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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on AgTe2Au by Materials Project

AuTeAgTe crystallizes in the orthorhombic Pmma space group. The structure is one-dimensional and consists of one AgTe ribbon oriented in the (0, 0, 1) direction and one AuTe ribbon oriented in the (0, 0, 1) direction. In the AgTe ribbon, Ag1+ is bonded in a distorted linear geometry to two equivalent Te2- atoms. Both Ag–Te bond lengths are 2.72 Å. Te2- is bonded in a 2-coordinate geometry to two equivalent Ag1+ atoms. In the AuTe ribbon, Au3+ is bonded in a distorted linear geometry to two equivalent Te2- atoms. Both Au–Te bond lengths are 2.71 Å. Te2- is bonded in a distorted water-like geometry to two equivalent Au3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgTe4Au by Materials Project

AuAgTe4 is Sylvanite structured and crystallizes in the monoclinic P2/c space group. The structure is three-dimensional. Au1+ is bonded to six Te+0.50- atoms to form distorted AuTe6 octahedra that share edges with two equivalent AuTe6 octahedra and edges with four equivalent AgTe6 octahedra. There are a spread of Au–Te bond distances ranging from 2.71–3.43 Å. Ag1+ is bonded to six Te+0.50- atoms to form distorted AgTe6 octahedra that share edges with two equivalent AgTe6 octahedra and edges with four equivalent AuTe6 octahedra. There are a spread of Ag–Te bond distances ranging from 2.80–3.30 Å. There are two inequivalent Te+0.50- sites. In the first Te+0.50- site, Te+0.50- is bonded in a 2-coordinate geometry to two equivalent Au1+, one Ag1+, and one Te+0.50- atom. The Te–Te bond length is 2.85 Å. In the second Te+0.50- site, Te+0.50- is bonded in a 1-coordinate geometry to one Au1+, two equivalent Ag1+, and one Te+0.50- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ag3Te2Au by Materials Project

Ag3AuTe2 is Magnesium tetraboride-derived structured and crystallizes in the cubic I4_132 space group. The structure is three-dimensional. Au1+ is bonded in a 2-coordinate geometry to six equivalent Ag1+ and two equivalent Te2- atoms. All Au–Ag bond lengths are 3.10 Å. Both Au–Te bond lengths are 2.66 Å. Ag1+ is bonded in a 6-coordinate geometry to two equivalent Au1+ and four equivalent Te2- atoms. There are two shorter (2.97 Å) and two longer (3.01 Å) Ag–Te bond lengths. Te2- is bonded in a 1-coordinate geometry to one Au1+ and six equivalent Ag1+ atoms.

36 MATERIALS SCIENCE↗