å) and one longer (2.94 Å) Ag–I bond lengths. Hg2+ is bonded in a distorted linear geometry to two equivalent S2- atoms. Both Hg–S bond lengths are 2.40 Å. S2- is bonded to two equivalent Ag1+ and two equivalent Hg2+ atoms to form distorted corner-sharing SAg2Hg2 trigonal pyramids. I1- is bonded in a 2-coordinate geometry to two equivalent Ag1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ag2HgSI2 by Materials Project

Ag2HgSI2 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. Ag1+ is bonded to one S2- and three equivalent I1- atoms to form corner-sharing AgSI3 tetrahedra. The Ag–S bond length is 2.60 Å. There are a spread of Ag–I bond distances ranging from 2.85–2.93 Å. Hg2+ is bonded in a distorted linear geometry to two equivalent S2- atoms. There are one shorter (2.41 Å) and one longer (2.42 Å) Hg–S bond lengths. S2- is bonded to two equivalent Ag1+ and two equivalent Hg2+ atoms to form corner-sharing SAg2Hg2 trigonal pyramids. I1- is bonded in a 3-coordinate geometry to three equivalent Ag1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgHgSI by Materials Project

AgHgSI crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. Ag1+ is bonded in a 4-coordinate geometry to two equivalent S2- and two I1- atoms. Both Ag–S bond lengths are 2.57 Å. There are one shorter (2.84 Å) and one longer (3.18 Å) Ag–I bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 4-coordinate geometry to two equivalent S2- and four I1- atoms. Both Hg–S bond lengths are 2.43 Å. There are two shorter (3.33 Å) and two longer (3.85 Å) Hg–I bond lengths. In the second Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two equivalent S2- and four equivalent I1- atoms. Both Hg–S bond lengths are 2.43 Å. All Hg–I bond lengths are 3.51 Å. S2- is bonded to two equivalent Ag1+ and two Hg2+ atoms to form corner-sharing SAg2Hg2 tetrahedra. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a 8-coordinate geometry to two equivalent Ag1+ and six Hg2+ atoms. In the second I1- site, I1- is bonded in a 6-coordinate geometry to two equivalent Ag1+ and two equivalent Hg2+ atoms.

36 MATERIALS SCIENCE↗