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.
LuIr is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Lu is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Lu–Ir bond lengths are 2.91 Å. Ir is bonded in a body-centered cubic geometry to eight equivalent Lu atoms.
LuIr2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Lu is bonded in a 12-coordinate geometry to twelve equivalent Ir atoms. All Lu–Ir bond lengths are 3.12 Å. Ir is bonded to six equivalent Lu and six equivalent Ir atoms to form a mixture of edge, corner, and face-sharing IrLu6Ir6 cuboctahedra. All Ir–Ir bond lengths are 2.66 Å.
Lu5Ir2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are three inequivalent Lu sites. In the first Lu site, Lu is bonded to four equivalent Ir atoms to form distorted edge-sharing LuIr4 tetrahedra. There are two shorter (2.82 Å) and two longer (2.88 Å) Lu–Ir bond lengths. In the second Lu site, Lu is bonded in a 3-coordinate geometry to three equivalent Ir atoms. There are a spread of Lu–Ir bond distances ranging from 2.81–2.96 Å. In the third Lu site, Lu is bonded in a 3-coordinate geometry to three equivalent Ir atoms. There are a spread of Lu–Ir bond distances ranging from 2.72–3.23 Å. Ir is bonded in a 8-coordinate geometry to eight Lu atoms.