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.
AuTb is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tb is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Tb–Au bond lengths are 3.14 Å. Au is bonded in a body-centered cubic geometry to eight equivalent Tb atoms.
TbAu2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tb is bonded in a distorted q6 geometry to ten equivalent Au atoms. There are two shorter (3.05 Å) and eight longer (3.06 Å) Tb–Au bond lengths. Au is bonded in a 10-coordinate geometry to five equivalent Tb atoms.
AuTb is alpha-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Tb is bonded in a 7-coordinate geometry to seven equivalent Au atoms. There are a spread of Tb–Au bond distances ranging from 3.02–3.14 Å. Au is bonded in a 7-coordinate geometry to seven equivalent Tb atoms.
TbAu3 is beta Cu3Ti structured and crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. Tb3+ is bonded to twelve Au1- atoms to form a mixture of edge, corner, and face-sharing TbAu12 cuboctahedra. There are a spread of Tb–Au bond distances ranging from 3.03–3.11 Å. There are two inequivalent Au1- sites. In the first Au1- site, Au1- is bonded in a distorted see-saw-like geometry to four equivalent Tb3+ atoms. In the second Au1- site, Au1- is bonded in a 12-coordinate geometry to four equivalent Tb3+ atoms.
Tb2Au is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Au atoms to form a mixture of edge and corner-sharing TbAu4 tetrahedra. There are a spread of Tb–Au bond distances ranging from 2.93–3.07 Å. In the second Tb site, Tb is bonded in a 3-coordinate geometry to five equivalent Au atoms. There are a spread of Tb–Au bond distances ranging from 2.97–3.65 Å. Au is bonded in a 9-coordinate geometry to nine Tb atoms.
TbAu6 crystallizes in the tetragonal P4_2/ncm space group. The structure is three-dimensional. Tb3+ is bonded in a 5-coordinate geometry to fifteen Au+0.50- atoms. There are a spread of Tb–Au bond distances ranging from 3.04–3.48 Å. There are five inequivalent Au+0.50- sites. In the first Au+0.50- site, Au+0.50- is bonded in a 2-coordinate geometry to three equivalent Tb3+ and five Au+0.50- atoms. There are a spread of Au–Au bond distances ranging from 2.80–3.15 Å. In the second Au+0.50- site, Au+0.50- is bonded in a distorted bent 120 degrees geometry to three equivalent Tb3+ and four Au+0.50- atoms. There are a spread of Au–Au bond distances ranging from 2.89–2.95 Å. In the third Au+0.50- site, Au+0.50- is bonded in a 10-coordinate geometry to two equivalent Tb3+ and eight Au+0.50- atoms. In the fourth Au+0.50- site, Au+0.50- is bonded in a distorted linear geometry to two equivalent Tb3+ and four equivalent Au+0.50- atoms. All Au–Au bond lengths are 2.86 Å. In the fifth Au+0.50- site, Au+0.50- is bonded in a 12-coordinate geometry to two equivalent Tb3+ and ten Au+0.50- atoms. There are a spread of Au–Au bond distances ranging from 2.87–3.09 Å.
Tb3Au is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tb is bonded in a distorted square co-planar geometry to four equivalent Au atoms. All Tb–Au bond lengths are 3.35 Å. Au is bonded to twelve equivalent Tb atoms to form a mixture of face and corner-sharing AuTb12 cuboctahedra.